/* ===================================================
   HusAzQuantiLabs - AI Chat Theme
   =================================================== */

/* --- CSS Variables --- */
:root {
    --primary: #5C2483;
    --primary-dark: #4A1D6B;
    --primary-light: #7B3BA6;
    --accent: #C75B4A;
    --accent-dark: #A94A3B;
    --accent-light: #D4776A;
    --green: #61a229;
    --red: #FF0039;
    --orange: #fcb900;
    --purple: #6B2D8B;

    --dark: #1a1028;
    --dark-mid: #2a1e3a;
    --gray-700: #3d3050;
    --gray-600: #564868;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9f7fb;
    --white: #ffffff;

    --body-bg: #f9f7fb;
    --card-bg: #ffffff;
    --chat-bg: #f9f7fb;
    --msg-user-bg: #5C2483;
    --msg-user-color: #ffffff;
    --msg-ai-bg: #ffffff;
    --msg-ai-color: #1a1028;
    --msg-ai-border: #e5e7eb;
    --input-bg: #ffffff;
    --input-border: #d1d5db;
    --input-focus: #5C2483;
    --header-bg: #ffffff;
    --header-border: #e5e7eb;
    --code-bg: #1a1028;
    --code-color: #e2e8f0;
    --dropdown-bg: #ffffff;
    --dropdown-hover: #f3f0f8;
    --dropdown-border: #e5e7eb;

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Consolas', monospace;
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 8px 10px rgba(0,0,0,0.04);
    --radius: 8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
}

/* --- Dark Theme --- */
[data-theme="dark"] {
    --primary: #9B6BC0;
    --primary-dark: #7B3BA6;
    --primary-light: #C4A6E0;
    --accent: #D4776A;
    --accent-dark: #C75B4A;
    --accent-light: #E09D93;

    --dark: #f1f5f9;
    --dark-mid: #e2e8f0;
    --gray-700: #94a3b8;
    --gray-600: #94a3b8;
    --gray-500: #64748b;
    --gray-400: #475569;
    --gray-300: #2d2240;
    --gray-200: #1e1533;
    --gray-100: #1e1533;
    --gray-50: #110d1f;
    --white: #110d1f;

    --body-bg: #110d1f;
    --card-bg: #1e1533;
    --chat-bg: #110d1f;
    --msg-user-bg: #5C2483;
    --msg-user-color: #ffffff;
    --msg-ai-bg: #1e1533;
    --msg-ai-color: #e2e8f0;
    --msg-ai-border: #2d2240;
    --input-bg: #1e1533;
    --input-border: #2d2240;
    --input-focus: #9B6BC0;
    --header-bg: #1e1533;
    --header-border: #2d2240;
    --code-bg: #110d1f;
    --code-color: #e2e8f0;
    --dropdown-bg: #1e1533;
    --dropdown-hover: #2d2240;
    --dropdown-border: #2d2240;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow: 0 1px 3px rgba(0,0,0,0.4);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.5);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.5);
}

/* --- Reset --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 15px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--dark);
    background: var(--body-bg);
    min-height: 100vh;
    overflow: hidden;
    transition: background var(--transition), color var(--transition);
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: var(--font-mono); }

/* ===================================================
   App Shell Layout (Sidebar + Main)
   =================================================== */
.app-shell {
    display: flex;
    height: 100vh;
    width: 100%;
}

/* --- Sidebar --- */
.sidebar {
    width: 240px;
    min-width: 240px;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--header-bg);
    border-right: 1px solid var(--header-border);
    transition: width 0.25s ease, min-width 0.25s ease,
                background var(--transition), border-color var(--transition);
    z-index: 60;
    overflow: hidden;
}

/* --- Collapsed Sidebar --- */
.sidebar.collapsed {
    width: 60px;
    min-width: 60px;
}

.sidebar.collapsed .nav-item span { display: none; }
.sidebar.collapsed .sidebar-user-info { display: none; }
.sidebar.collapsed .sidebar-logout-btn { display: none; }

.sidebar.collapsed .sidebar-header {
    padding: 12px 6px;
    justify-content: center;
}

.sidebar.collapsed .sidebar-logo {
    height: 28px;
    flex: none;
}

.sidebar.collapsed .sidebar-nav {
    padding: 12px 6px;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 10px;
}

.sidebar.collapsed .sidebar-footer {
    justify-content: center;
    padding: 12px 6px;
}

.sidebar.collapsed .sidebar-user {
    justify-content: center;
}

.sidebar.collapsed .sidebar-collapse-btn {
    display: none;
}

.sidebar.collapsed {
    cursor: pointer;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 18px;
    border-bottom: 1px solid var(--header-border);
}

.sidebar-logo {
    height: 36px;
    width: auto;
    object-fit: contain;
    flex: 1;
    min-width: 0;
}

/* --- Sidebar Collapse Button --- */
.sidebar-collapse-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: none;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    color: var(--gray-500);
    cursor: pointer;
    transition: all var(--transition);
    margin-left: auto;
    flex-shrink: 0;
}

.sidebar-collapse-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(92, 36, 131, 0.06);
}

.sidebar-collapse-btn svg {
    width: 16px;
    height: 16px;
}

.sidebar-collapse-btn .expand-icon { display: none; }
.sidebar.collapsed .sidebar-collapse-btn .collapse-icon { display: none; }
.sidebar.collapsed .sidebar-collapse-btn .expand-icon { display: block; }

.sidebar-nav {
    flex: 1;
    padding: 12px 10px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius);
    color: var(--gray-600);
    font-size: 0.88rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition);
    cursor: pointer;
}

.nav-item svg {
    width: 18px;
    height: 18px;
    min-width: 18px;
    stroke: currentColor;
}

.nav-item:hover {
    background: var(--gray-100);
    color: var(--dark);
    text-decoration: none;
}

.nav-item.active {
    background: rgba(92, 36, 131, 0.1);
    color: var(--primary);
    font-weight: 600;
}

[data-theme="dark"] .nav-item.active {
    background: rgba(155, 107, 192, 0.12);
}

/* --- Nav Item: Disabled / Coming Soon --- */
.nav-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: auto;
}

.nav-item.disabled:hover {
    background: transparent;
    color: var(--gray-600);
}

.nav-badge {
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 2px 6px;
    border-radius: 8px;
    line-height: 1.2;
    margin-left: auto;
}

.nav-badge.coming-soon {
    background: color-mix(in srgb, var(--amber, #f59e0b) 18%, transparent);
    color: var(--amber, #f59e0b);
    border: 1px solid color-mix(in srgb, var(--amber, #f59e0b) 30%, transparent);
}

.sidebar.collapsed .nav-badge { display: none; }

.sidebar-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-top: 1px solid var(--header-border);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.sidebar-avatar {
    width: 30px;
    height: 30px;
    font-size: 0.78rem;
}

.sidebar-user-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.sidebar-user-name {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-email {
    font-size: 0.72rem;
    color: var(--gray-500);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 140px;
}

.sidebar-admin-badge {
    display: inline-block;
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #111;
    background: var(--primary, #2dd4bf);
    padding: 1px 6px;
    border-radius: 3px;
    margin-top: 2px;
    width: fit-content;
}

.sidebar-logout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: none;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    color: var(--gray-500);
    cursor: pointer;
    transition: all var(--transition);
}

.sidebar-logout-btn:hover {
    color: var(--red);
    border-color: var(--red);
    background: rgba(255, 0, 57, 0.06);
}

.sidebar-logout-btn svg {
    width: 16px;
    height: 16px;
}

/* --- Mobile Topbar (hidden on desktop) --- */
.mobile-topbar {
    display: none;
    align-items: center;
    justify-content: space-between;
    height: 50px;
    padding: 0 12px;
    background: var(--header-bg);
    border-bottom: 1px solid var(--header-border);
    flex-shrink: 0;
}

.mobile-brand {
    font-weight: 700;
    font-size: 1rem;
    color: var(--dark);
}

/* --- Main Content --- */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    min-width: 0;
    overflow: hidden;
}

/* --- Page Sections --- */
.page-section {
    display: none;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.page-section.active {
    display: flex;
}

.page-header {
    padding: 24px 28px 16px;
    border-bottom: 1px solid var(--header-border);
    background: var(--header-bg);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 0.85rem;
    flex-wrap: wrap;
}

/* Theme toggle positioned at the right end of page headers */
.page-header .theme-toggle-btn {
    margin-left: auto;
    flex-shrink: 0;
}

.page-header-icon {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: rgba(59, 130, 246, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    margin-top: 1px;
}

.page-header-icon svg {
    width: 22px;
    height: 22px;
}

.page-header-text {
    flex: 1;
    min-width: 0;
}

.page-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 2px;
}

.page-subtitle {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.page-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px 28px;
    background: var(--chat-bg);
}

.placeholder-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 300px;
    text-align: center;
    color: var(--gray-400);
}

.placeholder-content svg {
    width: 56px;
    height: 56px;
    margin-bottom: 16px;
    stroke: var(--gray-300);
}

.placeholder-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-500);
    margin-bottom: 6px;
}

