/* Music Unlearnable Project Styles - Research Poster Style */

:root {
    --color-bg: #0a0a0a;
    --color-bg-alt: #1a1a1a;
    --color-text: #ffffff;
    --color-text-dim: #a0a0a0;
    --color-primary: #9B59B6;
    --color-primary-light: #BB8FCE;
    --color-accent: #E74C3C;
    --color-success: #2ECC71;
    --color-warning: #F39C12;
    --gradient-primary: linear-gradient(135deg, #9B59B6 0%, #8E44AD 100%);
    --gradient-accent: linear-gradient(135deg, #E74C3C 0%, #C0392B 100%);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.unlearnable-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem 0;
    z-index: 1000;
}

.nav-brand {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.unlearnable-hero {
    padding: 8rem 0 4rem;
    text-align: center;
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: var(--gradient-primary);
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: white;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff 0%, var(--color-primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-text-dim);
    margin-bottom: 1rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-dim);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Section Styles */
.unlearnable-section {
    padding: 5rem 0;
}

.section-alt {
    background: var(--color-bg-alt);
}

.section-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.section-icon {
    font-size: 2rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.section-description {
    font-size: 1.1rem;
    color: var(--color-text-dim);
    margin-bottom: 2rem;
    text-align: center;
}

/* What is Unlearnable Section */
.unlearnable-comparison {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.comparison-panel {
    background: var(--color-bg);
    padding: 2rem;
    border-radius: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.comparison-panel:hover {
    border-color: var(--color-primary);
    box-shadow: 0 8px 24px rgba(155, 89, 182, 0.2);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.panel-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.panel-badge {
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.85rem;
    font-weight: 600;
}

.panel-badge.learnable {
    background: rgba(231, 76, 60, 0.2);
    color: #E74C3C;
    border: 2px solid #E74C3C;
}

.panel-badge.unlearnable {
    background: rgba(46, 204, 113, 0.2);
    color: #2ECC71;
    border: 2px solid #2ECC71;
}

.visual-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.flow-step {
    flex: 1;
    min-width: 120px;
    text-align: center;
    padding: 1.5rem 1rem;
    background: var(--color-bg-alt);
    border-radius: 0.8rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.flow-step:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.flow-step.protected {
    border-color: var(--color-primary);
    background: rgba(155, 89, 182, 0.1);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(155, 89, 182, 0.4);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(155, 89, 182, 0);
    }
}

.step-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

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

.step-content {
    font-family: 'Fira Code', monospace;
    font-size: 0.95rem;
    color: var(--color-text);
    font-weight: 600;
}

.flow-arrow {
    font-size: 1.5rem;
    color: var(--color-primary);
    font-weight: 700;
    min-width: 40px;
    text-align: center;
}

.risk-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    border-radius: 0.8rem;
    font-weight: 600;
}

.risk-indicator.high-risk {
    background: rgba(231, 76, 60, 0.2);
    color: #E74C3C;
    border: 2px solid #E74C3C;
}

.risk-indicator.low-risk {
    background: rgba(46, 204, 113, 0.2);
    color: #2ECC71;
    border: 2px solid #2ECC71;
}

.risk-icon {
    font-size: 1.5rem;
}

.risk-text {
    font-size: 1rem;
}

/* Animated Explanation */
.animated-explanation {
    margin-top: 4rem;
    padding: 2rem;
    background: var(--color-bg);
    border-radius: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.explanation-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--color-primary);
}

.animation-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.concept-canvas {
    width: 100%;
    max-width: 900px;
    height: 400px;
    background: #0d0d0d;
    border-radius: 0.8rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    display: block;
}

.animation-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn-anim {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Inter', sans-serif;
    background: var(--gradient-primary);
    color: white;
}

.btn-anim:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(155, 89, 182, 0.4);
}

.btn-anim.btn-secondary {
    background: var(--color-bg-alt);
    color: var(--color-text);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-anim.btn-secondary:hover {
    border-color: var(--color-primary);
    background: rgba(155, 89, 182, 0.1);
}

.animation-status {
    text-align: center;
    color: var(--color-text-dim);
    font-size: 0.95rem;
    min-height: 1.5rem;
}

/* Overview Section */
.overview-content {
    max-width: 900px;
    margin: 0 auto;
}

.overview-text {
    background: var(--color-bg-alt);
    padding: 2rem;
    border-radius: 1rem;
    border-left: 4px solid var(--color-primary);
}

.overview-paragraph {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-dim);
}

.overview-paragraph:last-child {
    margin-bottom: 0;
}

.overview-paragraph strong {
    color: var(--color-text);
    font-weight: 600;
}

