/* Aerobook — green-on-slate theme. No framework, no CDN. */
:root {
  --green: #10b981;
  --green-bright: #34d399;
  --green-deep: #059669;
  --green-dim: rgba(16, 185, 129, 0.12);
  --ink: #0b1220;
  --panel: #101a2c;
  --panel-2: #0d1626;
  --line: rgba(148, 163, 184, 0.15);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --faint: #64748b;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: radial-gradient(1200px 600px at 80% -10%, rgba(16,185,129,.08), transparent 60%), var(--ink);
  color: var(--text);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  min-height: 100vh;
}
a { color: var(--green-bright); text-decoration: none; }
a:hover { color: #6ee7b7; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* Header */
header.site {
  position: sticky; top: 0; z-index: 40;
  background: rgba(11, 18, 32, .85); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 18px; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 21px; font-weight: 800; letter-spacing: -0.02em; color: #fff; }
.brand svg { display: block; }
.brand .book { color: var(--green-bright); }
.nav-links { display: flex; gap: 4px; margin-left: 16px; }
.nav-links a { padding: 8px 12px; border-radius: 9px; color: var(--muted); font-weight: 600; font-size: 14px; }
.nav-links a:hover { background: rgba(255,255,255,.05); color: #fff; }
.nav-links a.active { color: var(--green-bright); background: var(--green-dim); }
.powered { margin-left: auto; font-size: 12px; color: var(--faint); }
.powered strong { color: var(--muted); font-weight: 600; }

/* Hero */
.hero { padding: 46px 0 8px; }
.hero h1 { font-size: clamp(26px, 4vw, 40px); font-weight: 800; color: #fff; letter-spacing: -0.02em; }
.hero h1 em { font-style: normal; color: var(--green-bright); }
.hero p { margin-top: 10px; color: var(--muted); max-width: 640px; }

/* Stats strip */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 26px 0 6px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; }
.stat b { display: block; font-size: 24px; font-weight: 800; color: var(--green-bright); font-variant-numeric: tabular-nums; }
.stat span { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--faint); }

/* Search card */
.search-card { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 16px; margin: 18px 0; }
.search-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: 11px; text-transform: uppercase; letter-spacing: .07em; color: var(--faint); font-weight: 600; }
input[type=text], input[type=date], input[type=number] {
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px;
  color: var(--text); padding: 10px 12px; font: inherit; width: 100%;
}
input:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px var(--green-dim); }
.check { display: flex; align-items: center; gap: 8px; padding: 10px 4px; color: var(--muted); font-size: 14px; cursor: pointer; white-space: nowrap; }
.check input { accent-color: var(--green); width: 16px; height: 16px; }
.btn { border: none; border-radius: 10px; padding: 11px 20px; font: inherit; font-weight: 700; cursor: pointer; }
.btn-green { background: linear-gradient(180deg, var(--green-bright), var(--green)); color: #06281c; }
.btn-green:hover { filter: brightness(1.06); }
.btn-ghost { background: transparent; border: 1px solid var(--line); color: var(--muted); }
.btn-ghost:hover { color: #fff; border-color: var(--green); }

/* Chips + sections */
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 14px 0 10px; }
.chip { display: inline-flex; align-items: center; gap: 8px; background: var(--green-dim); border: 1px solid rgba(16,185,129,.35); color: var(--green-bright); border-radius: 999px; padding: 6px 14px; font-size: 13px; font-weight: 600; }
.chip .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green-bright); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1 } 50% { opacity: .35 } }
.chip a { color: inherit; text-decoration: underline; font-size: 12px; }
section { padding: 26px 0; }
h2 { font-size: 21px; font-weight: 800; color: #fff; letter-spacing: -0.01em; }
h2 small { font-size: 13px; font-weight: 500; color: var(--faint); margin-left: 8px; }

/* Leg cards */
.legs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; margin-top: 14px; }
.leg { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 18px; cursor: pointer; transition: border-color .15s, transform .15s; display: flex; flex-direction: column; }
.leg:hover { border-color: rgba(16,185,129,.5); transform: translateY(-2px); }
.leg .dist { align-self: flex-start; display: inline-flex; align-items: center; gap: 6px; background: var(--green-dim); color: var(--green-bright); border-radius: 999px; padding: 4px 10px; font-size: 12px; font-weight: 700; margin-bottom: 10px; }
.route { font-size: 22px; font-weight: 800; color: #fff; font-variant-numeric: tabular-nums; }
.route .arrow { color: var(--green); padding: 0 6px; }
.route small { font-size: 12px; color: var(--faint); font-weight: 500; margin-left: 6px; }
.cities { color: var(--muted); font-size: 13px; margin-top: 3px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.tag { background: rgba(255,255,255,.05); border-radius: 999px; padding: 3px 10px; font-size: 12px; color: var(--muted); }
.tag.conf { background: rgba(99,102,241,.12); color: #a5b4fc; }
.leg-foot { display: flex; justify-content: space-between; align-items: flex-end; margin-top: auto; padding-top: 14px; }
.when { font-size: 13px; color: var(--muted); }
.price { font-size: 18px; font-weight: 800; color: var(--green-bright); }
.price small { font-size: 12px; color: var(--faint); font-weight: 500; }