.placeholder-content p {
    font-size: 0.88rem;
    color: var(--gray-400);
    max-width: 360px;
}

/* ===================================================
   Sessions Page
   =================================================== */

/* --- Sessions Total Badge --- */
.sessions-total-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.55em;
    font-weight: 600;
    min-width: 1.8em;
    padding: 0.1em 0.5em;
    border-radius: 999px;
    background: var(--accent, #4f8cff);
    color: #fff;
    vertical-align: middle;
    margin-left: 8px;
    letter-spacing: 0.02em;
    line-height: 1.5;
}

/* --- Sessions Search Bar --- */
.sessions-search-bar {
    position: relative;
    display: flex;
    align-items: center;
    margin-bottom: 12px;
    width: 100%;
}

.sessions-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    pointer-events: none;
    flex-shrink: 0;
}

.sessions-search-input {
    width: 100%;
    padding: 10px 40px 10px 42px;
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-lg);
    background: var(--input-bg);
    color: var(--dark);
    font-size: 0.92rem;
    font-family: var(--font-main);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.sessions-search-input::placeholder {
    color: var(--gray-400);
}

.sessions-search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent);
}

.sessions-search-clear {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: none;
    background: var(--gray-200);
    color: var(--gray-500);
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
}

.sessions-search-clear:hover {
    background: var(--red);
    color: #fff;
}

/* --- Sessions Load More (lazy loading sentinel) --- */
.sessions-load-more {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 20px;
    color: var(--gray-400);
    font-size: 0.85rem;
}

.sessions-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    padding: 8px 0;
}

.sessions-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 60px 20px;
    text-align: center;
    color: var(--gray-400);
}

.sessions-empty svg {
    color: var(--gray-300);
}

.sessions-empty h3 {
    font-size: 1.1rem;
    color: var(--gray-500);
    margin: 0;
}

.sessions-empty p {
    font-size: 0.88rem;
    color: var(--gray-400);
    margin: 0;
}

.session-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 14px 18px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
}

.session-card:hover {
    background: var(--gray-100);
    border-color: var(--gray-300);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.session-card.active {
    border-color: var(--primary);
    background: color-mix(in srgb, var(--primary) 6%, var(--gray-50));
}

.session-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.session-card-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--dark);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.session-card-date {
    font-size: 0.88rem;
    color: var(--gray-400);
    white-space: nowrap;
    flex-shrink: 0;
}

.session-card-preview {
    font-size: 0.95rem;
    color: var(--gray-500);
    line-height: 1.45;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.session-card-meta {
    display: flex;
    gap: 12px;
    align-items: center;
}

.session-card-model {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--primary);
    background: color-mix(in srgb, var(--primary) 10%, transparent);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.session-card-count {
    font-size: 0.82rem;
    color: var(--gray-400);
}

.session-card-tokens {
    font-size: 0.82rem;
    font-family: var(--font-mono);
    color: var(--gray-500);
    margin-left: auto;
}

/* ===================================================
   Chat Page Layout (within page-section)
   =================================================== */

/* --- Chat Header --- */
.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
    padding: 0 16px;
    background: var(--header-bg);
    border-bottom: 1px solid var(--header-border);
    flex-shrink: 0;
    z-index: 50;
    transition: background var(--transition), border-color var(--transition);
}

.chat-header-left {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    overflow: hidden;
}

.session-separator {
    color: var(--gray-400);
    font-size: 0.85rem;
    flex-shrink: 0;
}

.session-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-600);
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    transition: background var(--transition), color var(--transition);
}

.session-name:hover {
    background: var(--gray-100);
    color: var(--dark);
}

.session-rename-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border: none;
    background: none;
    color: var(--gray-400);
    cursor: pointer;
    border-radius: var(--radius-sm);
    padding: 0;
    flex-shrink: 0;
    transition: color var(--transition), background var(--transition);
}

.session-rename-btn:hover {
    color: var(--primary);
    background: var(--gray-100);
}

.chat-logo {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.chat-brand {
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--dark);
    white-space: nowrap;
}

.chat-header-center {
    flex: 1;
    display: flex;
    justify-content: center;
    min-width: 0;
}

.chat-header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* --- Model Selector --- */
.model-selector {
    position: relative;
}

.model-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    color: var(--dark);
    font-family: var(--font-primary);
    font-size: 0.87rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.model-btn:hover:not(:disabled) {
    background: var(--gray-100);
    border-color: var(--gray-300);
}

.model-btn:disabled,
.model-btn.disabled {
    opacity: 0.55;
    cursor: not-allowed;
    pointer-events: none;
}

.model-icon {
    width: 16px;
    height: 16px;
    color: var(--primary);
}

.chevron-icon {
    width: 14px;
    height: 14px;
    color: var(--gray-500);
    transition: transform var(--transition);
}

.model-selector.open .chevron-icon {
    transform: rotate(180deg);
}

.model-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 260px;
    background: var(--dropdown-bg);
    border: 1px solid var(--dropdown-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 6px;
    z-index: 100;
    display: none;
    animation: dropdownFade 0.15s ease;
}

.model-selector.open .model-dropdown {
    display: block;
}

@keyframes dropdownFade {
    from { opacity: 0; transform: translateX(-50%) translateY(-4px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.model-dropdown-header {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    padding: 8px 12px 4px;
}

.model-option {
    display: flex;
    flex-direction: column;
    width: 100%;
    padding: 8px 12px;
    background: none;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    text-align: left;
    transition: background var(--transition);
    font-family: var(--font-primary);
}

.model-option:hover {
    background: var(--dropdown-hover);
}

.model-option.active {
    background: rgba(92, 36, 131, 0.08);
}

.model-option-name {
    font-size: 0.87rem;
    font-weight: 500;
    color: var(--dark);
}

.model-option.active .model-option-name {
    color: var(--primary);
}

.model-option-desc {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 1px;
}

.model-option.model-disabled {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: auto;
}
.model-option.model-disabled:hover {
    background: none;
}
.model-option.model-disabled .model-option-name::after {
    content: ' — Coming Soon';
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--accent-primary);
}

/* --- Model Dropdown Loading & Error --- */
.model-dropdown-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px;
    font-size: 0.82rem;
    color: var(--gray-500);
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border: 2px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.model-dropdown-error {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    font-size: 0.82rem;
    color: var(--gray-500);
}

.model-retry-btn {
    padding: 4px 12px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-primary);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition);
}

.model-retry-btn:hover {
    background: var(--primary-dark);
}

/* --- Icon Buttons --- */
.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: none;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--gray-600);
    transition: all var(--transition);
}

.icon-btn:hover {
    background: var(--gray-100);
    color: var(--dark);
    border-color: var(--gray-300);
}

.icon-btn svg {
    width: 18px;
    height: 18px;
}

/* Theme toggle icons */
.icon-btn .icon-sun { display: none; }
[data-theme="dark"] .icon-btn .icon-sun { display: block; }
[data-theme="dark"] .icon-btn .icon-moon { display: none; }

/* --- User Avatar --- */
.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    flex-shrink: 0;
}

/* ===================================================
   Chat Messages Area
   =================================================== */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 0;
    background: var(--chat-bg);
    transition: background var(--transition);
}

.chat-messages::-webkit-scrollbar {
    width: 6px;
}
.chat-messages::-webkit-scrollbar-track {
    background: transparent;
}
.chat-messages::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}
.chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* --- Welcome Screen --- */
.chat-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 40px 20px;
    text-align: center;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.welcome-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.welcome-icon svg {
    width: 32px;
    height: 32px;
    color: #fff;
    stroke: #fff;
}

.chat-welcome h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.chat-welcome p {
    font-size: 0.95rem;
    color: var(--gray-500);
    max-width: 400px;
}

.welcome-suggestions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 32px;
    max-width: 560px;
    width: 100%;
}

.suggestion-chip {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: var(--card-bg);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    color: var(--dark);
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: all var(--transition);
    line-height: 1.4;
}

.suggestion-chip:hover {
    border-color: var(--primary);
    background: rgba(92, 36, 131, 0.04);
    box-shadow: var(--shadow-sm);
}

.suggestion-chip svg {
    width: 18px;
    height: 18px;
    min-width: 18px;
    color: var(--primary);
}

/* --- Message Bubbles --- */
.msg-row {
    display: flex;
    padding: 16px 0;
    animation: msgIn 0.25s ease;
}

@keyframes msgIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.msg-row.user {
    justify-content: flex-end;
}

.msg-row.assistant {
    justify-content: flex-start;
}

.msg-content {
    max-width: 100%;
    width: 100%;
    padding: 0 24px;
}

.msg-row.user .msg-content {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.msg-bubble {
    padding: 12px 18px;
    border-radius: var(--radius-xl);
    line-height: 1.65;
    font-size: 0.93rem;
    word-break: break-word;
    position: relative;
}

.msg-row.user .msg-bubble {
    background: var(--msg-user-bg);
    color: var(--msg-user-color);
    border-bottom-right-radius: var(--radius-sm);
    max-width: 85%;
}

.msg-row.assistant .msg-bubble {
    background: transparent;
    color: var(--msg-ai-color);
    padding: 0;
    max-width: 100%;
}