/* Why It Works Section */
.why-works-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.why-works-text {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-dim);
}

.why-works-text p {
    margin-bottom: 1.5rem;
}

.why-works-text strong {
    color: var(--color-primary);
    font-weight: 600;
}

.why-works-diagram {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.diagram-box {
    background: var(--color-bg);
    padding: 1.5rem;
    border-radius: 0.8rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.diagram-box.highlight {
    border-color: var(--color-primary);
    background: rgba(155, 89, 182, 0.1);
}

.diagram-label {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.diagram-flow {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
}

.flow-item {
    padding: 0.5rem 1rem;
    background: var(--color-bg-alt);
    border-radius: 0.5rem;
    color: var(--color-text);
}

.flow-arrow {
    color: var(--color-primary);
    font-weight: 700;
}

/* Interactive Visualization Container */
.viz-container {
    display: grid;
    grid-template-columns: 1fr 0.8fr 1.2fr;
    gap: 2rem;
    margin-top: 3rem;
    padding: 2rem;
    background: var(--color-bg-alt);
    border-radius: 1rem;
}

.viz-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.column-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
    text-align: center;
}

/* Spectrogram Panels */
.spectrogram-panel {
    background: var(--color-bg);
    padding: 1rem;
    border-radius: 0.8rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.panel-label {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-text-dim);
    text-align: center;
}

.spectrogram-wrapper {
    width: 100%;
    height: 150px;
    background: #0d0d0d;
    border-radius: 0.5rem;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.spectrogram-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Controls Panel */
.controls-panel {
    background: var(--color-bg);
    padding: 1.5rem;
    border-radius: 0.8rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.control-group {
    margin-bottom: 1.5rem;
}

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

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

.control-slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.control-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.control-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 8px rgba(155, 89, 182, 0.6);
}

.control-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: none;
}

.slider-value {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-top: 0.5rem;
}

/* Toggle Switch */
.toggle-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.2);
    transition: 0.3s;
    border-radius: 26px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--gradient-primary);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(24px);
}

.toggle-label {
    font-size: 0.9rem;
    color: var(--color-text-dim);
}

/* Budget Bar */
.budget-bar-container {
    position: relative;
    width: 100%;
    height: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    overflow: hidden;
}

.budget-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 15px;
    transition: width 0.3s ease;
    width: 30%;
}

.budget-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text);
    z-index: 10;
}

/* CLAP Block */
.clap-column {
    align-items: center;
    justify-content: center;
}

.clap-block {
    background: var(--color-bg);
    padding: 2rem;
    border-radius: 1rem;
    border: 3px solid var(--color-primary);
    text-align: center;
    position: relative;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.clap-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.clap-label {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.3rem;
}

.clap-description {
    font-size: 0.85rem;
    color: var(--color-text-dim);
}

.arrow-from-clean,
.arrow-from-protected {
    position: absolute;
    width: 100px;
    height: 50px;
    color: var(--color-primary);
}

.arrow-from-clean {
    left: -120px;
    top: 30%;
}

.arrow-from-protected {
    left: -120px;
    top: 60%;
    color: var(--color-accent);
}

.arrow-svg {
    width: 100%;
    height: 100%;
}

.arrow-label {
    position: absolute;
    right: -30px;
    top: 50%;
    transform: translateY(-50%);
    font-family: 'Fira Code', monospace;
    font-weight: 600;
    font-size: 0.9rem;
}

/* Embedding Space */
.embedding-space-panel {
    background: var(--color-bg);
    padding: 1rem;
    border-radius: 0.8rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.embedding-canvas-wrapper {
    width: 100%;
    height: 250px;
    background: #0d0d0d;
    border-radius: 0.5rem;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 0.5rem;
}

.embedding-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.delta-display {
    text-align: center;
    font-family: 'Fira Code', monospace;
    font-size: 0.95rem;
}

.delta-label {
    color: var(--color-text-dim);
}

.delta-value {
    color: var(--color-primary);
    font-weight: 700;
    margin-left: 0.5rem;
}

/* LDM Panel */
.ldm-panel {
    background: var(--color-bg);
    padding: 1.5rem;
    border-radius: 0.8rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.ldm-flow {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.ldm-condition,
.ldm-output {
    text-align: center;
}

.condition-label,
.output-label {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    margin-bottom: 0.3rem;
}

.condition-value,
.output-value {
    font-family: 'Fira Code', monospace;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary);
}

