.biology-zone-shell{--bio-bg: #020617;--bio-panel: rgba(15, 23, 42, 0.72);--bio-panel-soft: rgba(15, 23, 42, 0.48);--bio-card: rgba(13, 21, 39, 0.64);--bio-border: rgba(148, 163, 184, 0.16);--bio-border-strong: rgba(0, 245, 212, 0.24);--bio-text: #f8fafc;--bio-muted: #cbd5e1;--bio-soft: #94a3b8;--bio-dim: #64748b;--bio-accent: #00d4b2;--bio-focus: #00f5d4;--bio-blue: #60a5fa;--bio-green: #34d399;--bio-gold: #f59e0b;--bio-pink: #f472b6;--bio-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);--bio-radius-xl: 30px;--bio-radius-lg: 24px;--bio-radius-md: 18px;isolation:isolate;position:relative;width:100%;max-width:1320px;margin:0 auto;padding:clamp(1.25rem, 3vw, 2.25rem);color:var(--bio-text);box-sizing:border-box}.biology-zone-shell *,.biology-zone-shell *::before,.biology-zone-shell *::after{box-sizing:border-box}.biology-zone-shell::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(circle at 12% 18%, rgba(0,245,212,0.08), transparent 34%),radial-gradient(circle at 88% 28%, rgba(99,102,241,0.08), transparent 34%),radial-gradient(circle at 50% 100%, rgba(5,150,105,0.08), transparent 36%)}.biology-zone-hero{position:relative;overflow:hidden;border:1px solid var(--bio-border-strong);border-radius:var(--bio-radius-xl);background:linear-gradient(135deg, rgba(15,23,42,0.94), rgba(2,6,23,0.74)),radial-gradient(circle at top left, rgba(0,245,212,0.18), transparent 42%);box-shadow:var(--bio-shadow)}.biology-zone-hero::after{content:"";position:absolute;inset:auto -12% -45% auto;width:min(36rem, 70vw);aspect-ratio:1;border-radius:999px;background:radial-gradient(circle, rgba(0,212,178,0.2), transparent 66%);pointer-events:none}.biology-hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0, 1fr) minmax(250px, 360px);gap:clamp(1.25rem, 4vw, 3rem);align-items:stretch;padding:clamp(1.5rem, 5vw, 4rem)}.biology-hero-copy{min-width:0}.biology-zone-eyebrow,.biology-pillar-kicker,.biology-pillar-index__label,.biology-status-label,.biology-metric-label{text-transform:uppercase;letter-spacing:0.1em;font-weight:850}.biology-zone-eyebrow{display:inline-flex;align-items:center;gap:0.55rem;margin:0 0 1rem;color:var(--bio-focus);font-size:0.78rem}.biology-zone-eyebrow::before{content:"";width:0.62rem;height:0.62rem;border-radius:999px;background:var(--bio-focus);box-shadow:0 0 18px rgba(0,245,212,0.72)}.biology-zone-title{max-width:920px;margin:0;color:var(--bio-text);font-size:clamp(2.45rem, 7vw, 5.75rem);font-weight:950;line-height:0.96;letter-spacing:-0.065em}.biology-zone-subtitle{max-width:820px;margin:1.25rem 0 0;color:var(--bio-muted);font-size:clamp(1rem, 2vw, 1.2rem);line-height:1.75}.biology-zone-actions{display:flex;flex-wrap:wrap;gap:0.85rem;margin-top:1.6rem}.biology-zone-action{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0.72rem 1rem;border:1px solid rgba(0,245,212,0.22);border-radius:12px;color:#ccfbf1 !important;background:rgba(0,212,178,0.08);text-decoration:none !important;font-weight:850;line-height:1.1;transition:transform 180ms ease, border-color 180ms ease, background-color 180ms ease}.biology-zone-action:hover,.biology-zone-action:focus-visible{transform:translateY(-2px);border-color:var(--bio-focus);background:rgba(0,212,178,0.14)}.biology-zone-action--primary{color:#020617 !important;background:var(--bio-focus);border-color:var(--bio-focus)}.biology-zone-status{display:flex;flex-direction:column;justify-content:flex-end;min-height:100%;padding:clamp(1rem, 3vw, 1.5rem);border:1px solid rgba(148,163,184,0.12);border-radius:var(--bio-radius-lg);background:rgba(2,6,23,0.42);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}.biology-status-orb{width:4.25rem;height:4.25rem;margin-bottom:auto;border-radius:999px;background:radial-gradient(circle at 35% 35%, #fff, rgba(255,255,255,0.18) 24%, transparent 28%),radial-gradient(circle, rgba(0,245,212,0.92), rgba(13,148,136,0.18) 62%, transparent 70%);box-shadow:0 0 42px rgba(0,245,212,0.34)}.biology-status-label{margin:1.5rem 0 0.35rem;color:var(--bio-soft);font-size:0.72rem}.biology-status-value{margin:0;color:var(--bio-text);font-size:1.35rem;font-weight:900}.biology-status-note{margin:0.75rem 0 0;color:var(--bio-soft);font-size:0.9rem;line-height:1.6}.biology-status-note