/* Assistant message content formatting */
.msg-row.assistant .msg-bubble p {
    margin-bottom: 12px;
}

.msg-row.assistant .msg-bubble p:last-child {
    margin-bottom: 0;
}

.msg-row.assistant .msg-bubble code {
    background: var(--code-bg);
    color: var(--code-color);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 0.85em;
}

.msg-row.assistant .msg-bubble pre {
    background: var(--code-bg);
    color: var(--code-color);
    padding: 16px;
    border-radius: var(--radius);
    overflow-x: auto;
    margin: 12px 0;
    font-size: 0.85rem;
    line-height: 1.6;
}

.msg-row.assistant .msg-bubble pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.msg-row.assistant .msg-bubble hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin: 16px 0;
}

.msg-row.assistant .msg-bubble ul,
.msg-row.assistant .msg-bubble ol {
    padding-left: 20px;
    margin: 8px 0;
}

.msg-row.assistant .msg-bubble li {
    margin-bottom: 4px;
}

.msg-row.assistant .msg-bubble strong {
    font-weight: 600;
}

.msg-row.assistant .msg-bubble h1,
.msg-row.assistant .msg-bubble h2,
.msg-row.assistant .msg-bubble h3 {
    font-weight: 600;
    margin: 16px 0 8px;
}

.msg-row.assistant .msg-bubble h1 { font-size: 1.3rem; }
.msg-row.assistant .msg-bubble h2 { font-size: 1.15rem; }
.msg-row.assistant .msg-bubble h3 { font-size: 1.05rem; }

/* --- Markdown Tables in Chat --- */
.md-table-wrap {
    overflow-x: auto;
    margin: 12px 0;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
}

[data-theme="dark"] .md-table-wrap {
    border-color: var(--gray-700);
}

.md-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    line-height: 1.5;
    white-space: nowrap;
}

.md-table th,
.md-table td {
    padding: 8px 14px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

[data-theme="dark"] .md-table th,
[data-theme="dark"] .md-table td {
    border-bottom-color: var(--gray-700);
}

.md-table thead th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-700);
    border-bottom-width: 2px;
    position: sticky;
    top: 0;
}

[data-theme="dark"] .md-table thead th {
    background: var(--dark-mid);
    color: var(--gray-300);
}

.md-table tbody tr:hover {
    background: var(--gray-50);
}

[data-theme="dark"] .md-table tbody tr:hover {
    background: rgba(255,255,255,0.04);
}

.md-table tbody tr:last-child td {
    border-bottom: none;
}

/* --- Message Footer (timestamp + tokens) --- */
.msg-footer {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 6px;
    font-size: 0.7rem;
    color: var(--gray-500);
    letter-spacing: 0.01em;
}

.msg-row.user .msg-footer {
    justify-content: flex-end;
}

.msg-footer .token-info {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--gray-500);
    opacity: 0.85;
}

.msg-footer .msg-duration {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--gray-500);
    opacity: 0.85;
}

/* --- Image thumbnails in chat messages --- */
.msg-images {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}

.msg-image-thumb {
    max-width: 280px;
    max-height: 200px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--input-border);
    object-fit: contain;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    background: color-mix(in srgb, var(--gray-200) 30%, transparent);
}

.msg-image-thumb:hover {
    transform: scale(1.03);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

/* --- File attachments in chat messages --- */
.msg-files {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}

.msg-file-attachment {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius-lg);
    background: color-mix(in srgb, var(--primary) 8%, var(--bg-elevated));
    border: 1px solid color-mix(in srgb, var(--primary) 20%, var(--input-border));
    cursor: default;
    transition: background 0.15s ease, box-shadow 0.15s ease;
    min-width: 180px;
    max-width: 280px;
    text-decoration: none;
    color: inherit;
}

/* Clickable/downloadable file attachment */
a.msg-file-attachment.msg-file-downloadable {
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

a.msg-file-attachment.msg-file-downloadable:hover {
    background: color-mix(in srgb, var(--primary) 18%, var(--bg-elevated));
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
    border-color: var(--primary);
}

a.msg-file-attachment.msg-file-downloadable .msg-file-name::after {
    content: ' ↓';
    font-size: 0.75rem;
    opacity: 0.6;
}

.msg-file-attachment:hover {
    background: color-mix(in srgb, var(--primary) 14%, var(--bg-elevated));
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.msg-file-icon {
    position: relative;
    flex-shrink: 0;
    width: 40px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.msg-file-icon svg {
    width: 36px;
    height: 40px;
    stroke: var(--primary);
    opacity: 0.7;
}

.msg-file-ext {
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 8px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--primary);
    background: color-mix(in srgb, var(--primary) 12%, var(--bg-elevated));
    padding: 1px 4px;
    border-radius: 3px;
    line-height: 1.2;
}

.msg-file-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.msg-file-name {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.msg-file-meta {
    font-size: 0.7rem;
    color: var(--text-secondary);
    opacity: 0.8;
}

html[data-theme="dark"] .msg-file-attachment {
    background: color-mix(in srgb, var(--primary) 10%, var(--bg-elevated));
    border-color: color-mix(in srgb, var(--primary) 25%, var(--input-border));
}

html[data-theme="dark"] .msg-file-attachment:hover {
    background: color-mix(in srgb, var(--primary) 16%, var(--bg-elevated));
}

/* Full-screen image overlay */
.image-lightbox {
    position: fixed;
    inset: 0;
    z-index: 10001;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: zoom-out;
    animation: fadeIn 0.2s ease;
}

.image-lightbox img {
    max-width: 92vw;
    max-height: 92vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.msg-footer .msg-timestamp {
    font-size: 0.68rem;
    color: var(--gray-400);
    opacity: 0.8;
}

/* Copy button in assistant message footer */
.msg-copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: none;
    border: 1px solid transparent;
    border-radius: 5px;
    padding: 2px 7px;
    cursor: pointer;
    color: var(--gray-500);
    font-size: 0.68rem;
    font-family: inherit;
    transition: all 0.2s;
    line-height: 1;
}

.msg-copy-btn:hover {
    color: var(--accent, #3b82f6);
    border-color: rgba(59, 130, 246, 0.3);
    background: rgba(59, 130, 246, 0.06);
}

.msg-copy-btn svg {
    flex-shrink: 0;
}

/* --- Typing indicator --- */
.typing-indicator {
    display: inline-flex;
    gap: 4px;
    padding: 8px 0;
}

.typing-indicator span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--gray-400);
    animation: typingBounce 1.2s infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-6px); opacity: 1; }
}

/* --- Model label in messages --- */
.msg-model-label {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--gray-500);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.msg-model-label svg {
    width: 12px;
    height: 12px;
}

/* ===================================================
   System Prompt
   =================================================== */
.system-prompt-bar {
    margin-bottom: 8px;
}

.system-prompt-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border: 1px solid var(--input-border);
    border-radius: var(--radius);
    background: var(--input-bg);
    color: var(--gray-500);
    font-family: var(--font-primary);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.system-prompt-toggle:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.system-prompt-toggle.open {
    border-color: var(--primary);
    color: var(--primary);
}

.system-prompt-chevron {
    transition: transform 0.2s ease;
}

.system-prompt-toggle.open .system-prompt-chevron {
    transform: rotate(180deg);
}

.system-prompt-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease, margin 0.25s ease;
    margin-top: 0;
}

.system-prompt-panel.open {
    max-height: 200px;
    margin-top: 8px;
}

.system-prompt-input {
    width: 100%;
    min-height: 60px;
    max-height: 150px;
    padding: 10px 14px;
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-lg);
    background: var(--input-bg);
    color: var(--dark);
    font-family: var(--font-primary);
    font-size: 0.85rem;
    line-height: 1.5;
    resize: vertical;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
    box-sizing: border-box;
}

.system-prompt-input::placeholder {
    color: var(--gray-400);
    font-style: italic;
}

.system-prompt-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(92, 36, 131, 0.12);
}

/* ===================================================
   Session-Scoped Files Bar (above input area)
   =================================================== */
.session-files-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}

/* ===================================================
   Upload Status (inline above input)
   =================================================== */
.upload-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    margin-bottom: 8px;
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-weight: 500;
    animation: uploadStatusFadeIn 0.2s ease;
}

@keyframes uploadStatusFadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

.upload-status.processing {
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.20);
    color: #6366f1;
}

.upload-status.success {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.20);
    color: #10b981;
}

.upload-status.error {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.20);
    color: #ef4444;
}

html[data-theme="dark"] .upload-status.processing {
    background: rgba(129, 140, 248, 0.10);
    border-color: rgba(129, 140, 248, 0.25);
    color: #a5b4fc;
}

html[data-theme="dark"] .upload-status.success {
    background: rgba(52, 211, 153, 0.10);
    border-color: rgba(52, 211, 153, 0.25);
    color: #34d399;
}

html[data-theme="dark"] .upload-status.error {
    background: rgba(248, 113, 113, 0.10);
    border-color: rgba(248, 113, 113, 0.25);
    color: #f87171;
}

