/* Full-width baseline chart */
.baseline-fullwidth {
    width: 100%;
    margin: 40px 0 0 0;
    padding: 0;
}
.baseline-fullwidth h3 {
    text-align: center;
    font-size: 1.6rem;
    margin-bottom: 18px;
}
.baseline-fullwidth .chart-container.large {
    max-width: 900px;
    margin: 0 auto;
}

/* Fullscreen button for charts */
.fullscreen-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(102,126,234,0.12);
    border: none;
    border-radius: 6px;
    font-size: 1.3em;
    padding: 4px 10px;
    cursor: pointer;
    z-index: 10;
    transition: background 0.2s;
}
.fullscreen-btn:hover {
    background: rgba(102,126,234,0.25);
}
/* Import base styles from parent SSML demo */
/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #2d3748;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles - Similar to SSML demo */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 60px 0;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.header-content {
    max-width: 800px;
    margin: 0 auto;
}
.header-logo {
    display: block;
    margin: 0 auto 22px;
    /* Let width drive scaling, keep intrinsic aspect ratio */
    width: 100%;
    max-width: clamp(240px, 50vw, 540px);
    height: auto;
    /* Cap height as a secondary safety */
    max-height: clamp(120px, 28vh, 280px);
    filter: drop-shadow(0 4px 10px rgba(0,0,0,0.12));
    transition: transform 0.35s ease, filter 0.35s ease;
    padding-right: 0; /* Remove hard right padding so it can truly center */
}

.header-logo:hover {
    transform: scale(1.05);
}

.title {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    line-height: 1.2;
}

.subtitle {
    font-size: 1.3rem;
    color: #4a5568;
    margin-bottom: 30px;
    font-weight: 400;
}

.paper-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.conference {
    background: linear-gradient(135deg, #f6ad55, #ed8936);
    color: white;
    padding: 8px 20px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.9rem;
}

.paper-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #f6ad55;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 20px;
    border: 2px solid #f6ad55;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.paper-link:hover {
    background: #f6ad55;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(246, 173, 85, 0.3);
}

.resource-links {
    margin-top: 32px;
    padding: 22px 26px;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(6px);
    border-radius: 14px;
    border: 1px solid rgba(226, 232, 240, 0.2);
}

.resource-category + .resource-category {
    margin-top: 24px;
}

.resource-category h3 {
    font-size: 1rem;
    font-weight: 600;
    color: #4a5568;
    margin-bottom: 16px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
}

.resource-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.94);
    color: #2d3748;
    text-decoration: none;
    border-radius: 12px;
    border: 1px solid rgba(226, 232, 240, 0.9);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    font-size: 0.95rem;
    font-weight: 550;
    position: relative;
    overflow: hidden;
}

.resource-link::before {
    content: '';
    position: absolute;
    inset: 0;
    left: 0;
    width: 4px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    opacity: 0.7;
}

.resource-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.18);
}

.resource-link.github::before {
    background: #24292e;
    opacity: 0.7;
}

.resource-link.hf-model::before {
    background: #ffcc4d;
    opacity: 0.9;
}

.resource-link.pypi::before {
    background: linear-gradient(135deg, #306998, #ffd43b);
    opacity: 0.8;
}

.resource-link img.hf-logo {
    width: 18px;
    height: 18px;
    display: inline-block;
}

.fp-iframe {
    border: 1px solid lightgray;
    width: 100%;
    min-height: 500px;
    margin-top: 40px;
}

/* Navigation Styles */
.nav {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-links {
    display: flex;
    justify-content: center;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: #4a5568;
    text-decoration: none;
    font-weight: 500;
    padding: 10px 20px;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}

/* Main Content */
.main {
    background: white;
    margin-top: 40px;
    border-radius: 20px 20px 0 0;
    box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.section {
    padding: 80px 0;
}

.section:not(:last-child) {
    border-bottom: 1px solid #e2e8f0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: #2d3748;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 2px;
}

/* Overview Section */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.overview-card {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #f7fafc;
}

.overview-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.card-icon {
    font-size: 3rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.overview-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #2d3748;
}

.overview-card p {
    color: #4a5568;
    line-height: 1.7;
}

/* Architecture Section Styles */
.architecture-description {
    text-align: center;
    margin-bottom: 50px;
}

.architecture-intro {
    font-size: 1.2rem;
    color: #4a5568;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
}

.architecture-diagram-container {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 40px;
    border: 1px solid #e2e8f0;
}

.architecture-svg {
    width: 100%;
    height: auto;
    max-width: 1000px;
}

/* SVG Component Styles */
.input-box, .output-box {
    fill: #f7fafc;
    stroke: #cbd5e0;
    stroke-width: 2;
}

