:root{--primary:#08668c;--dark:#083a54;--green:#2f6b3a;--bg:#f4f7f9;--text:#18313d}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--primary);text-decoration:none}.site-header{display:flex;justify-content:space-between;align-items:center;padding:12px 5%;background:#fff;box-shadow:0 2px 15px #00000012;position:sticky;top:0;z-index:10}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px}.brand img{width:58px;height:58px;object-fit:contain;border-radius:50%}
nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.container{max-width:1180px;margin:auto;padding:34px 20px;min-height:75vh}
.hero{background:linear-gradient(135deg,#e9f7fb,#eff8ee);padding:40px;border-radius:24px;display:grid;grid-template-columns:1.2fr 1fr;gap:30px;align-items:center}
.hero h1{font-size:46px;line-height:1.08;margin:8px 0 15px}.eyebrow{letter-spacing:3px;font-weight:700;color:var(--green)}
.search-card,.auth-card{background:#fff;padding:24px;border-radius:18px;box-shadow:0 10px 30px #00000012}.auth-card{max-width:520px;margin:25px auto}
label{display:block;font-weight:700;margin:12px 0}input,select{width:100%;padding:12px;border:1px solid #ccd7dc;border-radius:10px;margin-top:6px}
button,.button{background:var(--primary);color:#fff;border:0;padding:12px 18px;border-radius:10px;font-weight:700;cursor:pointer;display:inline-block}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:30px 0}.features article,.trip-card{background:#fff;border-radius:16px;padding:20px;box-shadow:0 5px 20px #0000000b}
.trip-list{display:grid;gap:16px}.trip-card{display:flex;justify-content:space-between;gap:20px}.seat-grid{display:grid;grid-template-columns:repeat(5,minmax(58px,1fr));gap:12px;margin:24px 0}
.seat{margin:0}.seat input{display:none}.seat span{display:flex;flex-direction:column;align-items:center;justify-content:center;border:2px solid #8fb8c9;border-radius:10px;padding:9px;background:#fff}
.seat input:checked+span{background:var(--green);color:#fff}.seat.booked span{background:#ddd;border-color:#bbb}.seat.held span{background:#ffe1a6;border-color:#d79b2e}
.seat small{font-size:11px}.alert{background:#fff0f0;border:1px solid #f0b5b5;color:#8c2020;padding:12px;border-radius:10px}.empty,.map-placeholder{padding:30px;background:#fff;border-radius:15px}
.map-placeholder{height:300px;display:grid;place-items:center;margin-top:20px}.muted{color:#6a7d86;font-size:14px}.inline{display:inline}.link-button{background:none;color:var(--primary);padding:0}.footer{text-align:center;padding:25px;background:var(--dark);color:#fff}.footer a{color:#fff}
@media(max-width:800px){.hero{grid-template-columns:1fr}.hero h1{font-size:34px}.features{grid-template-columns:1fr 1fr}.site-header{align-items:flex-start}.trip-card{flex-direction:column}}
@media(max-width:520px){.features{grid-template-columns:1fr}.seat-grid{grid-template-columns:repeat(4,1fr)}nav{gap:10px;font-size:14px}}