:root {
    --navy: #0A2540;
    --navy-mid: #0e3260;
    --navy-light: #1a4a7a;
    --orange: #FF6B00;
    --orange-light: #ff8c33;
    --orange-pale: #fff2e8;
    --off-white: #F8FAFC;
    --white: #ffffff;
    --text-dark: #1A1A1A;
    --text-mid: #374151;
    --text-muted: #6B7280;
    --border: #D9E1EA;
    --border-light: #edf2f7;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-head: 'Poppins', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-card: 0 2px 20px rgba(10,37,64,0.08);
    --shadow-hover: 0 8px 40px rgba(10,37,64,0.14);
    --transition: 0.22s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font-body);
    color: var(--text-dark);
    background: var(--white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

/* ── UTILITIES ── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-sm { padding: 56px 0; }
.tag {
    display: inline-block;
    font-family: var(--font-head);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 4px;
    background: var(--orange-pale);
    color: var(--orange);
}
.tag-navy { background: rgba(10,37,64,0.07); color: var(--navy); }
.tag-green { background: #e8f5e9; color: #2e7d32; }
.tag-blue { background: #e3f2fd; color: #1565c0; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-center { display: flex; align-items: center; justify-content: center; }

/* ── BUTTONS ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-head);
    font-size: 14px;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    letter-spacing: 0.01em;
    white-space: nowrap;
}
.btn-primary { background: var(--orange); color: #fff; }
.btn-primary:hover { background: var(--orange-light); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--navy); border: 1.5px solid var(--navy); }
.btn-secondary:hover { background: var(--navy); color: #fff; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--orange); padding: 8px 0; font-size: 13px; }
.btn-ghost:hover { color: var(--orange-light); }
.btn-ghost .arrow { transition: transform var(--transition); }
.btn-ghost:hover .arrow { transform: translateX(4px); }
.btn-white { background: #fff; color: var(--navy); }
.btn-white:hover { background: var(--off-white); transform: translateY(-1px); }

/* ── NAV ── */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--white);
    border-bottom: 1px solid var(--border-light);
    backdrop-filter: blur(8px);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-logo {
    font-family: var(--font-head);
    font-size: 18px;
    font-weight: 700;
    color: var(--navy);
    text-decoration: none;
    letter-spacing: -0.02em;
}
.nav-logo span { color: var(--orange); }
.nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
.nav-links a {
    font-family: var(--font-head);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-mid);
    text-decoration: none;
    transition: color var(--transition);
}
.nav-links a:hover { color: var(--navy); }
.nav-links a.active { color: var(--orange); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; background: none; border: none; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--navy); border-radius: 2px; transition: var(--transition); }

/* ── HERO ── */
.hero { background: var(--navy); color: #fff; padding: 100px 0 80px; position: relative; overflow: hidden; }
.hero::before {
    content: '';
    position: absolute;
    top: -120px; right: -120px;
    width: 560px; height: 560px;
    border-radius: 50%;
    background: rgba(255,107,0,0.08);
    pointer-events: none;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -80px; left: -80px;
    width: 380px; height: 380px;
    border-radius: 50%;
    background: rgba(255,255,255,0.03);
    pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1fr 420px; gap: 64px; align-items: center; }
.hero-eyebrow {
    font-family: var(--font-head);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--orange);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.hero-eyebrow::before { content: ''; display: block; width: 32px; height: 2px; background: var(--orange); }
.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(36px, 5vw, 58px);
    font-weight: 900;
    line-height: 1.1;
    color: #fff;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}
.hero h1 em { font-style: normal; color: var(--orange); }
.hero-sub { font-size: 17px; color: rgba(255,255,255,0.72); max-width: 480px; margin-bottom: 40px; line-height: 1.7; font-weight: 300; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stat-card {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-lg);
    padding: 28px;
    backdrop-filter: blur(12px);
}
.hero-stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.hero-stat { background: rgba(255,255,255,0.06); border-radius: var(--radius-md); padding: 16px; text-align: center; }
.hero-stat-num { font-family: var(--font-head); font-size: 26px; font-weight: 700; color: var(--orange); display: block; line-height: 1; margin-bottom: 6px; }
.hero-stat-label { font-size: 11px; color: rgba(255,255,255,0.55); font-weight: 400; line-height: 1.3; }
.hero-featured-label { font-family: var(--font-head); font-size: 10px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255,255,255,0.4); margin-bottom: 12px; }
.hero-pill { display: flex; align-items: center; gap: 10px; background: rgba(255,107,0,0.15); border: 1px solid rgba(255,107,0,0.3); border-radius: 40px; padding: 10px 16px; text-decoration: none; }
.hero-pill-icon { width: 28px; height: 28px; background: var(--orange); border-radius: 50%; flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.hero-pill-icon svg { width: 14px; height: 14px; fill: #fff; }
.hero-pill-text { font-size: 13px; color: rgba(255,255,255,0.85); font-weight: 500; }
.hero-pill-text strong { color: #fff; display: block; font-size: 14px; }