.component-box {
    fill: #ffffff;
    stroke: #e2e8f0;
    stroke-width: 2;
    cursor: pointer;
    transition: all 0.3s ease;
}

.component-box:hover {
    fill: #f0f8ff;
    stroke: #667eea;
    stroke-width: 3;
}

.component-box.active {
    fill: #e6f3ff;
    stroke: #667eea;
    stroke-width: 3;
}

/* Frozen secondary pathway modules (semantic tokenizer, speaker emb, ref mel) */
.frozen-box {
    fill: #f7f7f9;
    stroke: #d2d6dc;
    stroke-dasharray: 4 4;
}

.frozen-swatch {
    fill: #f7f7f9;
    stroke: #d2d6dc;
    stroke-dasharray: 4 4;
}

.llm-component.active {
    fill: #fff5f5;
    stroke: #e53e3e;
}

.flow-component.active {
    fill: #f0fff4;
    stroke: #38a169;
}

.hifigan-component.active {
    fill: #faf5ff;
    stroke: #805ad5;
}

.component-text, .component-title {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 600;
    fill: #2d3748;
}

.component-subtitle, .component-detail {
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    fill: #4a5568;
}

    .chart-container.large {
        max-width: 640px;
        margin: 0 auto;
    }
    .chart-container.large canvas {
        width: 100% !important;
        height: auto !important;
    }
    .metric-card h3 {
        margin-bottom: 10px;
    }
    .metric-card .chart-container {
        padding: 6px 4px;
    }
.component-subtext {
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    fill: #718096;
}

.finetune-indicator {
    fill: #cbd5e0;
    stroke: #a0aec0;
    stroke-width: 2;
    transition: all 0.3s ease;
}

.finetune-indicator.active {
    /* Bright green to clearly indicate fine-tuned modules */
    fill: #10b981; /* emerald-500 */
    stroke: #059669; /* emerald-600 */
}

.finetune-indicator.inactive {
    fill: #e2e8f0;
    stroke: #a0aec0;
    stroke-dasharray: 2 2;
}

.arrow {
    stroke: #667eea;
    stroke-width: 2;
    fill: none;
}

.cond-arrow {
    stroke-dasharray: 5 4;
    stroke: #9466ea;
}

.legend-title {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 600;
    fill: #2d3748;
}

.legend-text {
    font-family: 'Inter', sans-serif;
    font-size: 12px;
    fill: #4a5568;
}

/* Component Info Panel */
.component-info-panel {
    background: #f8fafc;
    border-radius: 12px;
    padding: 30px;
    border: 1px solid #e2e8f0;
    min-height: 150px;
}

.info-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 15px;
}

.info-content p {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 10px;
}

/* Interactive Demo Section */
.demo-text-section {
    text-align: center;
    margin-bottom: 50px;
}

.demo-text-section h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 20px;
}

/* Language Selector */
.language-selector {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.language-switch {
    display: flex;
    background: white;
    border-radius: 12px;
    padding: 6px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
}

.language-switch input[type="radio"] {
    display: none;
}

.language-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    color: #4a5568;
    position: relative;
}

.language-option:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
}

.language-switch input[type="radio"]:checked + .language-option {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.flag {
    font-size: 1.2rem;
}

.lang-name {
    font-size: 1rem;
    min-width: 60px;
}

.text-sample {
    background: white;
    padding: 25px;
    border-radius: 12px;
    font-style: italic;
    color: #4a5568;
    border-left: 4px solid #667eea;
    margin: 0 auto;
    max-width: 800px;
    font-size: 1.1rem;
    line-height: 1.7;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

/* Fine-tuning Controls */
.finetuning-controls {
    background: #f8fafc;
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 50px;
    border: 1px solid #e2e8f0;
}

.finetuning-controls h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 30px;
    text-align: center;
}

.control-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.control-item {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.control-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.control-label {
    display: flex;
    align-items: center;
    font-weight: 600;
    color: #2d3748;
    cursor: pointer;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.component-toggle {
    display: none;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid #cbd5e0;
    border-radius: 4px;
    margin-right: 12px;
    position: relative;
    transition: all 0.3s ease;
}

.component-toggle:checked + .checkbox-custom {
    background: #667eea;
    border-color: #667eea;
}

.component-toggle:checked + .checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: bold;
    font-size: 12px;
}

.control-description {
    color: #718096;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-left: 32px;
}

/* Prompt Audio Section */
.prompt-audio-section {
    text-align: center;
    margin: 50px 0;
}