code{color:var(--bio-focus);background:rgba(0,245,212,0.08);border-radius:6px;padding:0.08rem 0.32rem}.biology-zone-metrics{display:grid;grid-template-columns:repeat(4, minmax(0, 1fr));gap:1rem;margin:clamp(1.2rem, 4vw, 2rem) 0}.biology-metric-card{min-width:0;padding:1.15rem;border:1px solid var(--bio-border);border-radius:var(--bio-radius-md);background:var(--bio-panel-soft);box-shadow:0 14px 34px rgba(0,0,0,0.18)}.biology-metric-value{display:block;color:var(--bio-focus);font-size:clamp(1.8rem, 4vw, 2.5rem);line-height:1;font-weight:950;letter-spacing:-0.045em}.biology-metric-label{display:block;margin-top:0.5rem;color:var(--bio-soft);font-size:0.72rem}.biology-zone-intro{max-width:900px;margin:0 auto clamp(1.5rem, 4vw, 2.5rem);padding:1.25rem;border-left:3px solid var(--bio-focus);border-radius:0 var(--bio-radius-md) var(--bio-radius-md) 0;background:rgba(0,212,178,0.045);color:var(--bio-muted);line-height:1.75}.biology-pillar-index{position:sticky;top:70px;z-index:30;display:flex;flex-wrap:wrap;align-items:center;gap:0.75rem;margin:0 0 clamp(1.25rem, 4vw, 2rem);padding:0.85rem;border:1px solid var(--bio-border);border-radius:999px;background:rgba(2,6,23,0.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}.biology-pillar-index__label{flex:0 0 auto;color:var(--bio-soft);font-size:0.7rem;padding-left:0.35rem}.biology-pillar-index__links{display:flex;flex-wrap:wrap;gap:0.5rem}.biology-pillar-index__links a{display:inline-flex;align-items:center;min-height:34px;padding:0.42rem 0.72rem;border:1px solid rgba(148,163,184,0.14);border-radius:999px;color:var(--bio-muted) !important;background:rgba(15,23,42,0.64);text-decoration:none !important;font-size:0.85rem;font-weight:750}.biology-pillar-index__links a:hover,.biology-pillar-index__links a:focus-visible{color:#020617 !important;border-color:var(--bio-focus);background:var(--bio-focus)}.biology-matrix-sections{display:grid;gap:clamp(1.5rem, 5vw, 3rem)}.biology-pillar-section{--pillar-accent: var(--bio-accent);--pillar-soft: rgba(0, 212, 178, 0.14);--pillar-glow: rgba(0, 212, 178, 0.28);position:relative;scroll-margin-top:120px;padding:clamp(1rem, 3vw, 1.75rem);border:1px solid rgba(148,163,184,0.12);border-radius:var(--bio-radius-lg);background:linear-gradient(180deg, rgba(15,23,42,0.58), rgba(2,6,23,0.36)),rgba(2,6,23,0.34);box-shadow:0 20px 54px rgba(0,0,0,0.22)}.pillar-color-zoology{--pillar-accent: #f59e0b;--pillar-soft: rgba(245, 158, 11, 0.16);--pillar-glow: rgba(245, 158, 11, 0.32)}.pillar-color-botany,.pillar-color-cellular{--pillar-accent: #0d9488;--pillar-soft: rgba(13, 148, 136, 0.18);--pillar-glow: rgba(13, 148, 136, 0.34)}.pillar-color-genetics{--pillar-accent: #818cf8;--pillar-soft: rgba(129, 140, 248, 0.18);--pillar-glow: rgba(129, 140, 248, 0.34)}.pillar-color-ecology{--pillar-accent: #34d399;--pillar-soft: rgba(52, 211, 153, 0.16);--pillar-glow: rgba(52, 211, 153, 0.3)}.pillar-color-biostatistics{--pillar-accent: #f472b6;--pillar-soft: rgba(244, 114, 182, 0.16);--pillar-glow: rgba(244, 114, 182, 0.3)}.biology-pillar-heading{display:flex;align-items:center;gap:1rem;margin-bottom:clamp(1rem, 3vw, 1.5rem)}.biology-pillar-dot{flex:0 0 auto;width:1rem;height:1rem;border-radius:999px;background:var(--pillar-accent);box-shadow:0 0 0 7px var(--pillar-soft),0 0 30px var(--pillar-glow)}.biology-pillar-heading-text{min-width:0}.biology-pillar-kicker{margin:0 0 0.25rem;color:var(--pillar-accent);font-size:0.72rem}.biology-pillar-title{margin:0;color:var(--bio-text);font-size:clamp(1.35rem, 3vw, 2.2rem);line-height:1.12;font-weight:900;letter-spacing:-0.04em}.biology-card-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(min(100%, 285px), 1fr));gap:clamp(0.85rem, 2vw, 1.2rem)}.biology-matrix-card-link{display:block;min-width:0;color:inherit;text-decoration:none !important;border-radius:22px;outline:none}.biology-matrix-card-link:focus-visible{outline:2px solid var(--bio-focus);outline-offset:4px}.biology-matrix-card{position:relative;display:flex;flex-direction:column;min-height:285px;height:100%;padding:1.15rem;overflow:hidden;border:1px solid var(--bio-border);border-radius:22px;background:radial-gradient(circle at top right, var(--pillar-soft), transparent 46%),linear-gradient(180deg, rgba(255,255,255,0.038), rgba(255,255,255,0)),var(--bio-card);box-shadow:0 