/* ── PILLAR BAND ── */
.pillars-band { background: var(--off-white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.pillar-item { display: flex; align-items: center; gap: 14px; padding: 28px 0; }
.pillar-item + .pillar-item { border-left: 1px solid var(--border); padding-left: 40px; margin-left: 40px; }
.pillar-icon { width: 40px; height: 40px; background: var(--navy); border-radius: var(--radius-sm); flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.pillar-icon svg { width: 20px; height: 20px; fill: #fff; }
.pillar-name { font-family: var(--font-head); font-size: 14px; font-weight: 600; color: var(--navy); }
.pillar-count { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* ── SECTION HEADINGS ── */
.section-head { margin-bottom: 48px; }
.section-head .overline { font-family: var(--font-head); font-size: 11px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--orange); margin-bottom: 12px; }
.section-head h2 { font-family: var(--font-display); font-size: clamp(28px, 4vw, 40px); font-weight: 700; color: var(--navy); line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 14px; }
.section-head p { font-size: 16px; color: var(--text-muted); max-width: 560px; font-weight: 300; }
.section-head.center { text-align: center; }
.section-head.center p { margin: 0 auto; }

/* ── CONTENT CARDS ── */
.content-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
    cursor: pointer;
    text-decoration: none;
    display: flex;
    flex-direction: column;
}
.content-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.card-thumb { aspect-ratio: 16/9; background: var(--navy); position: relative; overflow: hidden; flex-shrink: 0; }
.card-thumb-reel { background: linear-gradient(135deg, #0A2540 0%, #1a4a7a 100%); }
.card-thumb-cartoon { background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%); }
.card-thumb-blog { background: linear-gradient(135deg, #0f3443 0%, #34e89e 100%); }
.card-thumb-series { background: linear-gradient(135deg, #7f0000 0%, #0A2540 100%); }
.card-thumb-overlay { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
.play-btn { width: 48px; height: 48px; background: rgba(255,255,255,0.15); border: 2px solid rgba(255,255,255,0.4); border-radius: 50%; display: flex; align-items: center; justify-content: center; backdrop-filter: blur(4px); transition: var(--transition); }
.content-card:hover .play-btn { background: var(--orange); border-color: var(--orange); }
.play-btn svg { width: 18px; height: 18px; fill: #fff; margin-left: 2px; }
.card-img-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
.card-img-placeholder svg { width: 48px; height: 48px; opacity: 0.15; fill: #fff; }
.card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.card-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.card-date { font-size: 12px; color: var(--text-muted); margin-left: auto; }
.card-title { font-family: var(--font-head); font-size: 15px; font-weight: 600; color: var(--navy); line-height: 1.4; margin-bottom: 8px; }
.card-excerpt { font-size: 13px; color: var(--text-muted); line-height: 1.6; flex: 1; margin-bottom: 16px; font-weight: 300; }
.card-footer { display: flex; align-items: center; justify-content: space-between; padding-top: 12px; border-top: 1px solid var(--border-light); }
.card-topic { font-size: 11px; color: var(--text-muted); font-family: var(--font-head); font-weight: 500; }
.card-share-btn { width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--border); background: none; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.card-share-btn:hover { background: var(--off-white); border-color: var(--navy); }
.card-share-btn svg { width: 12px; height: 12px; fill: var(--text-muted); }

/* ── FEATURED TRIO ── */
.featured-trio { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 24px; }
.featured-main .card-thumb { aspect-ratio: 4/3; }
.featured-main .card-title { font-size: 18px; }

/* ── PROBLEM BAND ── */
.problem-band { background: var(--navy); color: #fff; padding: 72px 0; position: relative; overflow: hidden; }
.problem-band::before { content: ''; position: absolute; right: -200px; top: 50%; transform: translateY(-50%); width: 600px; height: 600px; background: rgba(255,107,0,0.06); border-radius: 50%; }
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.problem-label { font-family: var(--font-head); font-size: 11px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--orange); margin-bottom: 20px; }
.problem-quote { font-family: var(--font-display); font-size: clamp(24px, 3.5vw, 38px); font-weight: 700; line-height: 1.25; color: #fff; margin-bottom: 16px; letter-spacing: -0.01em; }
.problem-quote em { color: var(--orange); font-style: normal; }
.problem-sub { font-size: 15px; color: rgba(255,255,255,0.6); font-weight: 300; line-height: 1.7; }
.problem-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.p-stat { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-md); padding: 20px; }
.p-stat-num { font-family: var(--font-head); font-size: 32px; font-weight: 700; color: var(--orange); display: block; line-height: 1; margin-bottom: 8px; }
.p-stat-text { font-size: 13px; color: rgba(255,255,255,0.6); line-height: 1.5; }