.upload-status-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    flex-shrink: 0;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.upload-status-icon {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.session-file-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px 4px 8px;
    border-radius: 20px;
    background: rgba(99, 102, 241, 0.10);
    border: 1px solid rgba(99, 102, 241, 0.25);
    color: #6366f1;
    font-size: 0.75rem;
    font-weight: 500;
    max-width: 260px;
    transition: all var(--transition);
}

html[data-theme="dark"] .session-file-chip {
    background: rgba(129, 140, 248, 0.12);
    border-color: rgba(129, 140, 248, 0.30);
    color: #a5b4fc;
}

.session-file-chip svg {
    width: 13px;
    height: 13px;
    flex-shrink: 0;
    opacity: 0.8;
}

.session-file-chip-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 180px;
}

.session-file-chip-remove {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border: none;
    background: rgba(99, 102, 241, 0.15);
    color: inherit;
    border-radius: 50%;
    cursor: pointer;
    font-size: 12px;
    line-height: 1;
    padding: 0;
    margin-left: 2px;
    transition: background 0.15s ease;
    flex-shrink: 0;
}

.session-file-chip-remove:hover {
    background: rgba(239, 68, 68, 0.25);
    color: #ef4444;
}

html[data-theme="dark"] .session-file-chip-remove:hover {
    background: rgba(248, 113, 113, 0.25);
    color: #f87171;
}

/* ===================================================
   Session Token Meter (compact header version)
   =================================================== */
.token-meter {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 5px 12px;
    border-radius: 6px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    transition: all var(--transition);
    min-width: 180px;
    max-width: 320px;
    width: max-content;
}

.token-meter-label {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
}

.token-meter-bar {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: color-mix(in srgb, var(--gray-300) 40%, transparent);
    display: flex;
    overflow: hidden;
}

[data-theme="dark"] .token-meter-bar {
    background: color-mix(in srgb, var(--gray-600) 40%, transparent);
}

.token-meter-fill {
    height: 100%;
    transition: width 0.4s ease;
    min-width: 0;
}

.token-meter-in {
    background: var(--primary);
    border-radius: 3px 0 0 3px;
}

.token-meter-out {
    background: #6366f1;
    border-radius: 0 3px 3px 0;
}

.token-meter-info {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--gray-500);
    font-family: var(--font-mono);
    white-space: nowrap;
    overflow: hidden;
}

.token-meter-sep {
    color: var(--gray-400);
    opacity: 0.4;
    font-size: 0.72rem;
}

.token-meter-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 3px;
}

.legend-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.legend-dot.in {
    background: var(--primary);
}

.legend-dot.out {
    background: #6366f1;
}

.token-meter-stats {
    font-size: 0.78rem;
    font-family: var(--font-mono);
    color: var(--gray-500);
}

.token-meter-pct {
    margin-left: auto;
    font-weight: 600;
    font-size: 0.75rem;
    flex-shrink: 0;
}

/* Token meter status colors */
.token-meter.safe .token-meter-pct {
    color: var(--primary);
}

.token-meter.warning {
    border-color: color-mix(in srgb, var(--orange) 50%, transparent);
}

.token-meter.warning .token-meter-pct {
    color: #d97706;
}

.token-meter.danger {
    border-color: color-mix(in srgb, var(--red) 40%, transparent);
    background: color-mix(in srgb, var(--red) 5%, var(--input-bg));
}

.token-meter.danger .token-meter-pct {
    color: var(--red);
    animation: pulseDanger 1.5s ease-in-out infinite;
}

@keyframes pulseDanger {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ===================================================
   Context Window Warning Banner
   =================================================== */
.context-warning {
    display: none;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: var(--radius);
    font-size: 0.82rem;
    line-height: 1.45;
    margin-bottom: 8px;
    transition: all var(--transition);
}

.context-warning.warn {
    display: flex;
    background: color-mix(in srgb, var(--orange) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--orange) 35%, transparent);
    color: #92600a;
}

.context-warning.critical {
    display: flex;
    background: color-mix(in srgb, var(--red) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--red) 30%, transparent);
    color: #9f1239;
}

[data-theme="dark"] .context-warning.warn {
    color: #fbbf24;
}

[data-theme="dark"] .context-warning.critical {
    color: #fb7185;
}

.context-warning svg {
    flex-shrink: 0;
}

.context-warning.warn svg {
    stroke: #d97706;
}

.context-warning.critical svg {
    stroke: var(--red);
}

.context-warning-link {
    background: none;
    border: none;
    padding: 0;
    font: inherit;
    color: var(--primary);
    text-decoration: underline;
    cursor: pointer;
}

.context-warning-link:hover {
    color: var(--primary-dark);
}

/* ===================================================
   Chat Input Area
   =================================================== */
.chat-input-area {
    flex-shrink: 0;
    padding: 0 16px 12px;
    background: var(--chat-bg);
    transition: background var(--transition);
}

.chat-input-container {
    display: flex;
    align-items: flex-end;
    gap: 0;
    background: var(--input-bg);
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-xl);
    padding: 8px 12px 8px 18px;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}

.chat-input-container:focus-within {
    border-color: var(--input-focus);
    box-shadow: 0 0 0 3px rgba(92, 36, 131, 0.12);
}

.chat-input-container.drag-over {
    border-color: var(--primary);
    border-style: dashed;
    background: color-mix(in srgb, var(--primary) 5%, var(--input-bg));
}

.chat-input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-family: var(--font-primary);
    font-size: 0.93rem;
    color: var(--dark);
    resize: none;
    max-height: 200px;
    line-height: 1.5;
    padding: 6px 0;
}

.chat-input::placeholder {
    color: var(--gray-400);
}

.chat-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.chat-input-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    padding-bottom: 2px;
}

/* --- Hidden File Input --- */
.attach-input-hidden {
    position: absolute;
    width: 0;
    height: 0;
    opacity: 0;
    pointer-events: none;
}

/* --- Attach Button --- */
.attach-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius);
    border: none;
    background: transparent;
    color: var(--gray-500);
    cursor: pointer;
    transition: all var(--transition);
    flex-shrink: 0;
    margin-right: 4px;
}

.attach-btn:hover {
    background: color-mix(in srgb, var(--primary) 10%, transparent);
    color: var(--primary);
    transform: scale(1.08);
}

.attach-btn:active {
    transform: scale(0.95);
}

.attach-btn svg {
    width: 20px;
    height: 20px;
}

/* --- Attachment Preview Strip --- */
.attach-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 12px;
    margin-bottom: 6px;
    border: 1.5px dashed var(--input-border);
    border-radius: var(--radius-lg);
    background: color-mix(in srgb, var(--primary) 3%, var(--input-bg));
    max-height: 160px;
    overflow-y: auto;
}

.attach-preview-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px 4px 6px;
    border-radius: var(--radius);
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    font-size: 0.78rem;
    color: var(--dark);
    max-width: 220px;
    position: relative;
    transition: all var(--transition);
}

.attach-preview-item:hover {
    border-color: var(--primary);
}

.attach-preview-thumb {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    object-fit: cover;
    flex-shrink: 0;
}

/* Image attachments: larger visual preview */
.attach-preview-image {
    padding: 3px;
    max-width: none;
    width: auto;
}

.attach-preview-image .attach-preview-thumb {
    width: auto;
    height: 72px;
    max-width: 120px;
    border-radius: 6px;
    object-fit: cover;
}

.attach-preview-icon {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    background: color-mix(in srgb, var(--primary) 12%, transparent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--primary);
}

.attach-preview-icon svg {
    width: 16px;
    height: 16px;
}

.attach-preview-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
    flex: 1;
}

.attach-preview-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
    font-size: 0.76rem;
    line-height: 1.2;
}

.attach-preview-size {
    font-size: 0.65rem;
    color: var(--gray-500);
    font-family: var(--font-mono);
}

.attach-preview-remove {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 1.5px solid var(--input-border);
    background: var(--bg);
    color: var(--gray-500);
    font-size: 12px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition);
}

.attach-preview-item:hover .attach-preview-remove {
    opacity: 1;
}

.attach-preview-remove:hover {
    background: var(--red);
    border-color: var(--red);
    color: #fff;
}

/* --- Send Button --- */
.send-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius);
    border: none;
    background: var(--primary);
    color: #fff;
    cursor: pointer;
    transition: all var(--transition);
    flex-shrink: 0;
}

.send-btn:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.send-btn:disabled {
    background: var(--gray-300);
    cursor: not-allowed;
    color: var(--gray-500);
}

.send-btn svg {
    width: 18px;
    height: 18px;
}

/* --- Stop Button --- */
.stop-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--radius);
    border: 1px solid var(--red);
    background: rgba(255, 0, 57, 0.08);
    color: var(--red);
    font-family: var(--font-primary);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.stop-btn:hover {
    background: var(--red);
    color: #fff;
}

.stop-btn svg {
    width: 14px;
    height: 14px;
}

/* --- Disclaimer --- */
.chat-disclaimer {
    text-align: center;
    font-size: 0.73rem;
    color: var(--gray-400);
    margin-top: 8px;
}

