:root,
[data-theme="light"] {
    --bg: #f8f7f4;
    --bg-card: #ffffff;
    --border: rgba(0, 0, 0, 0.08);
    --text: #1a1a1a;
    --text-muted: #6b6b6b;
    --accent: #008f72;
    --accent-dim: rgba(0, 143, 114, 0.12);
    --prototype: #5c4dbb;
    --prototype-dim: rgba(92, 77, 187, 0.12);
    --tool: #d94a2b;
    --tool-dim: rgba(217, 74, 43, 0.12);
    --analysis: #0d9488;
    --analysis-dim: rgba(13, 148, 136, 0.12);
    --grid-line: rgba(0, 0, 0, 0.03);
    --card-hover-border: rgba(0, 0, 0, 0.12);
    --card-hover-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] {
    --bg: #0c0c0e;
    --bg-card: #1a1a1f;
    --border: rgba(255, 255, 255, 0.06);
    --text: #f0f0f2;
    --text-muted: #8b8b94;
    --accent: #00d4aa;
    --accent-dim: rgba(0, 212, 170, 0.15);
    --prototype: #9d8aff;
    --prototype-dim: rgba(124, 92, 255, 0.2);
    --tool: #ff6b4a;
    --tool-dim: rgba(255, 107, 74, 0.2);
    --analysis: #2dd4bf;
    --analysis-dim: rgba(45, 212, 191, 0.2);
    --grid-line: rgba(255, 255, 255, 0.02);
    --card-hover-border: rgba(255, 255, 255, 0.12);
    --card-hover-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: 'Syne', sans-serif;
    line-height: 1.5;
    overflow-x: hidden;
}

/* Subtle grid background */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 4rem;
    position: relative;
    z-index: 1;
}

/* Header */
header {
    margin-bottom: 3.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

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

/* Theme toggle */
.theme-toggle {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    transition: border-color 0.2s, color 0.2s;
}

.theme-toggle:hover {
    color: var(--text);
    border-color: var(--accent);
}

.theme-toggle svg {
    width: 16px;
    height: 16px;
    opacity: 0.8;
}

/* Theme icon visibility */
.theme-icon-dark {
    display: none;
}

[data-theme="dark"] .theme-icon-light {
    display: none;
}

[data-theme="dark"] .theme-icon-dark {
    display: inline;
}

@media (max-width: 640px) {
    .theme-label {
        display: none;
    }

    .theme-toggle {
        gap: 0;
        padding: 0.5rem;
    }
}

.eyebrow {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
}

h1 {
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    max-width: 700px;
}

.subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 520px;
    font-weight: 400;
}

/* Bento grid */
.bento {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
    min-height: 140px;
}

.card:hover {
    border-color: var(--card-hover-border);
    transform: translateY(-2px);
    box-shadow: var(--card-hover-shadow);
}

/* Card sizes */
.card.span-4 { grid-column: span 4; }
.card.span-6 { grid-column: span 6; }
.card.span-8 { grid-column: span 8; }
.card.span-12 { grid-column: span 12; }
.card.tall { min-height: 200px; }

@media (max-width: 900px) {
    .card.span-4, .card.span-6, .card.span-8 { grid-column: span 12; }
}

.tag {
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.35rem 0.6rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    width: fit-content;
}

.tag-prototype {
    background: var(--prototype-dim);
    color: var(--prototype);
}

.tag-tool {
    background: var(--tool-dim);
    color: var(--tool);
}

.tag-analysis {
    background: var(--analysis-dim);
    color: var(--analysis);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.card-description {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.55;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-arrow {
    margin-top: 1rem;
    font-size: 1.25rem;
    color: var(--text-muted);
    opacity: 0.6;
    transition: transform 0.2s;
}

.card:hover .card-arrow {
    transform: translateX(4px);
    color: var(--accent);
}

/* Section labels */
.section-label {
    grid-column: 1 / -1;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-top: 2rem;
    margin-bottom: 0.5rem;
    padding-left: 0.25rem;
}

.section-label:first-of-type {
    margin-top: 0;
}

/* Page-specific: Compare Exported Tracks */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 1rem;
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--accent);
}

