/* TripBox landing — no framework, mobile-first */
:root {
  --primary: #2563eb;
  --primary-ink: #1d4ed8;
  --soft: #dbeafe;
  --text: #121826;
  --muted: #6b7280;
  --bg: #f6f7fb;
  --card: #ffffff;
  --line: #e5e7eb;
  --accent: #f59e0b;
  --plus: #7c3aed;
  --plus-soft: #ede9fe;
  --ok: #059669;
  --bad: #dc2626;
  --frame: #0f172a;
  --shadow: 0 1px 2px rgba(18, 24, 38, .06), 0 8px 24px rgba(18, 24, 38, .06);
  --radius: 16px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --primary: #3b82f6;
    --primary-ink: #93c5fd;
    --soft: #172554;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --bg: #0b1020;
    --card: #131a2e;
    --line: #232c45;
    --plus: #a78bfa;
    --plus-soft: #2e1065;
    --ok: #34d399;
    --bad: #f87171;
    --frame: #020617;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font: 16px/1.6 var(--font);
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 12px; letter-spacing: -.01em; }
h1 { font-size: clamp(32px, 7vw, 54px); letter-spacing: -.02em; }
h2 { font-size: clamp(26px, 4.5vw, 38px); }
h3 { font-size: 18px; }
p { margin: 0 0 12px; }
.muted { color: var(--muted); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
section { padding: 64px 0; }
.section-head { max-width: 680px; margin: 0 auto 40px; text-align: center; }
.section-head p { color: var(--muted); font-size: 18px; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--primary); background: var(--soft); padding: 4px 10px; border-radius: 999px; margin-bottom: 14px;
}
.eyebrow.plus { color: var(--plus); background: var(--plus-soft); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; z-index: 10; background: var(--card); padding: 8px 12px; border-radius: 8px; }

/* Header */
.top {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(180%) blur(12px); -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; gap: 12px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; color: var(--text); text-decoration: none; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.top nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.top nav a.link { display: none; color: var(--text); text-decoration: none; font-size: 15px; padding: 8px 10px; border-radius: 8px; }
.top nav a.link:hover { background: var(--soft); }
.lang { display: flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; font-size: 13px; font-weight: 700; }
.lang a, .lang span { padding: 5px 10px; text-decoration: none; color: var(--muted); }
.lang span { background: var(--primary); color: #fff; }
.top .btn { padding: 8px 14px; font-size: 14px; }
@media (min-width: 860px) { .top nav a.link { display: inline-block; } }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 20px; border-radius: 12px; font-weight: 700; font-size: 16px; text-decoration: none;
  border: 1px solid transparent; cursor: pointer; transition: transform .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: #1d4ed8; }
.btn-ghost { background: var(--card); color: var(--text); border-color: var(--line); }
.btn-plus { background: var(--plus); color: #fff; }
.btn[aria-disabled="true"] { opacity: .6; cursor: default; transform: none; }
.btn small { font-weight: 600; font-size: 12px; opacity: .85; }
.badge-soon { font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .04em; background: var(--soft); color: var(--primary); padding: 2px 6px; border-radius: 6px; }
.ctas { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.ctas .btn { flex: 1 1 100%; }
@media (min-width: 520px) { .ctas .btn { flex: 0 0 auto; } }

/* Hero */
.hero { padding: 40px 0 56px; background: radial-gradient(1200px 500px at 80% -10%, color-mix(in srgb, var(--primary) 18%, transparent), transparent 70%); }
.hero .wrap { display: grid; gap: 40px; align-items: center; }
.hero .lead { font-size: 19px; color: var(--muted); max-width: 560px; }
.hero h1 span { color: var(--primary); }
.trust { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 20px; font-size: 14px; color: var(--muted); padding: 0; list-style: none; }
.trust li::before { content: "✓ "; color: var(--ok); font-weight: 800; }
@media (min-width: 900px) {
  .hero { padding: 72px 0 88px; }
  .hero .wrap { grid-template-columns: 1.15fr .85fr; }
}

/* Phone frame */
.phone {
  width: min(300px, 78vw); margin: 0 auto; border-radius: 40px; padding: 10px;
  background: var(--frame); box-shadow: 0 30px 60px -20px rgba(37, 99, 235, .45), var(--shadow);
}
.phone img { border-radius: 31px; width: 100%; aspect-ratio: 560 / 1194; object-fit: cover; object-position: top; background: #f6f7fb; }
.phone.sm { width: min(240px, 70vw); border-radius: 34px; padding: 8px; box-shadow: var(--shadow); }
.phone.sm img { border-radius: 27px; aspect-ratio: 560 / 900; }

/* Steps */
.steps { display: grid; gap: 20px; counter-reset: step; }
.step { background: var(--card); border-radius: var(--radius); padding: 24px 20px 0; box-shadow: var(--shadow); overflow: hidden; display: flex; flex-direction: column; }
.step-num { counter-increment: step; width: 34px; height: 34px; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 800; display: grid; place-items: center; margin-bottom: 12px; }
.step-num::before { content: counter(step); }
.step p { color: var(--muted); }
.step .phone { margin-top: auto; border-radius: 30px 30px 0 0; padding: 8px 8px 0; width: min(230px, 70vw); box-shadow: none; }
.step .phone img { border-radius: 23px 23px 0 0; aspect-ratio: 560 / 640; }
@media (min-width: 820px) { .steps { grid-template-columns: repeat(3, 1fr); } }