/* --- Chat Input Counters (char count | ~tokens) --- */
.chat-input-counters {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.72rem;
    color: var(--gray-400);
    padding: 2px 4px 0;
    font-family: var(--font-mono);
    letter-spacing: -0.01em;
}

.chat-input-counters .counter-sep {
    color: var(--gray-300);
    font-weight: 300;
}

/* --- Direct Mode Toggle Bar --- */
.direct-mode-bar {
    display: flex;
    align-items: center;
    padding: 4px 4px 0;
}

.direct-mode-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
    font-size: 0.78rem;
    color: var(--gray-500);
}

.direct-mode-toggle input[type="checkbox"] {
    accent-color: var(--primary);
    width: 15px;
    height: 15px;
    margin: 0;
    cursor: pointer;
}

.direct-mode-toggle input[type="checkbox"]:disabled {
    cursor: not-allowed;
    opacity: 0.85;
}

.direct-mode-switch {
    display: none; /* using native checkbox instead */
}

.direct-mode-label {
    font-weight: 600;
    color: var(--gray-600);
}

.direct-mode-hint {
    font-size: 0.7rem;
    color: var(--gray-400);
    font-style: italic;
}

.direct-mode-toggle:has(input:checked) .direct-mode-label {
    color: var(--primary);
}

[data-theme="dark"] .direct-mode-toggle {
    color: var(--gray-400);
}

[data-theme="dark"] .direct-mode-label {
    color: var(--gray-300);
}

[data-theme="dark"] .direct-mode-toggle:has(input:checked) .direct-mode-label {
    color: var(--primary);
}

/* --- Thinking Panel (RAG pipeline status) --- */
.thinking-panel {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 10px 14px;
    margin-bottom: 10px;
    font-size: 0.78rem;
    color: var(--gray-500);
    transition: opacity 0.3s ease;
    overflow: visible;
}

.thinking-panel.collapsed {
    padding: 6px 14px;
    margin-bottom: 6px;
    overflow: hidden;
    opacity: 0.8;
}

/* Fully hide collapsed panels that have NO toggle (no reasoning content) */
.thinking-panel.collapsed:not(:has(.thinking-toggle)) {
    opacity: 0.5;
    max-height: 0;
    padding: 0 14px;
    margin-bottom: 0;
    border-color: transparent;
}

/* Hide steps/text in collapsed panel (only toggle is visible) */
.thinking-panel.collapsed .thinking-steps,
.thinking-panel.collapsed .thinking-text {
    display: none;
}

/* Toggle button */
.thinking-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--primary);
    user-select: none;
}

.thinking-toggle:hover {
    opacity: 0.8;
}

.thinking-steps {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.thinking-step {
    display: flex;
    align-items: center;
    gap: 6px;
    line-height: 1.4;
}

.thinking-step.active {
    color: var(--primary);
    font-weight: 500;
}

.thinking-step.done {
    color: var(--gray-400);
}

.thinking-step.done svg {
    display: none;
}

.thinking-step.done::before {
    content: '✓';
    font-size: 0.75rem;
    color: var(--green);
    width: 14px;
    text-align: center;
    flex-shrink: 0;
}

/* Extended Thinking text — scrollable reasoning trace */
.thinking-text {
    margin-top: 8px;
    padding: 8px 10px;
    background: rgba(0, 0, 0, 0.03);
    border-radius: 6px;
    font-size: 0.75rem;
    line-height: 1.5;
    color: var(--gray-500);
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 320px;
    overflow-y: auto;
    border-left: 3px solid var(--primary);
}

.thinking-text::-webkit-scrollbar {
    width: 4px;
}

.thinking-text::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 2px;
}

[data-theme="dark"] .thinking-panel {
    background: rgba(30, 41, 59, 0.5);
    border-color: var(--gray-300);
}

[data-theme="dark"] .thinking-text {
    background: rgba(0, 0, 0, 0.2);
    color: var(--gray-400);
}

[data-theme="dark"] .thinking-step.done {
    color: var(--gray-500);
}

/* ===================================================
   Toast Notifications
   =================================================== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: var(--radius-lg);
    background: var(--bg);
    border: 1px solid var(--input-border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    font-size: 0.85rem;
    color: var(--dark);
    max-width: 420px;
    pointer-events: auto;
    opacity: 0;
    transform: translateX(40px);
    transition: none;
}

.toast.show {
    animation: toastIn 0.3s ease forwards;
}

.toast.removing {
    animation: toastOut 0.25s ease forwards;
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(40px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateX(0); }
    to   { opacity: 0; transform: translateX(40px); }
}

.toast-error {
    border-color: color-mix(in srgb, var(--red) 40%, transparent);
    background: color-mix(in srgb, var(--red) 18%, var(--bg));
}

.toast-error .toast-icon { color: var(--red); }

.toast-warn {
    border-color: color-mix(in srgb, var(--orange) 40%, transparent);
    background: color-mix(in srgb, var(--orange) 18%, var(--bg));
}

.toast-warn .toast-icon { color: #d97706; }

.toast-success {
    border-color: color-mix(in srgb, var(--primary) 40%, transparent);
    background: color-mix(in srgb, var(--primary) 18%, var(--bg));
}

.toast-success .toast-icon { color: var(--primary); }

.toast-info {
    border-color: color-mix(in srgb, #3b82f6 40%, transparent);
    background: color-mix(in srgb, #3b82f6 18%, var(--bg));
}

.toast-info .toast-icon { color: #3b82f6; }

.toast-icon {
    flex-shrink: 0;
    display: flex;
}

.toast-message {
    flex: 1;
    line-height: 1.4;
}

.toast-close {
    flex-shrink: 0;
    background: none;
    border: none;
    font-size: 18px;
    color: var(--gray-400);
    cursor: pointer;
    padding: 0 2px;
    line-height: 1;
}

.toast-close:hover {
    color: var(--dark);
}

/* ===================================================
   Auth Screens
   =================================================== */
.auth-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #5C2483 0%, #4A1D6B 40%, #111827 100%);
    padding: 24px;
    position: fixed;
    inset: 0;
    z-index: 9999;
}

.auth-card {
    background: var(--card-bg, #ffffff);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    max-width: 440px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-xl);
    animation: authFadeIn 0.5s ease-out;
}

.auth-card-error {
    max-width: 500px;
    border-top: 4px solid var(--red);
}

@keyframes authFadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

.auth-logo { margin-bottom: 24px; }
.auth-logo-img { height: 48px; width: auto; }

.auth-title {
    font-family: var(--font-primary);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--dark, #111827);
    margin-bottom: 4px;
}

.auth-title-error { color: var(--red); }

.auth-subtitle {
    font-size: 0.95rem;
    color: var(--gray-500, #6b7280);
    margin-bottom: 20px;
    font-weight: 500;
}

.auth-description {
    font-size: 0.9rem;
    color: var(--gray-500, #6b7280);
    line-height: 1.5;
    margin-bottom: 8px;
}

.auth-blocked-email {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    color: var(--red);
    background: rgba(255, 0, 57, 0.08);
    border: 1px solid rgba(255, 0, 57, 0.2);
    border-radius: var(--radius);
    padding: 10px 16px;
    margin: 12px 0 16px;
    word-break: break-all;
}

.auth-error-icon { margin-bottom: 16px; }
.auth-error-icon svg { color: var(--red); stroke: var(--red); }

.auth-help-box {
    background: var(--gray-100, #f3f4f6);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    margin: 20px 0;
    text-align: left;
    font-size: 0.85rem;
    color: var(--gray-700, #374151);
    line-height: 1.6;
}

.auth-help-box p + p { margin-top: 6px; }

.auth-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 28px;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.auth-btn-primary {
    background: var(--primary);
    color: #ffffff;
    margin-top: 24px;
    box-shadow: 0 4px 14px rgba(92, 36, 131, 0.35);
}

.auth-btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(92, 36, 131, 0.45);
}

.auth-btn-secondary {
    background: transparent;
    color: var(--gray-700, #374151);
    border: 2px solid var(--gray-200, #e5e7eb);
    margin-top: 8px;
}

.auth-btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.auth-btn-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
}

.auth-footer {
    font-size: 0.78rem;
    color: var(--gray-400, #9ca3af);
    margin-top: 24px;
}

[data-theme="dark"] .auth-screen {
    background: linear-gradient(135deg, #4A1D6B 0%, #0f172a 60%, #0f172a 100%);
}

[data-theme="dark"] .auth-help-box {
    background: #0f172a;
    color: #94a3b8;
}

[data-theme="dark"] .auth-blocked-email {
    background: rgba(255, 0, 57, 0.12);
    border-color: rgba(255, 0, 57, 0.25);
}

/* ===================================================
   Consumption Tracking Page
   =================================================== */

/* --- Controls --- */
.consumption-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 16px;
    margin-bottom: 24px;
    padding: 20px;
    background: var(--card-bg);
    border: 1px solid var(--header-border);
    border-radius: var(--radius-lg);
}

.consumption-date-range {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    flex-wrap: wrap;
}