/* ── SERIES SPOTLIGHT ── */
.series-card { background: var(--navy); border-radius: var(--radius-xl); overflow: hidden; display: grid; grid-template-columns: 1fr 360px; min-height: 360px; }
.series-content { padding: 48px; display: flex; flex-direction: column; justify-content: center; }
.series-badge { display: inline-block; background: rgba(255,107,0,0.2); border: 1px solid rgba(255,107,0,0.35); color: var(--orange); font-family: var(--font-head); font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; padding: 5px 12px; border-radius: 4px; margin-bottom: 20px; }
.series-title { font-family: var(--font-display); font-size: clamp(28px, 4vw, 42px); font-weight: 900; color: #fff; line-height: 1.15; margin-bottom: 16px; letter-spacing: -0.02em; }
.series-desc { font-size: 15px; color: rgba(255,255,255,0.65); font-weight: 300; line-height: 1.7; margin-bottom: 28px; }
.series-viral { background: rgba(255,255,255,0.06); border-left: 3px solid var(--orange); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 14px 18px; margin-bottom: 28px; font-style: italic; font-size: 14px; color: rgba(255,255,255,0.8); font-family: var(--font-display); }
.series-episodes { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-md); overflow: hidden; display: flex; flex-direction: column; }
.episode-item { display: flex; align-items: center; gap: 14px; padding: 16px 20px; border-bottom: 1px solid rgba(255,255,255,0.07); cursor: pointer; transition: background var(--transition); text-decoration: none; }
.episode-item:last-child { border-bottom: none; }
.episode-item:hover { background: rgba(255,255,255,0.05); }
.ep-num { font-family: var(--font-head); font-size: 11px; font-weight: 700; color: var(--orange); width: 28px; text-align: center; }
.ep-title { font-size: 13px; color: rgba(255,255,255,0.8); flex: 1; }
.ep-type { font-size: 10px; color: rgba(255,255,255,0.35); font-family: var(--font-head); }

/* ── CHAIRPERSON BLOCK ── */
.chair-block { background: var(--off-white); border-radius: var(--radius-xl); padding: 56px; display: grid; grid-template-columns: 240px 1fr; gap: 56px; align-items: center; border: 1px solid var(--border); }
.chair-photo { width: 200px; height: 200px; border-radius: var(--radius-xl); background: var(--navy); overflow: hidden; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 56px; font-weight: 900; color: rgba(255,255,255,0.15); letter-spacing: -2px; border: 3px solid rgba(10,37,64,0.15); }
.chair-role { font-family: var(--font-head); font-size: 11px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--orange); margin-bottom: 10px; }
.chair-name { font-family: var(--font-display); font-size: 32px; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.chair-title { font-size: 14px; color: var(--text-muted); margin-bottom: 20px; }
.chair-bio { font-size: 15px; color: var(--text-mid); line-height: 1.75; margin-bottom: 28px; font-weight: 300; }
.chair-themes { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.theme-chip { background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 5px 14px; font-size: 12px; color: var(--navy); font-family: var(--font-head); font-weight: 500; }

/* ── FILTERS ── */
.filter-bar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 36px; }
.filter-chip { font-family: var(--font-head); font-size: 12px; font-weight: 500; padding: 7px 16px; border-radius: 20px; border: 1px solid var(--border); background: var(--white); color: var(--text-muted); cursor: pointer; transition: var(--transition); }
.filter-chip:hover, .filter-chip.active { background: var(--navy); color: #fff; border-color: var(--navy); }
.filter-chip.active { border-color: var(--orange); background: var(--orange); }

/* ── COLLABORATE CTA ── */
.collab-cta { background: var(--navy); border-radius: var(--radius-xl); padding: 72px 56px; text-align: center; position: relative; overflow: hidden; }
.collab-cta::before { content: ''; position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 600px; height: 600px; border-radius: 50%; background: radial-gradient(circle, rgba(255,107,0,0.1) 0%, transparent 70%); pointer-events: none; }
.collab-cta h2 { font-family: var(--font-display); font-size: clamp(28px, 4vw, 42px); font-weight: 700; color: #fff; margin-bottom: 14px; letter-spacing: -0.02em; }
.collab-cta p { font-size: 16px; color: rgba(255,255,255,0.6); margin-bottom: 36px; font-weight: 300; }
.collab-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ── TOPICS ── */
.topic-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.topic-card { border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; text-decoration: none; transition: var(--transition); display: flex; align-items: center; gap: 16px; cursor: pointer; }
.topic-card:hover { border-color: var(--navy); box-shadow: var(--shadow-card); transform: translateY(-2px); }
.topic-icon { width: 44px; height: 44px; border-radius: var(--radius-md); flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.topic-icon svg { width: 22px; height: 22px; fill: #fff; }
.topic-name { font-family: var(--font-head); font-size: 14px; font-weight: 600; color: var(--navy); margin-bottom: 3px; }
.topic-count { font-size: 12px; color: var(--text-muted); }