18px 42px rgba(0,0,0,0.23);transform:translateZ(0);transition:transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease}.biology-matrix-card::before{content:"";position:absolute;inset:0;opacity:0;pointer-events:none;background:linear-gradient(135deg, rgba(255,255,255,0.075), transparent 52%);transition:opacity 180ms ease}.biology-matrix-card-link:hover .biology-matrix-card,.biology-matrix-card-link:focus-visible .biology-matrix-card{transform:translateY(-5px);border-color:var(--pillar-accent);box-shadow:0 24px 60px rgba(0,0,0,0.34),0 0 28px var(--pillar-glow)}.biology-matrix-card-link:hover .biology-matrix-card::before,.biology-matrix-card-link:focus-visible .biology-matrix-card::before{opacity:1}.biology-card-topline,.biology-card-meta,.biology-card-footer,.biology-prereq-row{position:relative;z-index:1}.biology-card-topline{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:0.55rem;margin-bottom:0.95rem}.biology-difficulty-tag,.biology-status-tag,.biology-card-meta span,.biology-prereq-row span{display:inline-flex;align-items:center;min-height:28px;padding:0.32rem 0.62rem;border-radius:999px;font-size:0.7rem;font-weight:850;line-height:1;letter-spacing:0.045em;text-transform:uppercase}.biology-difficulty-tag{color:var(--pillar-accent);border:1px solid rgba(0,245,212,0.28);background:var(--pillar-soft)}.biology-status-tag{color:#bfdbfe;border:1px solid rgba(96,165,250,0.22);background:rgba(96,165,250,0.1)}.biology-card-title{position:relative;z-index:1;margin:0;color:var(--bio-text);font-size:clamp(1.05rem, 2vw, 1.28rem);line-height:1.28;font-weight:900;letter-spacing:-0.025em}.biology-card-excerpt{position:relative;z-index:1;margin:0.85rem 0 1rem;color:var(--bio-muted);font-size:0.94rem;line-height:1.62}.biology-card-meta{display:flex;flex-wrap:wrap;gap:0.45rem;margin-top:auto}.biology-card-meta span,.biology-prereq-row span{color:var(--bio-soft);border:1px solid rgba(148,163,184,0.13);background:rgba(15,23,42,0.5)}.biology-prereq-row{margin-top:0.7rem}.biology-card-footer{display:flex;align-items:center;justify-content:space-between;gap:0.8rem;margin-top:1rem;padding-top:1rem;border-top:1px solid rgba(148,163,184,0.12)}.biology-card-path{min-width:0;color:var(--bio-dim);font-size:0.76rem;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.biology-card-arrow{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:2.1rem;height:2.1rem;border-radius:999px;color:#020617;background:var(--pillar-accent);font-size:1.15rem;font-weight:950;transition:transform 180ms ease}.biology-matrix-card-link:hover .biology-card-arrow,.biology-matrix-card-link:focus-visible .biology-card-arrow{transform:translateX(4px)}.biology-empty-state{max-width:780px;margin:0 auto;padding:clamp(1.5rem, 5vw, 3rem);border:1px solid var(--bio-border-strong);border-radius:var(--bio-radius-lg);color:var(--bio-muted);background:var(--bio-panel);text-align:center}.biology-empty-state h2{margin:0 0 0.75rem;color:var(--bio-text)}.biology-empty-state code{color:var(--bio-focus);background:rgba(0,245,212,0.08);border-radius:6px;padding:0.08rem 0.32rem}@media (max-width: 1100px){.biology-hero-grid{grid-template-columns:1fr}.biology-zone-status{min-height:220px}.biology-zone-metrics{grid-template-columns:repeat(2, minmax(0, 1fr))}}@media (max-width: 720px){.biology-zone-shell{padding:0.75rem}.biology-zone-hero,.biology-pillar-section{border-radius:20px}.biology-hero-grid{padding:1.15rem}.biology-zone-actions,.biology-zone-action{width:100%}.biology-zone-metrics{grid-template-columns:1fr}.biology-pillar-index{position:static;border-radius:20px}.biology-pillar-index__links,.biology-pillar-index__links a{width:100%}.biology-pillar-heading{align-items:flex-start}.biology-matrix-card{min-height:auto}}@media (prefers-reduced-motion: reduce){.biology-zone-shell *,.biology-zone-shell *::before,.biology-zone-shell *::after{transition-duration:0.01ms !important;animation-duration:0.01ms !important;animation-iteration-count:1 !important;scroll-behavior:auto !important}.biology-matrix-card-link:hover .biology-matrix-card,.biology-matrix-card-link:focus-visible .biology-matrix-card,.biology-zone-action:hover,.biology-zone-action:focus-visible{transform:none}}