.date-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.date-field label {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.date-input {
    padding: 8px 12px;
    border: 1px solid var(--input-border);
    border-radius: var(--radius);
    background: var(--input-bg);
    color: var(--dark);
    font-family: var(--font-primary);
    font-size: 0.88rem;
    transition: border-color var(--transition);
}

.date-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(92, 36, 131, 0.12);
}

.date-separator {
    font-size: 0.85rem;
    color: var(--gray-400);
    padding-bottom: 10px;
}

.consumption-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border: 1px solid var(--input-border);
    border-radius: var(--radius);
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.consumption-btn.primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.consumption-btn.primary:hover {
    background: var(--primary-dark);
}

.consumption-quick-range {
    display: flex;
    gap: 6px;
    margin-left: auto;
}

.range-btn {
    padding: 6px 14px;
    border: 1px solid var(--input-border);
    border-radius: var(--radius-full);
    background: var(--card-bg);
    color: var(--gray-600);
    font-family: var(--font-primary);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.range-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.range-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* --- Error & Loading --- */
.consumption-error {
    padding: 12px 16px;
    background: rgba(255, 0, 57, 0.06);
    border: 1px solid rgba(255, 0, 57, 0.15);
    border-radius: var(--radius);
    color: var(--red);
    font-size: 0.88rem;
    margin-bottom: 16px;
}

.consumption-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 48px 20px;
    color: var(--gray-500);
    font-size: 0.9rem;
}

/* --- Summary Cards --- */
.consumption-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.consumption-card {
    background: var(--card-bg);
    border: 1px solid var(--header-border);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-align: center;
    transition: box-shadow var(--transition);
}

.consumption-card:hover {
    box-shadow: var(--shadow-md);
}

.consumption-card-label {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.consumption-card-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--dark);
    font-family: var(--font-mono);
}

.consumption-card.card-input {
    border-left: 3px solid var(--primary);
}

.consumption-card.card-output {
    border-left: 3px solid var(--purple);
}

.consumption-card.card-cost {
    border-left: 3px solid var(--green);
}

/* --- Sections --- */
.consumption-section {
    background: var(--card-bg);
    border: 1px solid var(--header-border);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 20px;
}

.consumption-section-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 16px;
}

/* --- Table --- */
.consumption-table-wrap {
    overflow-x: auto;
}

.consumption-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.consumption-table thead {
    background: var(--gray-50);
    border-bottom: 2px solid var(--header-border);
}

.consumption-table th {
    padding: 10px 14px;
    text-align: left;
    font-weight: 600;
    color: var(--gray-600);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.consumption-table th.num-header {
    text-align: right;
}

.consumption-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--gray-200);
    color: var(--dark);
}

.consumption-table td.num-cell {
    text-align: right;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.consumption-table td.cost-cell {
    color: var(--green);
    font-weight: 500;
}

.model-name-cell {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.model-color-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.consumption-empty {
    text-align: center;
    color: var(--gray-400);
    padding: 24px !important;
    font-style: italic;
}

[data-theme="dark"] .consumption-table thead {
    background: var(--gray-200);
}

/* --- Bar Chart --- */
.chart-bars {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chart-bar-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.chart-bar-label {
    width: 140px;
    flex-shrink: 0;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--dark);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chart-bar-track {
    flex: 1;
    display: flex;
    height: 28px;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.chart-bar-fill {
    height: 100%;
    transition: width 0.5s ease;
    min-width: 2px;
}

.chart-bar-fill.prompt {
    background: var(--primary);
    opacity: 0.85;
}

.chart-bar-fill.completion {
    background: var(--purple);
    opacity: 0.85;
}

.chart-bar-value {
    width: 60px;
    flex-shrink: 0;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--gray-600);
    font-family: var(--font-mono);
    text-align: right;
}

.chart-legend {
    display: flex;
    gap: 20px;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--gray-200);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    color: var(--gray-500);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

.legend-dot.prompt {
    background: var(--primary);
}

.legend-dot.completion {
    background: var(--purple);
}

/* --- Cost Breakdown --- */
.cost-unavailable {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px 16px;
    background: rgba(252, 185, 0, 0.06);
    border: 1px solid rgba(252, 185, 0, 0.2);
    border-radius: var(--radius);
    color: var(--gray-600);
    font-size: 0.85rem;
    line-height: 1.5;
}

.cost-unavailable svg {
    flex-shrink: 0;
    color: var(--orange);
    margin-top: 2px;
}

.cost-breakdown-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-600);
    margin-bottom: 12px;
}

.cost-meter-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.cost-meter-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: var(--gray-50);
    font-size: 0.85rem;
}

.cost-meter-item.cost-meter-total {
    background: rgba(92, 36, 131, 0.06);
    border: 1px solid rgba(92, 36, 131, 0.15);
    margin-top: 4px;
}

.cost-meter-name {
    color: var(--gray-600);
}

.cost-meter-value {
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--green);
}

/* Responsive */
@media (max-width: 768px) {
    .consumption-controls {
        flex-direction: column;
        align-items: stretch;
    }
    .consumption-quick-range {
        margin-left: 0;
    }
    .consumption-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    .chart-bar-label {
        width: 90px;
        font-size: 0.75rem;
    }
}

/* ===================================================
   Combined Total Cost Banner — Consumption Page
   =================================================== */
.combined-cost-banner {
    margin-bottom: 24px;
}

.combined-cost-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 20px 28px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(92, 36, 131, 0.08), rgba(199, 91, 74, 0.08));
    border: 1px solid rgba(92, 36, 131, 0.18);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.combined-cost-main {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.combined-cost-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.combined-cost-value {
    font-size: 2rem;
    font-weight: 800;
    font-family: var(--font-mono);
    background: linear-gradient(135deg, #5C2483, #9b51e0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.combined-cost-breakdown {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.combined-cost-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
}

.combined-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.combined-dot.azure {
    background: #5C2483;
}

.combined-dot.opus {
    background: #9b51e0;
}

.combined-dot.grok {
    background: #f97316;
}

.combined-provider {
    color: var(--gray-500);
    font-weight: 500;
    min-width: 110px;
}

.combined-amount {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--dark);
}

.azure-item .combined-amount {
    color: #5C2483;
}

.opus-item .combined-amount {
    color: #9b51e0;
}

.grok-item .combined-amount {
    color: #f97316;
}

@media (max-width: 768px) {
    .combined-cost-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    .combined-cost-value {
        font-size: 1.5rem;
    }
}

/* ===================================================
   Opus (Bedrock) Section — Consumption Page
   =================================================== */
.opus-section {
    margin-top: 32px;
    border-top: 2px solid rgba(199, 91, 74, 0.2);
    padding-top: 24px;
}

.opus-section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.opus-section-header .consumption-section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0;
    color: #9b51e0;
}

.opus-section-header .consumption-section-title svg {
    color: #9b51e0;
    flex-shrink: 0;
}

.opus-badge {
    font-size: 0.7rem;
    padding: 3px 10px;
    border-radius: 20px;
    background: rgba(199, 91, 74, 0.12);
    color: #9b51e0;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* Pricing Reference Card */
.opus-pricing-ref {
    margin-bottom: 20px;
}

.opus-rate-card {
    display: flex;
    gap: 24px;
    padding: 16px 20px;
    background: rgba(199, 91, 74, 0.04);
    border: 1px solid rgba(199, 91, 74, 0.12);
    border-radius: var(--radius);
}

.opus-rate {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.opus-rate-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.opus-rate-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: #9b51e0;
    font-family: var(--font-mono);
}

.opus-rate-unit {
    font-size: 0.75rem;
    color: var(--gray-400);
}

/* Opus Cost Cards */
.opus-cards .card-opus-requests {
    border-top: 3px solid #9b51e0;
}

.opus-cost-card {
    border-top: 3px solid #9b51e0 !important;
}

.opus-cost-card .consumption-card-value {
    color: #9b51e0;
}

/* Cost Breakdown Detail */
.opus-cost-detail {
    margin-top: 20px;
    background: var(--card-bg, #1e1e2e);
    border-radius: var(--radius);
    border: 1px solid var(--border, rgba(255, 255, 255, 0.08));
    padding: 20px;
}

.opus-detail-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-600);
    margin: 0 0 16px 0;
}

.opus-cost-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.opus-cost-row {
    display: grid;
    grid-template-columns: 120px 1fr 1.2fr auto;
    gap: 12px;
    align-items: center;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    background: var(--gray-50);
    font-size: 0.85rem;
}

.opus-cost-label {
    color: var(--gray-600);
    font-weight: 500;
}

.opus-cost-tokens {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--dark);
    text-align: right;
}

.opus-cost-calc {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--gray-400);
    text-align: right;
}

.opus-cost-amount {
    font-family: var(--font-mono);
    font-weight: 600;
    color: #9b51e0;
    text-align: right;
    min-width: 80px;
}

.opus-cost-total-row {
    background: rgba(199, 91, 74, 0.06);
    border: 1px solid rgba(199, 91, 74, 0.12);
    margin-top: 4px;
}

.opus-cost-total-row .opus-cost-amount {
    font-size: 1rem;
}

/* Opus Daily & Sessions */
.opus-daily-section,
.opus-sessions-section {
    margin-top: 20px;
}