.prompt-audio-section h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 20px;
}

.prompt-description {
    color: #4a5568;
    font-size: 1.1rem;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto 30px;
}

.prompt-audio-container {
    display: flex;
    justify-content: center;
}

.prompt-audio-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
    border-top: 4px solid #f6ad55;
    max-width: 500px;
    width: 100%;
}

.prompt-audio-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.prompt-audio-card h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: #f6ad55;
}

.prompt-info {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
}

.prompt-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    background: #fed7d7;
    color: #c53030;
}

.prompt-badge.neutral {
    background: #e2e8f0;
    color: #4a5568;
}

.prompt-player {
    width: 100%;
    margin-bottom: 15px;
    border-radius: 8px;
    outline: none;
}

/* Inline (subtle) prompt styles placed near the sample text */
.prompt-inline {
    display: flex;
    justify-content: center;
    margin-top: 18px;
}

.prompt-inline-card {
    background: rgba(255,255,255,0.9);
    border-radius: 10px;
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid rgba(226,232,240,0.8);
    max-width: 720px;
    width: 100%;
}

.prompt-inline-meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
    color: #4a5568;
    font-weight: 600;
    min-width: 110px;
}

.prompt-inline-meta i { color: #f6ad55; }
.prompt-inline-note { font-weight: 500; color: #718096; font-size: 12px; }

.prompt-player { max-width: 420px; }

/* Audio Grid */
.audio-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
}

.audio-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.audio-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.baseline-card {
    border-top: 4px solid #e53e3e;
}

.dynamic-card {
    border-top: 4px solid #667eea;
}

.audio-card h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.baseline-card h4 {
    color: #e53e3e;
}

.dynamic-card h4 {
    color: #667eea;
}

.quality-indicators {
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.quality-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.quality-badge.poor {
    background: #fed7d7;
    color: #c53030;
}

.quality-badge.good {
    background: #c6f6d5;
    color: #2f855a;
}

.quality-badge.excellent {
    background: #bee3f8;
    color: #2b6cb0;
}

.quality-badge.neutral {
    background: #e2e8f0;
    color: #4a5568;
}

.audio-player {
    width: 100%;
    margin-bottom: 15px;
    border-radius: 8px;
    outline: none;
}

.audio-description {
    color: #718096;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Research Notes and Footnotes */
.research-notes {
    margin-top: 40px;
    padding: 20px;
    background: #f8fafc;
    border-radius: 12px;
    border-left: 4px solid #cbd5e0;
}

.footnote {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.9rem;
    line-height: 1.6;
}

.footnote-marker {
    color: #667eea;
    font-weight: 600;
    font-size: 1rem;
    flex-shrink: 0;
}

.footnote-text {
    color: #4a5568;
}

.inline-link {
    color: #667eea;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.inline-link:hover {
    color: #764ba2;
}

/* Interactive Results Table (below footnote) */
.results-table-card {
    margin-top: 22px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    box-shadow: 0 4px 18px rgba(0,0,0,0.06);
    padding: 22px 20px;
}
.results-table-title {
    text-align: center;
    font-size: 1.35rem;
    margin-bottom: 6px;
}
.results-table-subtitle {
    text-align: center;
    color: #4a5568;
    font-size: 0.98rem;
    margin-bottom: 16px;
}
.symbols-legend {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    justify-content: center;
    color: #4a5568;
    font-size: 0.9rem;
    margin-bottom: 12px;
}
.legend-item { display: inline-flex; align-items: center; gap: 6px; }
.legend-swatch { display: inline-flex; width: 20px; justify-content: center; font-weight: 700; color: #2d3748; }
.legend-circle { color: #475569; }
.legend-plus { color: #10b981; }
.legend-minus { color: #a0aec0; }

.table-scroll { overflow-x: auto; }
.metrics-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
    margin-top: 8px;
}
.metrics-table thead th {
    position: sticky;
    top: 0;
    background: #f8fafc;
    color: #2d3748;
    padding: 10px 8px;
    border-bottom: 1px solid #e2e8f0;
    white-space: nowrap;
}
.metrics-table tbody td {
    padding: 10px 8px;
    border-bottom: 1px solid #f1f5f9;
    white-space: nowrap;
}
.metrics-table tbody tr:nth-child(2n) { background: #fafafa; }
.metrics-table tbody tr.highlight {
    background: #f0f7ff !important;
    box-shadow: inset 0 0 0 2px rgba(102,126,234,0.35);
}
.metrics-table .subhead { color: #64748b; font-weight: 600; text-align: center; }
.metrics-table .mono-head { background: #f1f5f9; font-weight: 700; }
.metrics-table .bili-head { background: #eef2ff; font-weight: 700; }
.results-table-caption { color: #64748b; font-size: 0.85rem; margin-top: 10px; text-align: center; }