.guide-page .back-link {
    margin-bottom: 0.5rem;
}

.page-description {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 640px;
    line-height: 1.6;
    margin-bottom: 2.5rem;
}

.upload-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.upload-box {
    border: 2px dashed var(--border);
    padding: 1.5rem;
    text-align: center;
    background: var(--bg-card);
    border-radius: 12px;
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    position: relative;
}

.upload-box:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--card-hover-shadow);
}

.upload-box.has-file {
    border-color: var(--accent);
    border-style: solid;
}

.upload-box h3 {
    margin: 0 0 1rem 0;
    color: var(--text);
    font-size: 1.1rem;
    font-weight: 700;
}

.file-input-container {
    position: relative;
    width: 100%;
}

.file-input {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    cursor: pointer;
    z-index: 2;
}

.file-input-button {
    display: inline-block;
    background: var(--accent);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    font-weight: 500;
    transition: background-color 0.2s;
}

.file-input-container:hover .file-input-button {
    opacity: 0.9;
}

.file-name {
    margin-top: 0.75rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.analyze-btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Syne', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-bottom: 2rem;
}

.analyze-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--card-hover-shadow);
}

.analyze-btn:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.6;
}

.results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.result-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: 12px;
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.result-box:hover {
    border-color: var(--card-hover-border);
    transform: translateY(-2px);
    box-shadow: var(--card-hover-shadow);
}

.result-box h3 {
    margin: 0 0 1.25rem 0;
    color: var(--text);
    font-size: 1.1rem;
    font-weight: 700;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.property {
    margin: 1rem 0;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.property.match {
    background: var(--accent-dim);
}

.property.different {
    background: var(--tool-dim);
}

.property-name {
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.property-value {
    color: var(--text-muted);
    word-break: break-word;
    font-size: 0.9rem;
}

/* Page-specific: Cost Estimator */
.input-container,
.results-container {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.input-container .column,
.results-container .column {
    flex: 1;
    min-width: 280px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: 12px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-container .column:hover,
.results-container .column:hover {
    border-color: var(--card-hover-border);
    box-shadow: var(--card-hover-shadow);
}

.shared-inputs {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text);
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group select,
.form-group input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    box-sizing: border-box;
}

.form-group select:focus,
.form-group input:focus {
    outline: none;
    border-color: var(--accent);
}

.estimate-btn {
    display: block;
    width: 200px;
    margin: 0 auto 2rem;
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Syne', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.estimate-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-hover-shadow);
}

.cost-page h2 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.result-row {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.result-row:last-child {
    margin-bottom: 0;
}

.result-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text);
    font-size: 0.9rem;
}

.result-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.result-row.important-result.peak {
    background: var(--accent-dim);
    border-left: 4px solid var(--accent);
}

.tooltip {
    position: relative;
    display: inline-block;
    margin-left: 0.25rem;
    cursor: help;
    color: var(--text-muted);
    font-weight: 400;
}

.tooltip-text {
    visibility: hidden;
    width: 260px;
    background: var(--text);
    color: var(--bg);
    text-align: left;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    position: absolute;
    z-index: 10;
    bottom: 125%;
    left: 50%;
    margin-left: -130px;
    opacity: 0;
    transition: opacity 0.2s;
    font-size: 0.8rem;
    font-weight: 400;
    font-family: 'Syne', sans-serif;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* Page-specific: Podcast Guide AI */
.guide-page .form-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.guide-page .input-group {
    margin-bottom: 1.5rem;
}

.guide-page .input-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.guide-page input[type="password"],
.guide-page textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--bg);
    color: var(--text);
    font-family: 'Syne', sans-serif;
    transition: border-color 0.2s;
}

.guide-page input[type="password"]:focus,
.guide-page textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.guide-page .generate-btn {
    background: var(--prototype);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    font-family: 'Syne', sans-serif;
    transition: transform 0.2s, box-shadow 0.2s;
}

.guide-page .generate-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--card-hover-shadow);
}

.guide-page .generate-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.guide-page .error-box {
    color: #dc2626;
    font-size: 0.9rem;
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(220, 38, 38, 0.08);
    border-radius: 8px;
    border: 1px solid rgba(220, 38, 38, 0.2);
}

