/* Tahapin landing page — shared styles */
:root {
  --ink: #0f2226;
  --ink-2: #33474c;
  --muted: #5d6f73;
  --paper: #fbfaf6;
  --card: #ffffff;
  --line: #e4e0d6;
  --teal: #0d5c57;
  --teal-2: #117a72;
  --teal-soft: #e6f3f0;
  --amber: #f3b23a;
  --amber-soft: #fff5dc;
  --red: #b93815;
  --red-soft: #fdeee7;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15, 34, 38, .06), 0 8px 24px rgba(15, 34, 38, .08);
  --maxw: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--teal-2); }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Top bar */
.topbar { position: sticky; top: 0; z-index: 20; background: rgba(251, 250, 246, .92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; height: 62px; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-mark { width: 30px; height: 30px; border-radius: 8px; background: var(--teal); display: grid; place-items: center; }
.brand-mark span { display: block; width: 4px; background: #fff; border-radius: 2px; margin: 0 1.5px; align-self: end; }
.brand-mark .bars { display: flex; align-items: flex-end; height: 16px; }
.brand-name { font-weight: 800; font-size: 19px; letter-spacing: -.2px; }
.brand-by { font-size: 12px; color: var(--muted); font-weight: 600; }
.topbar .btn { padding: 9px 16px; font-size: 15px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 10px; padding: 14px 22px; font-weight: 700; font-size: 16px; text-decoration: none; cursor: pointer; border: 2px solid transparent; transition: transform .08s ease, background .15s ease; font-family: inherit; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-2); }
.btn-ghost { background: transparent; color: var(--teal); border-color: var(--teal); }
.btn-ghost:hover { background: var(--teal-soft); }
.btn[disabled] { opacity: .6; cursor: progress; }

/* Hero */
.hero { padding: 44px 0 36px; }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 36px; align-items: center; }
.eyebrow { display: inline-block; background: var(--amber-soft); color: #6b4a00; border: 1px solid #f1d58f; border-radius: 999px; padding: 6px 14px; font-size: 14px; font-weight: 700; }
.hero h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.08; letter-spacing: -1px; margin: 18px 0 16px; }
.hero .lead { font-size: 19px; color: var(--ink-2); max-width: 36em; margin: 0 0 22px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 8px 0 12px; }
.micro { font-size: 14px; color: var(--muted); margin: 6px 0 0; }
.micro strong { color: var(--ink); }

/* Chain visual */
.chain { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin: 4px 0 22px; box-shadow: var(--shadow); }
.chain-title { font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: .6px; color: var(--muted); margin: 0 0 10px; }
.chain-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.pill { display: inline-block; padding: 6px 12px; border-radius: 999px; font-size: 14px; font-weight: 700; background: #f1efe9; color: var(--ink-2); border: 1px solid var(--line); }
.pill.warn { background: var(--red-soft); color: var(--red); border-color: #f5c9b8; }
.pill.ok { background: var(--teal-soft); color: var(--teal); border-color: #b9ddd5; }
.arrow { color: var(--muted); font-weight: 800; }
.chain-sep { height: 1px; background: var(--line); margin: 14px 0; }

/* Screenshot frame */
.shot { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); }
.shot-bar { height: 28px; background: #f3f1ec; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 6px; padding: 0 10px; }
.shot-bar i { width: 9px; height: 9px; border-radius: 50%; background: #d8d3c7; display: block; }
.shot-bar span { margin-left: 8px; font-size: 11px; color: var(--muted); font-weight: 600; }
.shot figcaption, .caption { font-size: 13px; color: var(--muted); padding: 10px 12px; border-top: 1px solid var(--line); background: #fcfbf8; }

/* Sections */
section { padding: 56px 0; }
.section-alt { background: #f4f2ec; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.kicker { font-size: 13px; font-weight: 800; letter-spacing: .8px; text-transform: uppercase; color: var(--teal-2); margin: 0 0 8px; }
h2 { font-size: clamp(27px, 4vw, 38px); line-height: 1.15; letter-spacing: -.5px; margin: 0 0 14px; }
h3 { font-size: 20px; line-height: 1.3; margin: 0 0 8px; }
.sub { color: var(--ink-2); max-width: 44em; margin: 0 0 28px; }

