:root {
  --ink: #0b1736; --cobalt: #2448d8; --contrail: #bfd3ff; --paper: #f6f7f9; --aluminum: #c9d1dc;
  --beacon: #d42a24; --slate: #4a5468; --white: #fff;
  --display: 'Archivo Expanded', 'Archivo', system-ui, sans-serif;
  --body: 'Instrument Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'Martian Mono', ui-monospace, monospace;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.5 var(--body); }
a { color: var(--cobalt); }
main { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
.top { display: flex; justify-content: space-between; align-items: center; max-width: 1040px; margin: 0 auto; padding: 18px 20px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font: 800 18px/1 var(--display); font-stretch: 125%; letter-spacing: .04em; }
.logo { width: 34px; height: 28px; color: var(--cobalt); }
.langs { display: flex; gap: 4px; font: 400 12px/1 var(--mono); }
.langs a, .langs span { padding: 10px 8px; min-width: 44px; text-align: center; border-radius: 8px; text-decoration: none; color: var(--slate); }
.langs span { background: var(--ink); color: var(--paper); }
.langs a:hover { background: var(--white); }
.hero { padding: 56px 0 40px; max-width: 760px; }
.badge { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 20px; padding: 6px 12px; border-radius: 99px; background: var(--ink); color: var(--contrail); font: 400 12px/1.4 var(--mono); text-transform: uppercase; letter-spacing: .06em; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--contrail); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .35; } }
h1, h2, h3 { font-family: var(--display); font-stretch: 125%; font-weight: 800; letter-spacing: -.01em; }
h1 { font-size: clamp(32px, 6vw, 56px); line-height: 1.05; margin: 0 0 20px; }
h2 { font-size: clamp(24px, 4vw, 34px); line-height: 1.1; margin: 0 0 12px; }
h3 { font-size: 18px; line-height: 1.2; margin: 0 0 8px; }
.lead { font-size: 19px; color: var(--slate); margin: 0 0 16px; max-width: 680px; }
.tagline { font: 400 14px/1.4 var(--mono); color: var(--cobalt); margin: 0 0 28px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 28px; border: 0; border-radius: 12px; background: var(--cobalt); color: var(--paper); font: 600 17px/1 var(--body); text-decoration: none; cursor: pointer; transition: transform .15s ease-out, background .15s; }
.btn:hover { background: #1d3bb8; }
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .6; cursor: progress; }
.offer { position: relative; overflow: hidden; background: var(--ink); color: var(--paper); border-radius: 20px; padding: 36px 32px; margin: 8px 0 32px; }
.offer h2 { color: var(--contrail); }
.offer p { margin: 0; max-width: 620px; font-size: 18px; }
.lines { position: absolute; right: -40px; top: 0; bottom: 0; width: 260px; background: linear-gradient(105deg, transparent 38%, var(--cobalt) 38% 52%, transparent 52% 62%, rgba(191,211,255,.35) 62% 76%, transparent 76%); pointer-events: none; }
.features { list-style: none; padding: 0; margin: 0 0 48px; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.features li { background: var(--white); border: 1px solid var(--aluminum); border-radius: 16px; padding: 22px; }
.features p { margin: 0; color: var(--slate); }
.signup { background: var(--white); border: 1px solid var(--aluminum); border-radius: 20px; padding: 32px; margin-bottom: 48px; }
form { display: grid; gap: 20px; }
.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.field { display: grid; gap: 6px; font-weight: 600; font-size: 15px; }
.field em { font-weight: 400; font-style: normal; color: var(--slate); }
input[type=email], input[type=text], select { width: 100%; min-height: 48px; padding: 10px 14px; border: 1px solid var(--aluminum); border-radius: 10px; background: var(--paper); color: var(--ink); font: 400 17px/1.3 var(--body); }
input:focus-visible, select:focus-visible, .chip input:focus-visible + span, .btn:focus-visible, a:focus-visible { outline: 3px solid var(--cobalt); outline-offset: 2px; }
fieldset { border: 0; padding: 0; margin: 0; }
legend { font-weight: 600; font-size: 15px; margin-bottom: 8px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.chip span { display: inline-flex; align-items: center; min-height: 44px; padding: 0 16px; border: 1px solid var(--aluminum); border-radius: 99px; background: var(--paper); cursor: pointer; font-size: 15px; }
.chip input:checked + span { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; }
.check input { width: 22px; height: 22px; margin-top: 1px; accent-color: var(--cobalt); flex: none; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.error { margin: 0; color: var(--beacon); font-weight: 600; }
.thanks { padding: 24px; border-radius: 14px; background: var(--contrail); }
.thanks h3 { font-size: 24px; }
.doc { max-width: 720px; padding-top: 32px; padding-bottom: 48px; }
.doc h2 { font-size: 20px; margin-top: 28px; }
.foot { max-width: 1040px; margin: 0 auto; padding: 24px 20px 40px; color: var(--slate); font-size: 14px; border-top: 1px solid var(--aluminum); }
.foot p { margin: 6px 0; }
.offer h2, .offer p { position: relative; z-index: 1; }
@media (max-width: 560px) {
  .signup, .offer { padding: 24px 18px; }
  .lines { width: 70px; right: -20px; opacity: .45; }
  .offer h2, .offer p { padding-right: 36px; }
  .brand { font-size: 15px; gap: 8px; }
  .logo { width: 28px; height: 24px; }
  .langs { gap: 0; }
  .langs a, .langs span { min-width: 40px; padding: 12px 4px; }
  .top { padding: 14px 16px; gap: 8px; }
}
@media (prefers-reduced-motion: reduce) { .dot { animation: none; } .btn { transition: none; } }
.hint { display: block; font-weight: 400; font-style: normal; color: var(--slate); font-size: 14px; margin-top: 2px; }