/* Empty / loading */
.empty { border: 1px dashed rgba(16,185,129,.35); background: var(--green-dim); border-radius: 16px; padding: 28px; text-align: center; color: var(--text); }
.empty h3 { color: #fff; margin-bottom: 6px; }
.empty p { color: var(--muted); font-size: 14px; }
.skeleton { border-radius: 16px; height: 150px; background: linear-gradient(100deg, var(--panel) 40%, var(--panel-2) 50%, var(--panel) 60%); background-size: 200% 100%; animation: shimmer 1.2s infinite; }
@keyframes shimmer { to { background-position: -200% 0 } }

/* Operators */
.op-panels { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 14px; }
.op-panel { border-radius: 16px; padding: 18px; border: 1px solid rgba(16,185,129,.3); background: var(--green-dim); }
.op-panel h3 { font-size: 14px; text-transform: uppercase; letter-spacing: .08em; color: var(--green-bright); margin-bottom: 12px; }
.op-row { display: flex; justify-content: space-between; align-items: center; background: var(--panel-2); border-radius: 12px; padding: 10px 14px; margin-bottom: 8px; cursor: pointer; }
.op-row:hover { background: var(--panel); }
.op-row .nm { font-weight: 700; color: #fff; font-size: 14px; }
.op-row .sub { color: var(--faint); font-size: 12px; }
.op-row b { color: var(--green-bright); font-size: 18px; font-variant-numeric: tabular-nums; }
table.ops { width: 100%; border-collapse: collapse; margin-top: 14px; background: var(--panel); border-radius: 16px; overflow: hidden; border: 1px solid var(--line); }
table.ops th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .07em; color: var(--faint); padding: 12px 14px; background: var(--panel-2); }
table.ops td { padding: 12px 14px; border-top: 1px solid var(--line); font-size: 14px; }
table.ops tr:hover td { background: rgba(16,185,129,.04); }
.mono { font-variant-numeric: tabular-nums; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.muted { color: var(--muted); } .faint { color: var(--faint); }
.verified { color: var(--green-bright); font-weight: 700; font-size: 12px; }

/* Pricing section */
.op-panels.three { grid-template-columns: 1fr 1fr 1fr; }
.feat-list { list-style: none; margin: 10px 0 16px; }
.feat-list li { padding: 5px 0 5px 22px; position: relative; color: var(--text); font-size: 14px; }
.feat-list li::before { content: "✓"; position: absolute; left: 2px; color: var(--green-bright); font-weight: 700; }
.op-panel .btn { display: inline-block; }
.featured-plan { border-color: var(--green); box-shadow: 0 0 30px rgba(16,185,129,.12); }

/* Modal */
.modal-back { position: fixed; inset: 0; background: rgba(3, 7, 14, .72); z-index: 60; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal-back.open { display: flex; }
.modal { background: var(--panel); border: 1px solid var(--line); border-radius: 20px; max-width: 560px; width: 100%; padding: 26px; position: relative; max-height: 90vh; overflow-y: auto; }
.modal .close { position: absolute; top: 14px; right: 16px; background: none; border: none; color: var(--faint); font-size: 22px; cursor: pointer; }
.modal dl { display: grid; grid-template-columns: 130px 1fr; gap: 10px 14px; margin: 18px 0; }
.modal dt { color: var(--faint); font-size: 13px; }
.modal dd { color: var(--text); font-size: 14px; }

footer.site { border-top: 1px solid var(--line); margin-top: 40px; padding: 26px 0 34px; color: var(--faint); font-size: 13px; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; }

.tabs { display: flex; gap: 6px; margin-top: 18px; }
.tab { border: 1px solid var(--line); background: transparent; color: var(--muted); border-radius: 999px; padding: 8px 18px; font: inherit; font-weight: 700; cursor: pointer; }
.tab.active { background: var(--green-dim); border-color: rgba(16,185,129,.4); color: var(--green-bright); }

@media (max-width: 900px) {
  .search-grid { grid-template-columns: 1fr 1fr 1fr; }
  .op-panels { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .search-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .route { font-size: 19px; }
}