/* Evaluation Results Section */
.results-overview {
    text-align: center;
    margin-bottom: 50px;
}

.results-intro {
    font-size: 1.2rem;
    color: #4a5568;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.metric-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
}

.metric-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 20px;
    text-align: center;
}

.chart-container {
    position: relative;
    height: 300px;
}

.chart-container canvas {
    max-width: 100%;
    height: auto;
}

/* Data Efficiency Analysis */
.efficiency-analysis {
    background: #f8fafc;
    padding: 40px;
    border-radius: 16px;
    margin-bottom: 50px;
    border: 1px solid #e2e8f0;
}

.efficiency-analysis h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 20px;
    text-align: center;
}

.efficiency-intro {
    text-align: center;
    color: #4a5568;
    margin-bottom: 30px;
    font-size: 1.1rem;
    line-height: 1.6;
}

.efficiency-chart-container {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

/* Key Findings */
.key-findings h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 30px;
    text-align: center;
}

.findings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.finding-item {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.finding-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.finding-icon {
    font-size: 2.5rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.finding-item h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 15px;
}

.finding-item p {
    color: #4a5568;
    line-height: 1.6;
}

/* Footer Styles */
.footer {
    background: #2d3748;
    color: white;
    padding: 50px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-main {
    flex: 1;
    max-width: 800px;
}

.authors {
    font-size: 1.1rem;
    margin-bottom: 15px;
    line-height: 1.6;
}

.author-highlight {
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.author-highlight:hover {
    color: #764ba2;
    text-decoration: underline;
}

.affiliations {
    font-size: 0.95rem;
    color: #a0aec0;
    margin-bottom: 15px;
    line-height: 1.5;
}

.copyright {
    font-size: 0.9rem;
    color: #a0aec0;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: flex-end;
}

.footer-link {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.footer-link:hover {
    color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    .title {
        font-size: 2.2rem;
    }
    
    .subtitle {
        font-size: 1.1rem;
    }
    
    .nav-links {
        gap: 20px;
        flex-wrap: wrap;
    }
    
    .nav-link {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .audio-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .control-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .findings-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .architecture-diagram-container {
        padding: 20px;
    }
    
    .language-switch {
        flex-direction: column;
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
    }
    
    .language-option {
        justify-content: center;
        padding: 15px 20px;
    }

    .resource-links {
        margin-top: 24px;
        padding: 18px;
    }

    .resource-grid {
        gap: 12px;
    }

    .resource-link {
        padding: 10px 14px;
        font-size: 0.9rem;
    }

    .resource-link img.hf-logo {
        width: 16px;
        height: 16px;
    }
    
    .prompt-audio-card {
        padding: 20px;
        margin: 0 20px;
    }
    
    .prompt-audio-section h3 {
        font-size: 1.5rem;
    }
    
    .prompt-description {
        font-size: 1rem;
        padding: 0 20px;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    /* Tighter header + smaller logo on tablets / small laptops */
    .header { padding: 46px 0 50px; }
    .header-logo { max-width: clamp(200px, 58vw, 440px); max-height: 190px; }
    
    .footer-links {
        flex-direction: row;
        align-items: center;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .title {
        font-size: 1.8rem;
    }
    
    .nav-links {
        flex-direction: column;
        gap: 10px;
    }
    
    .paper-info {
        flex-direction: column;
        gap: 15px;
    }

    .resource-links {
        margin-top: 18px;
        padding: 14px;
    }

    .resource-grid {
        gap: 10px;
    }

    .resource-link {
        padding: 9px 12px;
        font-size: 0.85rem;
        border-radius: 10px;
    }

    .resource-link img.hf-logo {
        width: 14px;
        height: 14px;
    }
    
    .text-sample {
        padding: 20px;
        font-size: 1rem;
    }
    
    .research-notes {
        margin-top: 30px;
        padding: 15px;
    }
    
    .footnote {
        flex-direction: column;
        gap: 5px;
    }
    
    .footnote-text {
        font-size: 0.85rem;
    }
    /* Phone sizing: more aggressive logo reduction */
    .header { padding: 38px 0 44px; }
    .header-logo { max-width: clamp(170px, 70vw, 360px); max-height: 150px; }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus States */
.nav-link:focus,
.paper-link:focus,
.footer-link:focus,
.component-toggle:focus + .checkbox-custom {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

.component-box:focus {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

audio:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Animation classes for scroll effects */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}