:root{--teal:#0f766e;--teal2:#14b8a6;--coral:#fb7185;--ink:#0f172a;--mut:#64748b;--bg:#fffbeb;--card:#fff;--line:#e2e8f0;--radius:20px}
*{box-sizing:border-box}
html{font-family:'Be Vietnam Pro',Inter,system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}
body{margin:0;background:var(--bg);color:var(--ink);line-height:1.6}
a{color:var(--teal)}
header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);z-index:10}
.nav{max-width:1120px;margin:auto;display:flex;align-items:center;gap:18px;padding:14px 20px;flex-wrap:wrap}
.logo{font-weight:900;font-size:22px}.logo span{color:var(--teal)}
.nav a{text-decoration:none;color:var(--ink);font-weight:600;font-size:14px}
.btn{background:var(--teal);color:#fff!important;padding:11px 20px;border-radius:999px;display:inline-block;text-decoration:none;border:none;cursor:pointer;font-weight:700;font-family:inherit}
.btn-coral{background:var(--coral)}
.wrap{max-width:1120px;margin:auto;padding:24px 20px 60px}
.hero{background:linear-gradient(135deg,#ccfbf1,#fef9c3);border-radius:28px;padding:36px;display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
.hero h1{font-size:44px;line-height:1.15;margin:12px 0}
.hero p{color:var(--mut);font-size:17px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 4px 20px rgba(0,0,0,.04)}
.card h3{margin:8px 0}.card p{color:var(--mut);font-size:15px;line-height:1.65}
.badge{display:inline-block;background:#fef3c7;padding:6px 12px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.02em}
.sos{width:180px;height:180px;border-radius:50%;background:var(--coral);color:#fff;border:8px solid #fecdd3;font-size:30px;font-weight:900;cursor:pointer;box-shadow:0 10px 30px rgba(251,113,133,.4);font-family:inherit}
input,select,textarea{width:100%;padding:12px;border:1px solid var(--line);border-radius:12px;font-size:15px;font-family:inherit}
table{width:100%;border-collapse:collapse;background:#fff;border-radius:16px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
.quiz-opt{display:block;width:100%;text-align:left;margin:8px 0;padding:14px;border:2px solid var(--line);border-radius:14px;background:#fff;cursor:pointer;font-size:15px;font-family:inherit}
.quiz-opt.correct{border-color:#22c55e;background:#f0fdf4}.quiz-opt.wrong{border-color:#ef4444;background:#fef2f2}
footer{border-top:1px solid var(--line);padding:20px;text-align:center;color:var(--mut);font-size:14px}
.support-fab{position:fixed;right:18px;bottom:18px;background:#0f766e;color:#fff!important;padding:14px 18px;border-radius:999px;text-decoration:none;font-weight:800;box-shadow:0 8px 24px rgba(0,0,0,.2);z-index:99}
@media(max-width:760px){.hero{grid-template-columns:1fr}.hero h1{font-size:32px}.grid{grid-template-columns:1fr}.nav{gap:10px}}

.tabs{display:flex;gap:8px;flex-wrap:wrap}.tab{padding:10px 16px;border:1px solid var(--line);border-radius:999px;background:#fff;cursor:pointer;font-weight:700}.tab.active{background:var(--teal);color:#fff}.kid-card{display:flex;gap:12px;align-items:center}.dot{width:12px;height:12px;border-radius:50%;background:#22c55e}.dot.warn{background:#f59e0b}.dot.danger{background:#ef4444}.dot.off{background:#94a3b8}