:root{--teal:#178ea2;--navy:#17324d;--bg:#f4f7f9;--line:#dbe3e8;--white:#fff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:#263746;font-family:Arial,Helvetica,sans-serif}.wrap{width:min(1100px,92%);margin:auto}.hero{background:linear-gradient(120deg,#15324d,#178ea2);color:#fff;padding:26px 0;box-shadow:0 2px 10px #0002}.hero .wrap{display:flex;justify-content:space-between;align-items:center}.brand{font-size:26px;font-weight:700;letter-spacing:.4px}.brand span{font-size:17px}.tag{opacity:.9}.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:25px;margin:30px 0;box-shadow:0 7px 25px #17324d12}h1{margin:0 0 8px;color:var(--teal);font-size:30px}.intro,.summary{color:#62717d}.booking-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;align-items:end;margin-top:22px}.booking-grid label{font-size:13px;font-weight:700}.booking-grid input,.booking-grid select{display:block;width:100%;margin-top:7px;padding:13px 10px;border:1px solid #cbd6dc;border-radius:8px;background:#fff;font-size:15px}.booking-grid button,.room-card button{border:0;border-radius:8px;background:var(--teal);color:#fff;padding:14px 18px;font-size:15px;font-weight:700;cursor:pointer}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:0 0 40px}.info-grid div{background:#fff;padding:20px;border-radius:12px;border:1px solid var(--line)}.info-grid strong,.info-grid span{display:block}.info-grid strong{color:var(--navy);margin-bottom:7px}.info-grid span{font-size:14px;color:#667681;line-height:1.45}footer{text-align:center;padding:24px;color:#73818b;font-size:13px}.back{display:inline-block;margin-top:26px;color:var(--teal);text-decoration:none;font-weight:700}.rooms{display:grid;gap:18px;margin-bottom:40px}.room-card{display:grid;grid-template-columns:220px 1fr;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 5px 20px #17324d0e}.room-photo{min-height:180px;background:linear-gradient(135deg,#dbe9ef,#f3f7f8);display:grid;place-items:center;color:#78909c;font-weight:700}.room-body{padding:20px}.room-body h2{margin:0;color:var(--teal)}.room-body p{color:#667681}.prices{display:flex;justify-content:space-between;gap:20px;margin:20px 0 7px}.prices span{font-size:14px}.prices b,.prices strong{display:block;margin-top:5px;font-size:21px;color:var(--navy)}.room-body small{color:#778791}.room-body button{display:block;margin:18px 0 0 auto;opacity:.55;cursor:not-allowed}.alert{padding:14px;background:#fff3cd;border-radius:8px;color:#6d5b18}@media(max-width:850px){.booking-grid{grid-template-columns:1fr 1fr}.booking-grid button{grid-column:1/-1}.info-grid{grid-template-columns:1fr}.room-card{grid-template-columns:1fr}.hero .wrap{display:block}.tag{margin-top:5px}.prices{display:block}.prices span{margin-bottom:12px}}