.ldm-model {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--color-bg-alt);
    border-radius: 0.5rem;
    border: 2px solid var(--color-primary);
}

.ldm-icon {
    font-size: 2rem;
}

.ldm-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
}

.mismatch-hint {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(231, 76, 60, 0.1);
    border-left: 3px solid var(--color-accent);
    border-radius: 0.5rem;
    font-size: 0.9rem;
    color: var(--color-text-dim);
    text-align: center;
    display: none;
}

.mismatch-hint.active {
    display: block;
}

/* Risk Meter */
.risk-meter-panel {
    background: var(--color-bg);
    padding: 1.5rem;
    border-radius: 0.8rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.risk-meter-container {
    margin-top: 1rem;
}

.risk-meter-bar {
    position: relative;
    width: 100%;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    overflow: hidden;
}

.risk-meter-fill {
    height: 100%;
    background: var(--gradient-accent);
    border-radius: 20px;
    transition: width 0.3s ease;
    width: 50%;
}

.risk-meter-label-low,
.risk-meter-label-high {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0 0.5rem;
}

.risk-meter-label-low {
    left: 0.5rem;
    color: var(--color-success);
}

.risk-meter-label-high {
    right: 0.5rem;
    color: var(--color-accent);
}

.risk-value {
    text-align: center;
    font-size: 1.2rem;
    font-weight: 700;
    margin-top: 0.5rem;
    color: var(--color-text);
}

/* Method Section */
.method-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.method-formulas h3,
.method-algorithm h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
}

.formula-box {
    background: var(--color-bg-alt);
    padding: 2rem;
    border-radius: 1rem;
    border-left: 4px solid var(--color-primary);
}

.formula-item {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.formula-item:last-child {
    margin-bottom: 0;
}

.formula-label {
    font-size: 0.9rem;
    color: var(--color-text-dim);
}

.formula {
    font-family: 'Fira Code', monospace;
    font-size: 1.1rem;
    color: var(--color-text);
    font-weight: 600;
}

.algorithm-box {
    background: var(--color-bg-alt);
    padding: 2rem;
    border-radius: 1rem;
    border-left: 4px solid var(--color-primary);
    overflow-x: auto;
}

.algorithm-code {
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--color-text);
    white-space: pre;
    margin: 0;
}

/* Evaluation Section */
.evaluation-content {
    max-width: 1200px;
    margin: 0 auto;
}

.evaluation-intro {
    font-size: 1.1rem;
    color: var(--color-text-dim);
    margin-bottom: 2rem;
    text-align: center;
}

.evaluation-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.evaluation-card {
    background: var(--color-bg-alt);
    padding: 2rem;
    border-radius: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.evaluation-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(155, 89, 182, 0.2);
}

.eval-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.evaluation-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.evaluation-card p {
    color: var(--color-text-dim);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.eval-metric {
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    color: var(--color-primary);
    font-weight: 600;
    padding: 0.5rem 1rem;
    background: rgba(155, 89, 182, 0.1);
    border-radius: 0.5rem;
    display: inline-block;
}

/* Limitations Section */
.limitations-content {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.limitation-item {
    background: var(--color-bg-alt);
    padding: 2rem;
    border-radius: 1rem;
    border-left: 4px solid var(--color-warning);
}

.limitation-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--color-warning);
}

.limitation-item p {
    color: var(--color-text-dim);
    line-height: 1.7;
}

/* Resources Section */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.resource-card {
    background: var(--color-bg-alt);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.resource-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.resource-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.resource-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.resource-card p {
    color: var(--color-text-dim);
    margin-bottom: 1.5rem;
}

.btn-resource {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-resource:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(155, 89, 182, 0.4);
}

/* Footer */
.unlearnable-footer {
    background: var(--color-bg-alt);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links {
    margin-top: 1rem;
}

.footer-links a {
    color: var(--color-text-dim);
    text-decoration: none;
    margin: 0 1rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-primary);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .unlearnable-comparison {
        grid-template-columns: 1fr;
    }
    
    .visual-flow {
        flex-direction: column;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
    .viz-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .why-works-content {
        grid-template-columns: 1fr;
    }
    
    .method-content {
        grid-template-columns: 1fr;
    }
    
    .evaluation-grid {
        grid-template-columns: 1fr;
    }
    
    .resources-grid {
        grid-template-columns: 1fr;
    }
    
    .arrow-from-clean,
    .arrow-from-protected {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .unlearnable-section {
        padding: 3rem 0;
    }
}

/* Accessibility */
.btn-resource:focus,
.control-slider:focus,
.toggle-switch input:focus + .toggle-slider {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}