/* ============================================
   Flow-DPPO Project Page - Custom Styles
   Design: Minimal, gradient aesthetic, scroll-reveal
   ============================================ */

/* ---------- Design Tokens ---------- */
:root {
    --color-primary: #4f46e5;
    --color-secondary: #7c3aed;
    --color-accent: #06b6d4;
    --color-surface: #f7f8fb;
    --color-surface-alt: #f1f3f9;
    --color-text: #0f1222;
    --color-text-soft: #38415a;
    --color-text-muted: #6b7280;
    --color-border: #e5e7eb;
    --color-white: #ffffff;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;

    --font-display: 'Newsreader', serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --radius: 14px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --radius-pill: 999px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 28px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12);

    --container-max: 1100px;
    --container-narrow: 960px;
    --section-padding: clamp(3rem, 8vw, 6rem);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

/* ---------- Layout ---------- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 3rem);
}

.container-narrow {
    max-width: var(--container-narrow);
}

.section {
    padding: var(--section-padding) 0;
}

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

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 2.5rem;
    color: var(--color-text);
    white-space: nowrap;
}

/* ---------- HERO Section ---------- */
.hero {
    position: relative;
    padding: clamp(4rem, 12vw, 8rem) 0 clamp(3rem, 8vw, 6rem);
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(79, 70, 229, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(6, 182, 212, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, var(--color-white) 0%, var(--color-surface) 100%);
    z-index: 0;
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(79, 70, 229, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79, 70, 229, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero .container {
    position: relative;
    z-index: 1;
}

.venue-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    padding: 0.35em 1.2em;
    border-radius: var(--radius-pill);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.title-gradient {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-style: italic;
}

.title-colon {
    color: var(--color-text);
}

.title-sub {
    font-size: clamp(1.3rem, 3.2vw, 2.2rem);
    font-weight: 600;
    color: var(--color-text);
}

.authors {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.3rem 1.2rem;
    margin-bottom: 0.8rem;
    font-size: 1.05rem;
}

.author {
    color: var(--color-text);
    font-weight: 500;
}

.author sup {
    color: var(--color-primary);
    font-size: 0.7em;
}

.affiliations {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.3rem 1.5rem;
    font-size: 0.9rem;
    color: var(--color-text-soft);
    margin-bottom: 0.5rem;
}

.affiliations sup {
    color: var(--color-primary);
    font-size: 0.75em;
}

.author-note {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

/* ---------- Action Buttons ---------- */
.action-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65em 1.4em;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none !important;
    transition: all 0.2s ease;
    border: 1.5px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: white;
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-text);
    border-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-1px);
}

/* ---------- TEASER Section ---------- */
.teaser-figure {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.teaser-figure img {
    border-radius: var(--radius);
    width: 100%;
}

.teaser-grid {
    overflow-x: auto;
}

.teaser-header {
    display: grid;
    grid-template-columns: 1.8fr repeat(5, 1fr);
    gap: 0.5rem;
    padding: 0.5rem 0;
    margin-bottom: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-align: center;
    color: var(--color-text-soft);
    border-bottom: 1px solid var(--color-border);
}

.teaser-header .ours-label {
    color: var(--color-primary);
    font-weight: 700;
}

.teaser-row {
    display: grid;
    grid-template-columns: 1.8fr repeat(5, 1fr);
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.5rem;
}

.teaser-row img {
    width: 100%;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    aspect-ratio: 1;
    object-fit: cover;
}

.teaser-prompt {
    font-size: 0.75rem;
    color: var(--color-text-soft);
    font-style: italic;
    padding-right: 0.5rem;
    line-height: 1.4;
}

.figure-caption {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--color-text-soft);
    text-align: center;
    line-height: 1.6;
}

/* ---------- ABSTRACT Section ---------- */
.abstract-text {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-soft);
}

.abstract-text p {
    margin-bottom: 1rem;
}

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

/* ---------- Insight Boxes ---------- */
.insight-boxes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.insight-box {
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid;
}

.insight-problem {
    background: rgba(239, 68, 68, 0.04);
    border-color: rgba(239, 68, 68, 0.2);
}

.insight-solution {
    background: rgba(16, 185, 129, 0.04);
    border-color: rgba(16, 185, 129, 0.2);
}

.insight-icon {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.insight-problem .insight-icon { color: var(--color-danger); }
.insight-solution .insight-icon { color: var(--color-success); }

.insight-box h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.insight-box p {
    font-size: 0.9rem;
    color: var(--color-text-soft);
    line-height: 1.6;
}