.grid-3 { display: grid; grid-template-columns: 1fr; gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.card p { margin: 0; color: var(--ink-2); }
.card .num { font-size: 13px; font-weight: 800; color: var(--red); letter-spacing: .5px; text-transform: uppercase; margin-bottom: 6px; display: block; }

/* Leak / calculator */
.leak-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.case { background: var(--red-soft); border: 1px solid #f5c9b8; border-radius: var(--radius); padding: 22px; }
.case .label { font-size: 13px; font-weight: 800; color: var(--red); text-transform: uppercase; letter-spacing: .6px; }
.case ul { list-style: none; padding: 0; margin: 12px 0; }
.case li { padding: 6px 0; border-bottom: 1px dashed #efc2b1; display: flex; justify-content: space-between; gap: 10px; }
.case li:last-child { border-bottom: 0; }
.case .big { font-size: clamp(30px, 5vw, 42px); font-weight: 800; color: var(--red); line-height: 1.1; margin: 10px 0 4px; }
.case small, .calc small { color: var(--muted); font-size: 13px; display: block; }
.calc { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.calc .fields { display: grid; grid-template-columns: 1fr; gap: 12px; margin: 12px 0 16px; }
.calc label { font-size: 14px; font-weight: 700; color: var(--ink-2); display: block; margin-bottom: 4px; }
.calc input { width: 100%; font: inherit; font-size: 18px; font-weight: 700; padding: 10px 12px; border: 1.5px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); }
.calc input:focus { outline: none; border-color: var(--teal-2); box-shadow: 0 0 0 3px var(--teal-soft); }
.calc .out { background: var(--amber-soft); border: 1px solid #f1d58f; border-radius: 12px; padding: 16px; }
.calc .out .v { font-size: clamp(26px, 4.5vw, 36px); font-weight: 800; color: var(--red); line-height: 1.15; }
.calc .out .pkg { margin-top: 10px; font-size: 15px; color: var(--ink-2); }
.calc .note { font-size: 13px; color: var(--muted); margin-top: 10px; }

/* Steps */
.steps { display: grid; grid-template-columns: 1fr; gap: 28px; }
.step { display: grid; grid-template-columns: 1fr; gap: 16px; align-items: center; }
.step-num { width: 38px; height: 38px; border-radius: 50%; background: var(--teal); color: #fff; font-weight: 800; display: grid; place-items: center; margin-bottom: 10px; }
.step p { color: var(--ink-2); margin: 0; }

.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.checks li { padding-left: 30px; position: relative; color: var(--ink-2); }
.checks li::before { content: ""; position: absolute; left: 0; top: 4px; width: 20px; height: 20px; border-radius: 50%; background: var(--teal-soft); border: 1.5px solid var(--teal-2); }
.checks li::after { content: ""; position: absolute; left: 6px; top: 9px; width: 8px; height: 5px; border-left: 2px solid var(--teal); border-bottom: 2px solid var(--teal); transform: rotate(-45deg); }

/* Pricing */
.pricing { display: grid; grid-template-columns: 1fr; gap: 14px; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; display: flex; flex-direction: column; }
.plan.hl { border: 2px solid var(--teal); }
.plan .pname { font-weight: 800; font-size: 15px; color: var(--teal); letter-spacing: .4px; text-transform: uppercase; }
.plan .vol { font-size: 19px; font-weight: 800; margin: 4px 0 12px; }
.plan .normal { color: var(--muted); font-size: 15px; }
.plan .normal s { text-decoration-thickness: 2px; }
.plan .founding { font-size: 30px; font-weight: 800; line-height: 1.1; margin: 4px 0 2px; }
.plan .per { font-size: 14px; color: var(--muted); }
.plan .tag { align-self: flex-start; margin-top: 12px; font-size: 12px; font-weight: 800; background: var(--amber-soft); color: #6b4a00; border: 1px solid #f1d58f; border-radius: 999px; padding: 3px 10px; }
.plan .talk { font-size: 22px; font-weight: 800; margin: 6px 0; }
.price-notes { margin-top: 18px; display: grid; gap: 8px; color: var(--ink-2); font-size: 15px; }