/* ── FOOTER ── */
.footer { background: var(--navy); color: rgba(255,255,255,0.7); padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-logo { font-family: var(--font-head); font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.footer-logo span { color: var(--orange); }
.footer-tagline { font-size: 13px; color: rgba(255,255,255,0.45); line-height: 1.6; margin-bottom: 24px; font-weight: 300; }
.footer-social { display: flex; gap: 10px; }
.social-btn { width: 34px; height: 34px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: var(--transition); text-decoration: none; }
.social-btn:hover { background: var(--orange); border-color: var(--orange); }
.social-btn svg { width: 14px; height: 14px; fill: rgba(255,255,255,0.7); }
.social-btn:hover svg { fill: #fff; }
.footer-col h4 { font-family: var(--font-head); font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255,255,255,0.4); margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col ul li + li { margin-top: 10px; }
.footer-col ul a { font-size: 13px; color: rgba(255,255,255,0.6); text-decoration: none; transition: color var(--transition); font-weight: 300; }
.footer-col ul a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; display: flex; align-items: center; justify-content: space-between; }
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,0.3); }
.footer-bottom a { color: rgba(255,255,255,0.4); text-decoration: none; }
.footer-bottom a:hover { color: rgba(255,255,255,0.7); }

/* ── MOBILE MENU ── */
.mobile-menu { display: none; position: fixed; inset: 0; z-index: 200; background: var(--navy); flex-direction: column; padding: 24px; }
.mobile-menu.open { display: flex; }
.mobile-menu-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 40px; }
.mobile-close { width: 36px; height: 36px; background: rgba(255,255,255,0.08); border: none; border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.mobile-close svg { width: 16px; height: 16px; fill: #fff; }
.mobile-nav-links { list-style: none; flex: 1; }
.mobile-nav-links li + li { border-top: 1px solid rgba(255,255,255,0.07); }
.mobile-nav-links a { display: block; padding: 18px 0; font-family: var(--font-head); font-size: 18px; font-weight: 600; color: rgba(255,255,255,0.85); text-decoration: none; transition: color var(--transition); }
.mobile-nav-links a:hover { color: var(--orange); }

/* ── SCROLL ANIMATIONS ── */
.fade-in { opacity: 1; transform: none; transition: opacity 0.6s ease, transform 0.6s ease; } 
.js-enabled .fade-in { opacity: 0; transform: translateY(24px); } 
.js-enabled .fade-in.visible { opacity: 1; transform: none; }
.fade-in.visible { opacity: 1; transform: none; }
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }

/* ── FORM STYLES ── */
.form-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--text-dark);
    background: var(--white);
    outline: none;
    transition: border-color .2s;
}
.form-input:focus { border-color: var(--navy); }
.form-label { font-size: 12px; font-family: var(--font-head); font-weight: 600; color: var(--navy); display: block; margin-bottom: 6px; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero-stat-card { max-width: 420px; }
    .featured-trio { grid-template-columns: 1fr 1fr; }
    .featured-main { grid-column: 1 / -1; }
    .featured-main .card-thumb { aspect-ratio: 16/7; }
    .series-card { grid-template-columns: 1fr; }
    .series-episodes { display: none; }
    .chair-block { grid-template-columns: 1fr; text-align: center; }
    .chair-photo { margin: 0 auto; }
    .chair-themes { justify-content: center; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
    .section { padding: 56px 0; }
    .nav-links, .nav-cta { display: none; }
    .hamburger { display: flex; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .featured-trio { grid-template-columns: 1fr; }
    .featured-main { grid-column: auto; }
    .problem-grid { grid-template-columns: 1fr; gap: 40px; }
    .problem-stats { grid-template-columns: 1fr 1fr; }
    .topic-grid { grid-template-columns: 1fr 1fr; }
    .collab-cta { padding: 48px 28px; }
    .chair-block { padding: 32px 24px; }
    .pillar-item + .pillar-item { border-left: none; padding-left: 0; margin-left: 0; border-top: 1px solid var(--border); padding-top: 20px; margin-top: 20px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
    .hero-btns { flex-direction: column; }
    .hero-btns .btn { width: 100%; justify-content: center; }
    .topic-grid { grid-template-columns: 1fr; }
    .problem-stats { grid-template-columns: 1fr; }
    .hero-stat-grid { grid-template-columns: 1fr 1fr; }
}