/* ---------- MOTIVATION Section ---------- */
.motivation-content {
    font-size: 1.05rem;
    color: var(--color-text-soft);
    margin-bottom: 1.5rem;
}

.equation-block {
    margin: 1.5rem 0;
    padding: 1.2rem;
    background: var(--color-white);
    border-radius: var(--radius-sm);
    text-align: center;
    overflow-x: auto;
    border: 1px solid var(--color-border);
}

.section-surface .equation-block {
    background: var(--color-white);
}

.equation-small {
    font-size: 0.92rem;
}

.callout {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.04), rgba(124, 58, 237, 0.04));
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius) var(--radius) 0;
    margin: 2rem 0;
}

.callout-icon {
    font-size: 1.5rem;
    color: var(--color-primary);
    flex-shrink: 0;
}

.callout-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--color-primary);
}

.callout-content p {
    font-size: 0.95rem;
    color: var(--color-text-soft);
    line-height: 1.6;
}

/* ---------- Comparison Grid ---------- */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.comparison-card {
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1.5px solid;
}

.comparison-bad {
    border-color: rgba(239, 68, 68, 0.3);
    background: rgba(239, 68, 68, 0.02);
}

.comparison-good {
    border-color: rgba(16, 185, 129, 0.3);
    background: rgba(16, 185, 129, 0.02);
}

.comparison-card h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.comparison-bad h4 { color: var(--color-danger); }
.comparison-good h4 { color: var(--color-success); }

.comparison-card ul {
    list-style: none;
    padding: 0;
}

.comparison-card li {
    font-size: 0.9rem;
    color: var(--color-text-soft);
    padding: 0.3rem 0;
    padding-left: 1.2rem;
    position: relative;
}

.comparison-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.7rem;
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.comparison-bad li::before { background: var(--color-danger); }
.comparison-good li::before { background: var(--color-success); }

/* ---------- METHOD Section - Contribution Cards ---------- */
.contributions-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.contribution-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem 2rem;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.contribution-num {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    flex-shrink: 0;
}

.contribution-body {
    flex: 1;
    min-width: 0;
}

.contribution-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.contribution-card p {
    font-size: 0.9rem;
    color: var(--color-text-soft);
    line-height: 1.6;
    text-align: justify;
    hyphens: auto;
    -webkit-hyphens: auto;
    word-break: break-word;
}

.contribution-detail {
    margin-top: 0.5rem;
    font-weight: 500;
    color: var(--color-text) !important;
}

/* ---------- Objective Box ---------- */
.objective-box {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.03), rgba(6, 182, 212, 0.03));
    border: 1px solid rgba(79, 70, 229, 0.15);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
}

.objective-box h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

/* ---------- RESULTS Section - Tabs ---------- */
.tabs {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.tab-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 1rem;
}

.tab-btn {
    background: none;
    border: none;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    color: var(--color-primary);
    background: rgba(79, 70, 229, 0.05);
}

.tab-btn.active {
    color: var(--color-primary);
    background: rgba(79, 70, 229, 0.1);
    font-weight: 600;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

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

.tab-description {
    font-size: 0.95rem;
    color: var(--color-text-soft);
    margin-bottom: 1.5rem;
}

/* ---------- Results Table ---------- */
.table-wrapper {
    overflow-x: auto;
    margin-bottom: 1rem;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    white-space: nowrap;
}

.results-table th,
.results-table td {
    padding: 0.7rem 1rem;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.results-table th {
    background: var(--color-surface);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-text-soft);
}

.results-table th:first-child,
.results-table td:first-child {
    text-align: left;
    font-weight: 500;
}

.results-table .row-baseline {
    color: var(--color-text-muted);
}

.results-table .row-ours {
    background: rgba(79, 70, 229, 0.04);
}

.results-table .row-ours td:first-child {
    color: var(--color-primary);
}

.results-table .schedule-header td {
    background: var(--color-surface-alt);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-text-soft);
    text-align: left;
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--color-border);
}

.results-table .col-group {
    border-bottom: 2px solid var(--color-primary);
    color: var(--color-text);
}

.second-best {
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* ---------- KL Highlight ---------- */
.kl-highlight {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.06), rgba(6, 182, 212, 0.06));
    border-radius: var(--radius);
    border: 1px solid rgba(79, 70, 229, 0.15);
}

.kl-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.kl-text {
    font-size: 0.95rem;
    color: var(--color-text-soft);
}

/* ---------- Multi-Epoch ---------- */
.multi-epoch-grid {
    margin-bottom: 1.5rem;
}