.opus-sessions-section .consumption-table td.cost-cell {
    color: #9b51e0;
}

.consumption-load-more {
    display: block;
    margin: 12px auto 0;
    padding: 6px 24px;
    background: rgba(255,255,255,0.06);
    color: var(--text-secondary, #aaa);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    font-size: 0.82rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}
.consumption-load-more:hover {
    background: rgba(255,255,255,0.12);
    color: var(--text-primary, #e0e0e0);
}

/* ===================================================
   Grok (xAI) Section — Consumption Page
   =================================================== */
.grok-section {
    margin-top: 32px;
    border-top: 2px solid rgba(249, 115, 22, 0.2);
    padding-top: 24px;
}

.grok-section .opus-section-header .consumption-section-title {
    color: #f97316;
}

.grok-section .opus-section-header .consumption-section-title svg {
    color: #f97316;
}

.grok-badge {
    font-size: 0.7rem;
    padding: 3px 10px;
    border-radius: 20px;
    background: rgba(249, 115, 22, 0.12);
    color: #f97316;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.grok-cards .card-grok-requests {
    border-top: 3px solid #f97316;
}

.grok-cost-card {
    border-top: 3px solid #f97316 !important;
}

.grok-cost-card .consumption-card-value {
    color: #f97316;
}

.grok-model-breakdown,
.grok-sessions-section {
    margin-top: 20px;
}

.grok-sessions-section .consumption-table td.cost-cell {
    color: #f97316;
}

.grok-rate-hint {
    display: block;
    font-size: 0.7rem;
    color: var(--gray-400);
    font-weight: 400;
    margin-top: 2px;
}

@media (max-width: 768px) {
    .opus-rate-card {
        flex-direction: column;
        gap: 12px;
    }
    .opus-cost-row {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }
    .opus-cost-calc {
        display: none;
    }
}

@media (max-width: 480px) {
    .consumption-cards {
        grid-template-columns: 1fr;
    }
    .consumption-date-range {
        flex-direction: column;
        align-items: stretch;
    }
    .date-separator {
        display: none;
    }
}

/* ===================================================
   Responsive
   =================================================== */

/* Tablet: collapse sidebar */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        height: 100vh;
        box-shadow: var(--shadow-xl);
        transition: left 0.25s ease;
        z-index: 200;
    }

    .sidebar.open {
        left: 0;
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.4);
        z-index: 190;
    }

    .sidebar-overlay.visible {
        display: block;
    }

    .mobile-topbar {
        display: flex;
    }

    .chat-header-left .chat-brand { display: none; }
}

/* Phone: tighter spacing */
@media (max-width: 640px) {
    .chat-header { padding: 0 10px; }
    .welcome-suggestions { grid-template-columns: 1fr; }
    .chat-welcome h2 { font-size: 1.3rem; }
    .chat-input-area { padding: 0 10px 8px; }
    .msg-content { padding: 0 10px; }

    .model-btn span#model-name {
        max-width: 100px;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .model-dropdown {
        left: 0;
        transform: none;
        min-width: calc(100vw - 260px);
    }

    .token-meter {
        min-width: 150px;
        max-width: 240px;
    }

    .token-meter-stats {
        display: none;
    }

    .auth-card { padding: 32px 24px; }
    .auth-title { font-size: 1.3rem; }

    .page-header { padding: 16px 16px 12px; gap: 0.65rem; }
    .page-header-icon { width: 36px; height: 36px; }
    .page-header-icon svg { width: 18px; height: 18px; }
    .page-body { padding: 16px; }
}

@media (max-width: 400px) {
    .icon-btn:not(#theme-toggle):not(#sidebar-toggle) { display: none; }
    .token-meter {
        display: none;
    }
}

/* ===================================================
   Error + Utility
   =================================================== */
.msg-error {
    color: var(--red);
    background: rgba(255, 0, 57, 0.06);
    border: 1px solid rgba(255, 0, 57, 0.15);
    border-radius: var(--radius);
    padding: 12px 16px;
    font-size: 0.88rem;
}

.msg-bubble table {
    border-collapse: collapse;
    width: 100%;
    margin: 12px 0;
    font-size: 0.88rem;
}

.msg-bubble th,
.msg-bubble td {
    border: 1px solid var(--gray-200);
    padding: 8px 12px;
    text-align: left;
}

.msg-bubble th {
    background: var(--gray-100);
    font-weight: 600;
}

.code-stream-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    margin-top: 8px;
    border-radius: var(--radius-lg);
    background: color-mix(in srgb, var(--primary) 8%, var(--bg));
    border: 1px solid color-mix(in srgb, var(--primary) 20%, transparent);
    color: var(--text-secondary);
    font-size: 0.82rem;
}
.code-stream-indicator .code-stream-size {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--primary);
}

.code-block-wrapper {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
}

.code-block-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    background: rgba(255,255,255,0.06);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    min-height: 32px;
}

.code-block-lang {
    color: var(--gray-400);
    font-size: 0.72rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.code-block-actions {
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity var(--transition);
}

.code-block-wrapper:hover .code-block-actions {
    opacity: 1;
}

.code-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-sm);
    color: var(--gray-300);
    font-size: 0.72rem;
    font-family: var(--font-primary);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.code-action-btn:hover {
    background: rgba(255,255,255,0.2);
    color: #fff;
}

.code-action-btn.copied {
    background: rgba(34, 197, 94, 0.25);
    border-color: rgba(34, 197, 94, 0.4);
    color: #4ade80;
}

.code-action-publish {
    background: rgba(92, 36, 131, 0.2);
    border-color: rgba(92, 36, 131, 0.35);
}

.code-action-publish:hover {
    background: rgba(92, 36, 131, 0.4);
}

/* Spin animation for loading */
@keyframes spin { to { transform: rotate(360deg); } }
.spin { animation: spin 1s linear infinite; }

/* --- Tool Status Indicator (shown during function/tool execution) --- */
.tool-status-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: color-mix(in srgb, var(--primary) 8%, transparent);
    border: 1px solid color-mix(in srgb, var(--primary) 20%, transparent);
    border-radius: var(--radius);
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 500;
}

.tool-status-indicator svg {
    flex-shrink: 0;
    stroke: var(--primary);
}

[data-theme="dark"] .tool-status-indicator {
    color: var(--primary-light);
}

[data-theme="dark"] .tool-status-indicator svg {
    stroke: var(--primary-light);
}

.tool-gen-counter {
    margin-left: auto;
    font-size: 0.8rem;
    font-variant-numeric: tabular-nums;
    opacity: 0.7;
}

/* Live preview of tool-generated content (HTML, CSV, etc.) */
.tool-generation-preview {
    max-height: 300px;
    overflow-y: auto;
    margin: 8px 0 0;
    padding: 12px;
    background: var(--bg-secondary, #f5f5f5);
    border: 1px solid color-mix(in srgb, var(--primary) 15%, transparent);
    border-radius: var(--radius);
    font-family: 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
    font-size: 0.78rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--text-secondary, #555);
}

.tool-generation-preview code {
    all: unset;
    font: inherit;
    color: inherit;
}

[data-theme="dark"] .tool-generation-preview {
    background: #1a1a2e;
    color: #b0b8c8;
    border-color: color-mix(in srgb, var(--primary-light) 20%, transparent);
}

/* Live rendered HTML preview iframe */
.tool-html-preview {
    width: 100%;
    height: 420px;
    border: 1px solid color-mix(in srgb, var(--primary) 20%, transparent);
    border-radius: var(--radius);
    background: #0f172a;
    margin: 8px 0 0;
}

/* xlsx/docx data preview table */
.xlsx-preview-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
    line-height: 1.4;
}
.xlsx-preview-table th,
.xlsx-preview-table td {
    padding: 6px 10px;
    border: 1px solid color-mix(in srgb, var(--primary) 15%, transparent);
    text-align: left;
    white-space: nowrap;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
}
.xlsx-preview-table th {
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 1;
}
.xlsx-preview-table tbody tr:nth-child(even) {
    background: color-mix(in srgb, var(--primary) 5%, transparent);
}
[data-theme="dark"] .xlsx-preview-table th {
    background: #334155;
}
[data-theme="dark"] .xlsx-preview-table td {
    border-color: #334155;
}
[data-theme="dark"] .xlsx-preview-table tbody tr:nth-child(even) {
    background: #1e293b;
}

/* Preview tab switcher */
.tool-preview-tabs {
    display: flex;
    gap: 0;
    margin: 8px 0 0;
    border-bottom: 1px solid var(--border-color, #e0e0e0);
}

.tool-preview-tab {
    padding: 6px 16px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary, #666);
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 500;
    transition: color 0.2s, border-color 0.2s;
}

.tool-preview-tab:hover {
    color: var(--text-primary, #333);
}

.tool-preview-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

[data-theme="dark"] .tool-preview-tabs {
    border-bottom-color: #334155;
}

[data-theme="dark"] .tool-preview-tab {
    color: #94a3b8;
}

[data-theme="dark"] .tool-preview-tab:hover {
    color: #e2e8f0;
}

[data-theme="dark"] .tool-preview-tab.active {
    color: var(--primary-light, #38bdf8);
    border-bottom-color: var(--primary-light, #38bdf8);
}