/* FAQ */
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin-bottom: 10px; }
.faq summary { cursor: pointer; font-weight: 700; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; font-weight: 800; color: var(--teal); }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 10px 0 2px; color: var(--ink-2); }

/* Form */
.form-card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 24px; box-shadow: var(--shadow); max-width: 720px; margin: 0 auto; }
.form-card h2 { margin-bottom: 6px; }
.form-grid { display: grid; grid-template-columns: 1fr; gap: 16px; margin-top: 18px; }
.field label, .field .flabel { display: block; font-weight: 700; font-size: 15px; margin-bottom: 6px; }
.field .hint { font-weight: 500; color: var(--muted); font-size: 13px; }
.field input[type=text], .field input[type=tel], .field select { width: 100%; font: inherit; font-size: 16px; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); appearance: none; }
.field select { background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%; background-size: 6px 6px; background-repeat: no-repeat; padding-right: 38px; }
.field input:focus, .field select:focus { outline: none; border-color: var(--teal-2); box-shadow: 0 0 0 3px var(--teal-soft); }
.radios { display: flex; flex-wrap: wrap; gap: 8px; }
.radios label { display: inline-flex; align-items: center; gap: 8px; border: 1.5px solid var(--line); border-radius: 999px; padding: 9px 16px; font-weight: 600; cursor: pointer; background: #fff; margin: 0; }
.radios input { accent-color: var(--teal); width: 17px; height: 17px; margin: 0; }
.radios label:has(input:checked) { border-color: var(--teal-2); background: var(--teal-soft); }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--ink-2); background: #f7f6f1; border: 1px solid var(--line); border-radius: 10px; padding: 12px; }
.consent input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--teal); flex: 0 0 auto; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-error { display: none; background: var(--red-soft); color: var(--red); border: 1px solid #f5c9b8; border-radius: 10px; padding: 12px; font-size: 14px; font-weight: 600; }
.form-error.show { display: block; }
.field.invalid input, .field.invalid select, .field.invalid .radios label { border-color: var(--red); }
.thanks { display: none; text-align: center; padding: 20px 6px; }
.thanks.show { display: block; }
.thanks .ok { width: 56px; height: 56px; border-radius: 50%; background: var(--teal-soft); border: 2px solid var(--teal-2); margin: 0 auto 14px; position: relative; }
.thanks .ok::after { content: ""; position: absolute; left: 17px; top: 14px; width: 18px; height: 10px; border-left: 3px solid var(--teal); border-bottom: 3px solid var(--teal); transform: rotate(-45deg); }

/* Footer */
footer { padding: 36px 0 90px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); }
footer a { color: var(--muted); }
.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }

/* Mobile sticky CTA */
.sticky-cta { position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: rgba(251, 250, 246, .96); border-top: 1px solid var(--line); display: flex; transition: transform .2s ease; }
.sticky-cta .btn { width: 100%; }
.sticky-cta.hide { transform: translateY(110%); }

/* Test banner */
.test-banner { display: none; background: #1d2b2f; color: #fff; text-align: center; font-size: 13px; font-weight: 700; padding: 6px; }
.test-banner.show { display: block; }

/* Privacy page */
.doc { max-width: 760px; margin: 0 auto; padding: 40px 20px 80px; }
.doc h1 { font-size: 34px; line-height: 1.15; margin: 0 0 8px; }
.doc h2 { font-size: 22px; margin: 28px 0 8px; }
.doc p, .doc li { color: var(--ink-2); }

@media (min-width: 720px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .calc .fields { grid-template-columns: repeat(3, 1fr); }
  .pricing { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr 1fr; }
  .form-grid .full { grid-column: 1 / -1; }
  .form-card { padding: 34px; }
}
@media (min-width: 980px) {
  .hero { padding: 64px 0 48px; }
  .hero-grid { grid-template-columns: 1.02fr 1fr; gap: 44px; }
  .leak-grid { grid-template-columns: .9fr 1.1fr; align-items: start; }
  .step { grid-template-columns: .85fr 1.15fr; gap: 36px; }
  .step:nth-child(even) { grid-template-columns: 1.15fr .85fr; }
  .step:nth-child(even) .step-text { order: 2; }
  .pricing { grid-template-columns: repeat(4, 1fr); }
  .sticky-cta { display: none; }
  footer { padding-bottom: 40px; }
}