*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#0a0a0a;--card:#141414;--border:#2a2a2a;--text:#e5e5e5;--sub:#888;--accent:#6c8cff;--accent2:#ff6c8c}
@media(prefers-color-scheme:light){:root{--bg:#f5f5f5;--card:#fff;--border:#e0e0e0;--text:#1a1a1a;--sub:#666;--accent:#4a6cf7;--accent2:#e94560}}
body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px}
h1{font-size:1.8rem;margin-bottom:8px;text-align:center}
.subtitle{color:var(--sub);font-size:.9rem;margin-bottom:48px;text-align:center}
.cards{display:flex;gap:24px;flex-wrap:wrap;justify-content:center;max-width:720px}
.card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:40px 32px;width:320px;text-decoration:none;color:var(--text);transition:all .25s;cursor:pointer;position:relative;overflow:hidden}
.card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 8px 32px rgba(108,140,255,.15)}
.card.custom:hover{border-color:var(--accent2);box-shadow:0 8px 32px rgba(255,108,140,.15)}
.card-icon{font-size:3rem;margin-bottom:16px}
.card h2{font-size:1.3rem;margin-bottom:8px}
.card p{color:var(--sub);font-size:.85rem;line-height:1.5}
.card .badge{display:inline-block;padding:4px 10px;border-radius:8px;font-size:.7rem;font-weight:600;margin-top:16px}
.card .badge.exam{background:rgba(108,140,255,.15);color:var(--accent)}
.card .badge.custom{background:rgba(255,108,140,.15);color:var(--accent2)}
.back{position:fixed;top:20px;left:20px;color:var(--sub);text-decoration:none;font-size:.85rem;display:flex;align-items:center;gap:4px}
.back:hover{color:var(--text)}
.footer{margin-top:48px;color:var(--sub);font-size:.75rem;text-align:center}
.badge.workflow{background:#5ac8fa20;color:#5ac8fa}.card.workflow{border-color:#5ac8fa40}.card.workflow:hover{border-color:#5ac8fa}