/* Guide results - accordion sections */
.guide-results {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.guide-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.guide-section:hover {
    border-color: var(--card-hover-border);
}

.guide-section.is-open {
    box-shadow: var(--card-hover-shadow);
}

.guide-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    cursor: pointer;
    font-weight: 700;
    font-size: 1rem;
    color: var(--text);
    transition: background-color 0.2s;
}

.guide-section-header:hover {
    background: var(--bg);
}

.guide-section-header .section-icon {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 700;
    margin-right: 0.75rem;
    flex-shrink: 0;
    background: var(--prototype-dim);
    color: var(--prototype);
}

.guide-section-header .section-title {
    flex: 1;
}

.guide-section-header .expand-icon {
    font-size: 1.25rem;
    color: var(--text-muted);
    transition: transform 0.2s;
}

.guide-section.is-open .expand-icon {
    transform: rotate(180deg);
}

.guide-section-body {
    padding: 0 1.25rem 1.25rem;
    display: none;
}

.guide-section.is-open .guide-section-body {
    display: block;
}

.guide-tip {
    display: flex;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    transition: background-color 0.2s;
}

.guide-tip:hover {
    background: var(--prototype-dim);
}

.guide-tip:last-child {
    margin-bottom: 0;
}

.guide-tip-pill {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    background: var(--prototype-dim);
    color: var(--prototype);
    flex-shrink: 0;
    align-self: flex-start;
}

.guide-tip-text {
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.5;
}

.guide-tip-text strong {
    color: var(--text);
}

.guide-fallback {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.guide-raw-content pre {
    margin: 0;
    font-family: 'JetBrains Mono', monospace;
}

/* Page-specific: Data Analysis */
.data-analysis-page .page-description {
    margin-bottom: 2.5rem;
}

.data-analysis-main {
    margin-top: 0;
}

.data-analysis-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
}

.data-section {
    margin-bottom: 3rem;
}

.data-section:last-of-type {
    margin-bottom: 0;
}

.data-section-border {
    padding-top: 2.5rem;
    border-top: 1px solid var(--border);
}

.data-section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.data-grid {
    display: grid;
    gap: 1.5rem;
}

.data-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 900px) {
    .data-grid-2 {
        grid-template-columns: 1fr;
    }
}

.data-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.data-card-wide {
    padding: 1.5rem;
}

.data-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 1rem;
}

.data-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.data-table {
    width: 100%;
    min-width: 100%;
    border-collapse: collapse;
}

.data-table-full {
    min-width: 600px;
}

.data-table-header th {
    text-align: left;
    padding: 0.75rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: var(--bg);
    border-bottom: 2px solid var(--border);
}

.data-th-first {
    border-radius: 8px 0 0 0;
}

.data-th-right {
    text-align: right;
}

.data-th-last {
    border-radius: 0 8px 0 0;
}

.data-table td {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    color: var(--text);
    border-bottom: 1px solid var(--border);
    transition: background-color 0.2s;
}

.data-table tbody tr:hover td {
    background: var(--bg);
}

.data-td-right {
    text-align: right;
}

.data-td-left {
    text-align: left;
}

.data-rank-1 { background: var(--prototype-dim); }
.data-rank-2 { background: var(--analysis-dim); }
.data-rank-3 { background: var(--accent-dim); }
.data-rank-4 { background: var(--tool-dim); }
.data-rank-5 { background: rgba(239, 68, 68, 0.12); }

[data-theme="dark"] .data-rank-5 {
    background: rgba(239, 68, 68, 0.2);
}

.data-badge-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.data-badge-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.data-badge {
    padding: 0.2rem 0.5rem;
    font-size: 0.7rem;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
    border-radius: 9999px;
    white-space: nowrap;
}

.data-badge-supported {
    background: var(--accent-dim);
    color: var(--accent);
}

.data-badge-unsupported {
    background: var(--tool-dim);
    color: var(--tool);
}

.data-insights-box {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.data-insights-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 1rem;
}

.data-insights-list {
    list-style: disc;
    padding-left: 1.25rem;
    margin: 0;
}

.data-insights-list li {
    margin-bottom: 0.75rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

.data-insights-list li:last-child {
    margin-bottom: 0;
}

.data-highlight-warn {
    color: var(--tool);
}