.multi-epoch-grid img {
    width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.multi-epoch-grid.two-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.multi-epoch-grid .panel {
    text-align: center;
}

.multi-epoch-grid .panel h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-soft);
    margin-bottom: 0.5rem;
}

.multi-epoch-grid .panel img {
    width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.multi-epoch-configs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.config-card {
    text-align: center;
    padding: 1rem;
    background: var(--color-surface);
    border-radius: var(--radius-sm);
}

.config-card h4 {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-primary);
    margin-bottom: 0.3rem;
}

.config-card p {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ---------- Gallery (Paper-style grid: methods x prompts) ---------- */
.gallery-figure {
    overflow-x: auto;
}

.gallery-grid-paper {
    min-width: 700px;
}

.gallery-col-headers {
    display: grid;
    grid-template-columns: 100px repeat(6, 1fr);
    gap: 4px;
    margin-bottom: 4px;
    text-align: center;
}

.gallery-col-label {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.3rem 0;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.gallery-col-label.col-indomain {
    background: rgba(79, 70, 229, 0.08);
    color: var(--color-primary);
}

.gallery-col-label.col-ood {
    background: rgba(245, 158, 11, 0.08);
    color: var(--color-warning);
}

.gallery-paper-row {
    display: grid;
    grid-template-columns: 100px repeat(6, 1fr);
    gap: 4px;
    align-items: center;
    margin-bottom: 4px;
}

.gallery-paper-row img {
    width: 100%;
    border-radius: 4px;
    border: 1px solid var(--color-border);
    aspect-ratio: 1;
    object-fit: cover;
}

.gallery-method-label {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--color-text-soft);
    text-align: right;
    padding-right: 0.5rem;
    line-height: 1.2;
}

.gallery-method-label.ours-label {
    color: var(--color-primary);
    font-weight: 700;
}

.row-ours-gallery img {
    border-color: rgba(79, 70, 229, 0.3);
}

/* ---------- TAKEAWAYS Section ---------- */
.takeaways-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.takeaway-card {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--color-surface);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.takeaway-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.takeaway-icon {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.takeaway-stat {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.takeaway-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.takeaway-card p {
    font-size: 0.85rem;
    color: var(--color-text-soft);
    line-height: 1.5;
}

/* ---------- BIBTEX Section ---------- */
.bibtex-container {
    position: relative;
    background: var(--color-text);
    border-radius: var(--radius);
    padding: 1.5rem;
    overflow: hidden;
}

.bibtex-code {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: #e2e8f0;
    line-height: 1.6;
    overflow-x: auto;
    white-space: pre;
}

.copy-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #e2e8f0;
    font-family: var(--font-body);
    font-size: 0.8rem;
    padding: 0.4em 0.8em;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

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

.copy-btn.copied {
    background: var(--color-success);
    border-color: var(--color-success);
    color: white;
}

/* ---------- FOOTER ---------- */
.footer {
    padding: 2rem 0;
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
}

/* ---------- Scroll Reveal Animation ---------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- Responsive Design ---------- */
@media (max-width: 768px) {
    .title {
        font-size: 1.8rem;
    }

    .title-sub {
        font-size: 1.2rem;
    }

    .authors {
        font-size: 0.9rem;
        gap: 0.2rem 0.8rem;
    }

    .affiliations {
        font-size: 0.8rem;
        flex-direction: column;
        align-items: center;
    }

    .action-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }

    .insight-boxes,
    .comparison-grid {
        grid-template-columns: 1fr;
    }

    .teaser-grid {
        min-width: 600px;
    }

    .gallery-grid-paper {
        min-width: 600px;
    }

    .multi-epoch-grid.two-panel {
        grid-template-columns: 1fr;
    }

    .gallery-prompt {
        font-size: 0.75rem;
        white-space: normal;
    }

    .tabs {
        padding: 1rem;
    }

    .tab-buttons {
        gap: 0.25rem;
    }

    .tab-btn {
        font-size: 0.8rem;
        padding: 0.4rem 0.7rem;
    }

    .results-table {
        font-size: 0.75rem;
    }

    .results-table th,
    .results-table td {
        padding: 0.5rem 0.6rem;
    }

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

    .callout {
        flex-direction: column;
        gap: 0.75rem;
    }

    .kl-highlight {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .takeaways-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------- Print Styles ---------- */
@media print {
    .reveal {
        opacity: 1;
        transform: none;
    }

    .hero-bg {
        display: none;
    }
}