/* ========================================
   THEME: CSS Custom Properties
   ======================================== */

:root {
    /* Light theme (default) */
    --color-scheme: light;

    /* Background colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f7f7f7;
    --bg-tertiary: #e9ecef;
    --bg-card: #ffffff;
    --bg-input: #ffffff;
    --bg-hover: rgba(0, 0, 0, 0.05);

    /* Text colors */
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --text-inverse: #ffffff;

    /* Border colors */
    --border-color: #dee2e6;
    --border-color-light: #e9ecef;

    /* Brand colors (unchanged in both themes) */
    --brand-primary: #1b6ec2;
    --brand-primary-hover: #1561b0;
    --brand-accent: #1db954;

    /* Semantic colors */
    --color-success: #198754;
    --color-danger: #dc3545;
    --color-warning: #ffc107;
    --color-info: #0dcaf0;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);

    /* Conversation bubbles */
    --bubble-user: var(--brand-primary);
    --bubble-assistant: var(--bg-tertiary);
    --bubble-assistant-border: var(--border-color);

    /* Code blocks */
    --code-bg: #f8f9fa;
    --code-text: #c02d76;

    /* Scrollbar */
    --scrollbar-track: #f1f1f1;
    --scrollbar-thumb: #c1c1c1;
    --scrollbar-thumb-hover: #a1a1a1;
}

/* ========================================
   DARK THEME - Both selectors for compatibility
   ======================================== */

[data-bs-theme="dark"],
[data-theme="dark"] {
    --color-scheme: dark;

    /* Background colors */
    --bg-primary: #212529;
    --bg-secondary: #2b3035;
    --bg-tertiary: #343a40;
    --bg-card: #2b3035;
    --bg-input: #343a40;
    --bg-hover: rgba(255, 255, 255, 0.08);

    /* Text colors */
    --text-primary: #dee2e6;
    --text-secondary: #adb5bd;
    --text-muted: #6c757d;
    --text-inverse: #212529;

    /* Border colors */
    --border-color: #495057;
    --border-color-light: #343a40;

    /* Shadows (more subtle in dark mode) */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);

    /* Conversation bubbles */
    --bubble-assistant: #343a40;
    --bubble-assistant-border: #495057;

    /* Code blocks */
    --code-bg: #343a40;
    --code-text: #ff79c6;

    /* Scrollbar */
    --scrollbar-track: #2b3035;
    --scrollbar-thumb: #495057;
    --scrollbar-thumb-hover: #6c757d;
}

/* Apply color scheme for native UI elements */
html {
    color-scheme: var(--color-scheme);
}

/* ========================================
   BASE STYLES WITH THEME VARIABLES
   ======================================== */

html, body {
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    height: 100%;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Only disable overflow on larger screens where layout handles it */
@media (min-width: 641px) {
    html, body {
        overflow: hidden;
    }
}

/* Enable scrolling on mobile */
@media (max-width: 640.98px) {
    html, body {
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* Disable transitions on initial load to prevent flash */
html.no-transitions * {
    transition: none !important;
}

h1:focus {
    outline: none;
}

a, .btn-link {
    color: var(--brand-primary);
}

a:hover {
    color: var(--brand-primary-hover);
}

.btn-primary {
    color: #fff;
    background-color: #1b6ec2;
    border-color: #1861ac;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

/* Ensure focus is visible in both themes */
:focus-visible {
    outline: 2px solid var(--brand-primary);
    outline-offset: 2px;
}

[data-theme="dark"] :focus-visible {
    outline-color: #74c0fc;
}

.content {
    padding-top: 1.5rem;
}

/* Cards */
.card {
    background-color: var(--bg-card);
    border-color: var(--border-color);
}

/* Form inputs */
.form-control {
    background-color: var(--bg-input);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.form-control:focus {
    background-color: var(--bg-input);
    border-color: var(--brand-primary);
    color: var(--text-primary);
}

.form-control::placeholder {
    color: var(--text-muted);
}

/* Tables */
.table {
    --bs-table-bg: var(--bg-primary);
    --bs-table-color: var(--text-primary);
    --bs-table-border-color: var(--border-color);
}

.table-hover > tbody > tr:hover {
    --bs-table-hover-bg: var(--bg-hover);
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

#blazor-error-ui {
    color-scheme: light only;
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.loading-progress {
    position: absolute;
    display: block;
    width: 8rem;
    height: 8rem;
    inset: 20vh 0 auto 0;
    margin: 0 auto 0 auto;
}

    .loading-progress circle {
        fill: none;
        stroke: #e0e0e0;
        stroke-width: 0.6rem;
        transform-origin: 50% 50%;
        transform: rotate(-90deg);
    }

        .loading-progress circle:last-child {
            stroke: #1b6ec2;
            stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
            transition: stroke-dasharray 0.05s ease-in-out;
        }

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

    .loading-progress-text:after {
        content: var(--blazor-load-percentage-text, "Loading");
    }

code {
    color: var(--code-text);
    background-color: var(--code-bg);
}

/* Scrollbars */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* Nested scrollable areas - prevent scroll trapping */
.scrollable-list {
    max-height: 300px;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
}

/* Clickable table rows for failed tracks */
.cursor-pointer {
    cursor: pointer;
}

.cursor-pointer:hover {
    filter: brightness(0.95);
}

.scrollable-list::-webkit-scrollbar {
    width: 8px;
}

.scrollable-list::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
    border-radius: 4px;
}