/* Features */
.alt { background: var(--card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.grid { display: grid; gap: 14px; grid-template-columns: 1fr; }
@media (min-width: 560px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .grid { grid-template-columns: repeat(3, 1fr); } }
.card { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.alt .card { background: var(--bg); }
.card h3 { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.card p { color: var(--muted); margin: 0; font-size: 15px; }
.ico { flex: none; width: 38px; height: 38px; border-radius: 10px; background: var(--soft); display: grid; place-items: center; font-size: 20px; }
.tag-plus { font-size: 11px; font-weight: 800; color: var(--plus); background: var(--plus-soft); padding: 2px 6px; border-radius: 6px; margin-left: auto; }

/* Split sections */
.split { display: grid; gap: 36px; align-items: center; }
.split ul.checks { padding: 0; list-style: none; margin: 18px 0 0; }
.split ul.checks li { padding-left: 28px; position: relative; margin-bottom: 10px; }
.split ul.checks li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--primary); font-weight: 800; }
@media (min-width: 900px) {
  .split { grid-template-columns: 1fr 1fr; gap: 64px; }
  .split.rev > :first-child { order: 2; }
}

/* Mock: email */
.mock { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--line); padding: 18px; font-size: 15px; }
.mock + .mock { margin-top: 14px; }
.mail-head { display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; font-size: 14px; padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.mail-head b { color: var(--muted); font-weight: 600; }
.addr { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13.5px; background: var(--soft); color: var(--primary-ink); padding: 2px 6px; border-radius: 6px; word-break: break-all; }
.arrow { text-align: center; font-size: 22px; color: var(--muted); margin: 10px 0; }
.row { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.row:last-child { border-bottom: 0; }
.row .ico { width: 34px; height: 34px; font-size: 17px; }
.row div { flex: 1; min-width: 0; }
.row strong { display: block; font-size: 15px; }
.row span.sub { font-size: 13px; color: var(--muted); }
.amt { font-weight: 800; white-space: nowrap; }
.amt.pos { color: var(--ok); }
.amt.neg { color: var(--bad); }
.mock-title { font-weight: 800; display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.mock-title small { font-weight: 600; color: var(--muted); font-size: 13px; }
.settle { margin-top: 12px; background: var(--soft); color: var(--primary-ink); padding: 10px 12px; border-radius: 12px; font-size: 14px; font-weight: 600; }

/* Pricing */
.plans { display: grid; gap: 18px; max-width: 880px; margin: 0 auto; }
@media (min-width: 760px) { .plans { grid-template-columns: 1fr 1fr; } }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; box-shadow: var(--shadow); display: flex; flex-direction: column; }
.plan.featured { border: 2px solid var(--plus); position: relative; }
.plan .ribbon { position: absolute; top: -13px; left: 24px; background: var(--plus); color: #fff; font-size: 12px; font-weight: 800; padding: 4px 10px; border-radius: 999px; }
.price { font-size: 40px; font-weight: 800; letter-spacing: -.02em; margin: 6px 0 2px; }
.price small { font-size: 16px; font-weight: 600; color: var(--muted); }
.plan ul { list-style: none; padding: 0; margin: 18px 0 24px; flex: 1; }
.plan li { padding: 7px 0 7px 28px; position: relative; border-bottom: 1px dashed var(--line); font-size: 15px; }
.plan li:last-child { border-bottom: 0; }
.plan li::before { content: "✓"; position: absolute; left: 2px; color: var(--primary); font-weight: 800; }
.plan.featured li::before { color: var(--plus); }
.plan .btn { width: 100%; }
.note { text-align: center; color: var(--muted); font-size: 14px; margin-top: 18px; }

/* FAQ */
.faq { max-width: 760px; margin: 0 auto; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 10px; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 48px 18px 20px; font-weight: 700; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font-size: 22px; color: var(--primary); font-weight: 600; }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 20px 18px; margin: 0; color: var(--muted); }

/* Final CTA */
.final { text-align: center; }
.final-box { background: linear-gradient(135deg, #2563eb, #3b82f6 55%, #38bdf8); color: #fff; border-radius: 24px; padding: 48px 20px; }
.final-box p { opacity: .9; font-size: 18px; max-width: 560px; margin: 0 auto; }
.final .ctas { justify-content: center; }
.final .btn-primary { background: #fff; color: #1d4ed8; }
.final .btn-ghost { background: rgba(255, 255, 255, .14); color: #fff; border-color: rgba(255, 255, 255, .35); }
.final .badge-soon { background: rgba(255, 255, 255, .2); color: #fff; }

/* Footer */
footer { padding: 32px 0 48px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; justify-content: space-between; }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
footer a { color: var(--muted); }
footer a:hover { color: var(--primary); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}