[data-theme="dark"] .tool-html-preview {
    border-color: #334155;
}

.tool-followup-text {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color, #e2e8f0);
}

/* --- Report Link (published HTML) --- */
.report-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    margin: 6px 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark, #0e7c6b));
    color: #fff !important;
    text-decoration: none !important;
    border-radius: var(--radius-md, 8px);
    font-weight: 600;
    font-size: 0.92rem;
    transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.report-link:hover {
    background: linear-gradient(135deg, var(--primary-dark, #0e7c6b), var(--primary));
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(0,0,0,0.25);
}

.report-link svg {
    flex-shrink: 0;
    stroke: #fff;
}

[data-theme="dark"] .report-link {
    background: linear-gradient(135deg, var(--primary), #0fa789);
    box-shadow: 0 2px 10px rgba(15, 167, 137, 0.3);
}

/* Auto-publish link (Grok HTML auto-save to blob) */
.auto-publish-link {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color, #e2e8f0);
}
.auto-publish-link a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark, #0e7c6b));
    color: #fff !important;
    text-decoration: none !important;
    border-radius: var(--radius-md, 8px);
    font-weight: 600;
    font-size: 0.92rem;
    transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.auto-publish-link a:hover {
    background: linear-gradient(135deg, var(--primary-dark, #0e7c6b), var(--primary));
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(0,0,0,0.25);
}

[data-theme="dark"] .report-link:hover {
    background: linear-gradient(135deg, #0fa789, var(--primary));
    box-shadow: 0 4px 16px rgba(15, 167, 137, 0.4);
}

.report-link-badge {
    display: inline-block;
    padding: 1px 6px;
    margin-left: 2px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    background: rgba(255,255,255,0.2);
    border-radius: 4px;
    vertical-align: middle;
}

.code-copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 4px 10px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-sm);
    color: var(--code-color);
    font-size: 0.72rem;
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--transition);
}

.code-block-wrapper:hover .code-copy-btn {
    opacity: 1;
}

.code-copy-btn:hover {
    background: rgba(255,255,255,0.2);
}

/* ===================================================
   Session Resume Modal
   =================================================== */
.session-resume-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    animation: fadeIn 0.2s ease;
}

.session-resume-modal {
    background: var(--card-bg, #ffffff);
    border-radius: var(--radius-xl);
    padding: 36px 32px 28px;
    max-width: 480px;
    width: 100%;
    box-shadow: var(--shadow-xl);
    animation: authFadeIn 0.35s ease-out;
    max-height: 85vh;
    overflow-y: auto;
}

[data-theme="dark"] .session-resume-modal {
    background: var(--dark-card);
    border: 1px solid var(--gray-700);
}

.session-resume-header {
    text-align: center;
    margin-bottom: 24px;
}

.session-resume-icon {
    margin-bottom: 12px;
    color: var(--primary);
}

.session-resume-header h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--dark, #111827);
    margin: 0 0 6px;
}

[data-theme="dark"] .session-resume-header h2 {
    color: var(--gray-100);
}

.session-resume-subtitle {
    font-size: 0.92rem;
    color: var(--gray-500);
    margin: 0;
}

.session-resume-actions {
    display: flex;
    justify-content: center;
}

.session-resume-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.session-resume-btn-new {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(92, 36, 131, 0.35);
    width: 100%;
    justify-content: center;
}

.session-resume-btn-new:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(92, 36, 131, 0.45);
}

.session-resume-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0 16px;
}

.session-resume-divider::before,
.session-resume-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-200);
}

[data-theme="dark"] .session-resume-divider::before,
[data-theme="dark"] .session-resume-divider::after {
    background: var(--gray-700);
}

.session-resume-divider span {
    font-size: 0.82rem;
    color: var(--gray-400);
    white-space: nowrap;
}

.session-resume-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.session-resume-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    background: var(--gray-50, #f9fafb);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.15s ease;
}

.session-resume-item:hover {
    border-color: var(--primary);
    background: rgba(92, 36, 131, 0.04);
    transform: translateX(2px);
}

[data-theme="dark"] .session-resume-item {
    background: var(--dark-mid);
    border-color: var(--gray-700);
}

[data-theme="dark"] .session-resume-item:hover {
    border-color: var(--primary);
    background: rgba(92, 36, 131, 0.08);
}

.session-resume-item-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(92, 36, 131, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.session-resume-item-info {
    flex: 1;
    min-width: 0;
}

.session-resume-item-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark, #111827);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

[data-theme="dark"] .session-resume-item-name {
    color: var(--gray-100);
}

.session-resume-item-meta {
    font-size: 0.78rem;
    color: var(--gray-400);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.session-resume-item-arrow {
    flex-shrink: 0;
    color: var(--gray-300);
    transition: color 0.15s;
}

.session-resume-item:hover .session-resume-item-arrow {
    color: var(--primary);
}

.session-resume-loading {
    text-align: center;
    padding: 16px;
    color: var(--gray-400);
    font-size: 0.88rem;
}

/* ===================================================
   Share Modal
   =================================================== */
.share-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.15s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.share-modal {
    background: var(--card-bg);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 24px;
    width: min(460px, 90vw);
    box-shadow: var(--shadow-xl);
}

[data-theme="dark"] .share-modal {
    border-color: var(--gray-700);
}

.share-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.share-modal-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark);
}

[data-theme="dark"] .share-modal-header h3 {
    color: var(--gray-100);
}

.share-modal-close {
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--gray-400);
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}

.share-modal-close:hover {
    color: var(--dark);
}

[data-theme="dark"] .share-modal-close:hover {
    color: var(--gray-100);
}

.share-modal-desc {
    font-size: 0.88rem;
    color: var(--gray-500);
    margin: 0 0 12px;
}

.share-modal-url-row {
    display: flex;
    gap: 6px;
    margin-bottom: 16px;
}

.share-modal-url {
    flex: 1;
    padding: 8px 12px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    color: var(--dark);
    outline: none;
}

[data-theme="dark"] .share-modal-url {
    background: var(--dark-mid);
    border-color: var(--gray-700);
    color: var(--gray-100);
}

.share-modal-url:focus {
    border-color: var(--primary);
}

.share-modal-copy {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--gray-600);
    transition: all var(--transition);
}

[data-theme="dark"] .share-modal-copy {
    background: var(--gray-700);
    border-color: var(--gray-600);
    color: var(--gray-300);
}

.share-modal-copy:hover {
    background: var(--gray-200);
    color: var(--dark);
}

.share-modal-actions {
    display: flex;
    justify-content: flex-end;
}

.share-modal-open {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--primary);
    color: #fff;
    border-radius: var(--radius);
    font-size: 0.88rem;
    font-weight: 500;
    text-decoration: none;
    transition: background var(--transition);
}

.share-modal-open:hover {
    background: var(--primary-dark);
}

/* ============================================
   Extracted Text Preview Modal
   ============================================ */

.extracted-text-modal {
    background: #fff;
    border-radius: 12px;
    width: min(90vw, 1100px);
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
}
[data-theme="dark"] .extracted-text-modal {
    background: #1e1e2e;
}

.extracted-text-preview {
    flex: 1;
    overflow: auto;
    padding: 0 20px 16px;
    min-height: 200px;
    max-height: 60vh;
}

.extracted-text-preview table.extracted-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    line-height: 1.4;
    white-space: nowrap;
}

.extracted-text-preview table.extracted-table th,
.extracted-text-preview table.extracted-table td {
    border: 1px solid #ddd;
    padding: 4px 8px;
    text-align: left;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
}
[data-theme="dark"] .extracted-text-preview table.extracted-table th,
[data-theme="dark"] .extracted-text-preview table.extracted-table td {
    border-color: #3a3a4d;
}

.extracted-text-preview table.extracted-table th {
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 1;
}

.extracted-text-preview table.extracted-table tr:nth-child(even) td {
    background: rgba(0,0,0,0.03);
}
[data-theme="dark"] .extracted-text-preview table.extracted-table tr:nth-child(even) td {
    background: rgba(255,255,255,0.03);
}

.extracted-text-preview table.extracted-table tr:hover td {
    background: rgba(99,102,241,0.08);
}

.extracted-text-preview h4 {
    margin: 12px 0 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.extracted-text-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 12px 20px;
    border-top: 1px solid #e5e5e5;
}
[data-theme="dark"] .extracted-text-actions {
    border-color: #3a3a4d;
}

.extracted-text-download {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    background: transparent;
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    transition: background var(--transition);
}
[data-theme="dark"] .extracted-text-download {
    border-color: #3a3a4d;
}
.extracted-text-download:hover {
    background: rgba(0,0,0,0.05);
}
[data-theme="dark"] .extracted-text-download:hover {
    background: rgba(255,255,255,0.08);
}

.extracted-text-ok {
    padding: 8px 24px;
    border: none;
    border-radius: 8px;
    background: var(--primary);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition);
}
.extracted-text-ok:hover {
    background: var(--primary-dark);
}