:root{
  --bg:#f5f7fa; --card:#fff; --ink:#152033; --muted:#64748b;
  --line:#e2e8f0; --brand:#0b5fd0; --brand-dark:#07408f; --accent:#eff6ff;
  --ok:#0f8a4d; --radius:10px;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
.muted{color:var(--muted);font-size:13px}

/* ---------- header ---------- */
.site-head{background:#fff;border-bottom:1px solid var(--line)}
.head-inner{display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;padding-block:14px}
.brand{display:flex;align-items:center;gap:11px;color:inherit}
.brand:hover{text-decoration:none}
.brand-mark{background:var(--brand);color:#fff;font-weight:700;letter-spacing:.5px;
  padding:9px 11px;border-radius:8px;font-size:14px}
.brand-text strong{display:block;font-size:15px;line-height:1.25}
.brand-text small{color:var(--muted);font-size:12px}
.nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-size:14px}
.curr{color:var(--muted);font-size:13px;background:var(--accent);
  padding:4px 10px;border-radius:999px}

/* ---------- blocks ---------- */
.hero{background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;border-radius:var(--radius);padding:30px 24px;margin-top:22px}
.hero h1{margin:0 0 6px;font-size:26px;line-height:1.25}
.hero p{margin:0;opacity:.92;font-size:14px}

.card{background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px;margin:18px 0}
.card h2{margin:0 0 4px;font-size:19px}
.card h3{margin:22px 0 6px;font-size:15px}
.card p,.card li{font-size:14px}

.grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}
label{display:block;font-size:13px;font-weight:600;margin-bottom:5px;color:#334155}
input,select{width:100%;padding:10px 11px;border:1px solid var(--line);
  border-radius:8px;font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus{outline:2px solid var(--brand);outline-offset:-1px;border-color:var(--brand)}

.btn{display:inline-block;background:var(--brand);color:#fff;border:0;
  padding:11px 22px;border-radius:8px;font:inherit;font-weight:600;cursor:pointer}
.btn:hover{background:var(--brand-dark);text-decoration:none;color:#fff}
.btn-lg{width:100%;padding:13px;font-size:15px}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.btn-ghost:hover{background:var(--accent);color:var(--brand-dark)}

/* ---------- flight list ---------- */
.flight{display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:16px 18px;margin-bottom:10px}
.flight-main{display:flex;align-items:center;gap:22px;flex-wrap:wrap;flex:1 1 340px}
.airline{min-width:130px}
.airline strong{display:block;font-size:14px}
.airline small{color:var(--muted);font-size:12px}
.times{display:flex;align-items:center;gap:12px}
.times b{font-size:17px;font-variant-numeric:tabular-nums}
.dur{color:var(--muted);font-size:12px;text-align:center;min-width:76px}
.dur span{display:block;border-top:1px solid var(--line);margin-top:3px;padding-top:3px}
.price{text-align:right;min-width:150px}
.price b{display:block;font-size:18px;color:var(--brand-dark)}
.price small{color:var(--muted);font-size:12px}

.tag{display:inline-block;background:var(--accent);color:var(--brand-dark);
  font-size:11px;padding:2px 8px;border-radius:999px;margin-top:4px}

/* ---------- summary ---------- */
.sum{width:100%;border-collapse:collapse;font-size:14px}
.sum td{padding:8px 0;border-bottom:1px solid var(--line)}
.sum td:last-child{text-align:right;font-variant-numeric:tabular-nums}
.sum tr:last-child td{border-bottom:0;font-weight:700;font-size:16px;padding-top:12px}

.note{background:var(--accent);border-left:3px solid var(--brand);
  padding:12px 14px;border-radius:0 8px 8px 0;font-size:13.5px;margin:16px 0}
.ok-box{background:#ecfdf3;border-left:3px solid var(--ok);
  padding:14px 16px;border-radius:0 8px 8px 0;margin:16px 0}
.ok-box strong{color:var(--ok)}

.steps{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 0;padding:0;list-style:none;font-size:13px}
.steps li{color:var(--muted)}
.steps li.on{color:var(--brand);font-weight:600}

/* ---------- footer ---------- */
.site-foot{background:#fff;border-top:1px solid var(--line);margin-top:40px;padding-block:28px 0}
.foot-grid{display:grid;gap:26px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));font-size:13.5px}
.foot-grid strong{display:block;margin-bottom:8px;font-size:14px}
.foot-grid p{margin:0 0 6px;color:#475569}
.foot-grid ul{margin:0;padding:0;list-style:none}
.foot-grid li{margin-bottom:5px}
.copy{border-top:1px solid var(--line);margin-top:24px;padding-block:14px;
  color:var(--muted);font-size:12.5px}

@media (max-width:640px){
  .hero{padding:22px 18px}
  .hero h1{font-size:21px}
  .price{text-align:left;min-width:0}
  .flight{align-items:flex-start}
}