.scrollable-list::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
}

.scrollable-list::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

/* Citation link hover effects */
.citation-link:hover {
    background-color: var(--bg-tertiary) !important;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.citation-link:hover .citation-number {
    transform: scale(1.1);
}

/* Inline superscript citation links */
.citation-sup {
    font-size: 0.7em;
    vertical-align: super;
    line-height: 0;
    margin-left: 1px;
}

.citation-link-inline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    background: linear-gradient(135deg, #1db954, #169c46);
    color: white !important;
    border-radius: 50%;
    font-size: 10px;
    font-weight: bold;
    text-decoration: none !important;
    transition: all 0.2s ease;
}

.citation-link-inline:hover {
    transform: scale(1.2);
    box-shadow: 0 2px 6px rgba(29, 185, 84, 0.4);
}

/* Citation footnotes section */
.citations-footnotes {
    font-size: 0.85em;
    border-color: var(--border-color, rgba(0,0,0,0.1)) !important;
}

.citations-list {
    list-style-type: decimal;
}

.citation-footnote {
    line-height: 1.5;
}

.citation-text {
    color: var(--text-primary, inherit);
}

.citation-play-btn {
    display: inline-block;
    color: #ff5500;
    text-decoration: none;
    font-size: 1.1em;
    vertical-align: middle;
    transition: all 0.2s ease;
}

.citation-play-btn:hover {
    color: #ff7700;
    transform: scale(1.2);
}

.citation-artist {
    font-weight: 600;
    color: var(--text-primary, inherit);
}

.citation-title {
    font-style: italic;
    color: var(--text-secondary, #6c757d);
}

.citation-footnote-link:hover .citation-artist,
.citation-footnote-link:hover .citation-title {
    color: #1db954;
}

/* Answer content styling */
.answer-content p {
    margin-bottom: 0.75rem;
}

.answer-content ul, .answer-content ol {
    margin-bottom: 0.75rem;
    padding-left: 1.25rem;
}

.answer-content strong {
    color: var(--text-primary);
}

/* Stats cards container */
.stat-cards-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Stats cards */
.stat-card {
    position: relative;
    padding: 1.5rem 0.75rem;
    border-radius: 16px;
    color: white;
    text-align: center;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    min-height: 140px;
    min-width: 120px;
    flex: 1 1 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
    pointer-events: none;
}

.stat-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.stat-value {
    font-size: clamp(1.1rem, 2vw, 2rem);
    font-weight: 700;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    width: 100%;
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 0.25rem;
}

.stat-card-purple {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.stat-card-teal {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    box-shadow: 0 4px 15px rgba(17, 153, 142, 0.4);
}

.stat-card-orange {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    box-shadow: 0 4px 15px rgba(245, 87, 108, 0.4);
}

.stat-card-pink {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.4);
}

.stat-card-cyan {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    box-shadow: 0 4px 15px rgba(250, 112, 154, 0.4);
}

/* Mobile responsive - stat cards */
@media (max-width: 640.98px) {
    .stat-cards-row {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .stat-card {
        flex: 1 1 calc(50% - 0.25rem);
        min-width: calc(50% - 0.25rem);
        max-width: calc(50% - 0.25rem);
        padding: 1rem 0.5rem;
        min-height: 100px;
    }

    .stat-icon {
        font-size: 1.25rem;
        margin-bottom: 0.25rem;
    }

    .stat-value {
        font-size: 1rem;
    }

    .stat-label {
        font-size: 0.7rem;
    }
}

/* ========================================
   CUSTOM COMPONENT OVERRIDES FOR DARK MODE
   Bootstrap 5.3 handles most dark mode styling natively
   via data-bs-theme="dark". These are only for custom elements.
   ======================================== */

/* Conversation bubbles - custom styling needed */
[data-bs-theme="dark"] .bg-light {
    background-color: var(--bg-tertiary) !important;
}

/* Stat cards - reduce shadow intensity in dark mode */
[data-bs-theme="dark"] .stat-card {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

[data-bs-theme="dark"] .stat-card:hover {
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
}

/* Smooth theme transitions */
body,
.card,
.form-control,
.table,
.modal-content,
.btn,
.alert,
.dropdown-menu {
    transition:
        background-color 0.3s ease,
        border-color 0.3s ease,
        color 0.3s ease,
        box-shadow 0.3s ease;
}

/* ========================================
   Microsoft Sign-In Button
   ======================================== */

.btn-microsoft {
    background-color: #2f2f2f;
    color: #ffffff;
    border: 1px solid #2f2f2f;
    font-family: 'Segoe UI', system-ui, sans-serif;
    font-size: 15px;
    font-weight: 600;
}

.btn-microsoft:hover {
    background-color: #1a1a1a;
    color: #ffffff;
    border-color: #1a1a1a;
}

/* Dark mode: white background */
[data-bs-theme="dark"] .btn-microsoft,
[data-theme="dark"] .btn-microsoft {
    background-color: #ffffff;
    color: #5e5e5e;
    border: 1px solid #8c8c8c;
}

[data-bs-theme="dark"] .btn-microsoft:hover,
[data-theme="dark"] .btn-microsoft:hover {
    background-color: #f0f0f0;
    color: #5e5e5e;
    border-color: #8c8c8c;
}