:root{--bg:#071019;--panel:#101d28;--line:#27465c;--text:#eef7ff;--muted:#a8bdcc;--cyan:#36d6e7;--orange:#ff9f43;--locked:#73808a}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at top,#13283a 0,#071019 48%);color:var(--text);font-family:Arial,Helvetica,sans-serif;min-height:100vh}a{color:inherit}.wrap{width:min(1100px,92%);margin:auto}.hero{padding:56px 0 28px;text-align:center}.eyebrow{color:var(--orange);text-transform:uppercase;letter-spacing:.18em;font-weight:800;font-size:.78rem}.hero h1{font-size:clamp(2.2rem,7vw,4.8rem);margin:.2em 0 .15em;line-height:.95}.hero p{color:var(--muted);font-size:1.08rem;max-width:720px;margin:auto;line-height:1.6}.brand{color:var(--cyan)}.calendar{display:grid;grid-template-columns:repeat(7,1fr);gap:12px;padding:24px 0 60px}.card{min-height:128px;border:1px solid var(--line);border-radius:15px;background:rgba(16,29,40,.9);padding:15px;position:relative;transition:.2s}.card.open{display:block;text-decoration:none}.card.open:hover{transform:translateY(-3px);border-color:var(--cyan);box-shadow:0 8px 28px #0007}.daynum{font-size:1.6rem;font-weight:900}.topic{font-weight:700;margin-top:14px;line-height:1.25}.status{font-size:.78rem;color:var(--cyan);margin-top:9px;text-transform:uppercase;letter-spacing:.08em}.card.locked{color:var(--locked);background:#0b141c}.lock{font-size:1.45rem;position:absolute;right:14px;top:13px}.locked .topic{color:#71808b}.daily{max-width:780px;margin:38px auto 70px;padding:0 20px}.daily .box{background:rgba(16,29,40,.95);border:1px solid var(--line);border-radius:18px;padding:clamp(22px,5vw,42px);box-shadow:0 18px 50px #0006}.daily h1{font-size:clamp(2rem,6vw,3.5rem);margin:.15em 0 .5em}.social{font-size:1.25rem;line-height:1.65}.learn{border-top:1px solid var(--line);margin-top:30px;padding-top:24px;color:#d7e6ef;line-height:1.65}.challenge{margin-top:25px;padding:20px;border-left:4px solid var(--orange);background:#0b151e}.challenge strong{color:var(--orange)}.nav{display:flex;justify-content:space-between;gap:10px;margin-top:25px;flex-wrap:wrap}.btn{border:1px solid var(--line);padding:11px 15px;border-radius:9px;text-decoration:none;background:#0d1922}.btn:hover{border-color:var(--cyan)}footer{text-align:center;color:var(--muted);padding:0 15px 35px;font-size:.9rem}.lockedpage{text-align:center;padding:90px 20px}.lockedpage .big{font-size:4rem}.lockedpage h1{font-size:2.5rem}.lockedpage p{color:var(--muted);font-size:1.1rem}.note{margin:10px auto 30px;max-width:720px;color:var(--muted);text-align:center;font-size:.92rem}@media(max-width:800px){.calendar{grid-template-columns:repeat(3,1fr)}}@media(max-width:500px){.calendar{grid-template-columns:repeat(2,1fr)}.hero{padding-top:35px}}