:root {
  --bg: #08111f;
  --bg-soft: #0d1828;
  --card: rgba(13, 25, 42, 0.72);
  --line: rgba(255, 255, 255, 0.09);
  --text: #f7fbff;
  --muted: #9fb0c5;
  --cyan: #5eead4;
  --blue: #6ea8ff;
  --violet: #a78bfa;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }

.page-shell {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background:
    radial-gradient(circle at 72% 18%, rgba(93, 234, 212, 0.09), transparent 24%),
    radial-gradient(circle at 22% 10%, rgba(110, 168, 255, 0.08), transparent 22%),
    linear-gradient(180deg, #08111f 0%, #091423 55%, #07101d 100%);
}

.container {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.8), transparent 72%);
  pointer-events: none;
}

.ambient {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: .25;
  pointer-events: none;
}
.ambient-a { width: 360px; height: 360px; background: #3b82f6; left: -180px; top: 160px; }
.ambient-b { width: 300px; height: 300px; background: #14b8a6; right: -120px; top: 80px; }

.site-header {
  height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 40px; height: 40px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: linear-gradient(145deg, rgba(94,234,212,.2), rgba(110,168,255,.12));
  border: 1px solid rgba(94,234,212,.22);
  box-shadow: inset 0 1px rgba(255,255,255,.08);
}
.brand-mark svg { width: 22px; fill: none; stroke: var(--cyan); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.brand-copy { font-size: 20px; letter-spacing: -.04em; }
.brand-copy strong { font-weight: 800; }
.brand-copy span { color: #b8c5d4; font-weight: 500; }

.nav-actions { display: flex; align-items: center; gap: 24px; }
.nav-link { color: #a9b8c9; font-size: 14px; transition: color .2s ease; }
.nav-link:hover { color: white; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 13px;
  font-weight: 700;
  letter-spacing: -.01em;
  transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-small { min-height: 42px; padding: 0 17px; font-size: 14px; }
.button-ghost { border: 1px solid var(--line); background: rgba(255,255,255,.035); color: #e7eef8; }
.button-ghost:hover { border-color: rgba(94,234,212,.35); background: rgba(94,234,212,.07); }
.button-primary {
  min-height: 56px;
  padding: 0 23px;
  color: #05131b;
  background: linear-gradient(135deg, #7ff3df 0%, #6faeff 100%);
  box-shadow: 0 14px 36px rgba(79, 194, 211, .19);
}
.button-primary:hover { box-shadow: 0 18px 48px rgba(79,194,211,.28); }
.button-primary svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.button-secondary {
  min-height: 50px;
  padding: 0 21px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
}

.hero {
  min-height: 650px;
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  align-items: center;
  gap: 60px;
  padding: 72px 0 52px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #c4d3e3;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: .02em;
  padding: 8px 12px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 999px;
  background: rgba(255,255,255,.035);
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%; background: #5eead4;
  box-shadow: 0 0 0 5px rgba(94,234,212,.08), 0 0 18px rgba(94,234,212,.5);
}

.hero h1 {
  margin: 26px 0 22px;
  font-size: clamp(56px, 6vw, 88px);
  line-height: .98;
  letter-spacing: -.065em;
  font-weight: 790;
}
.gradient-text {
  background: linear-gradient(90deg, #f7fbff 8%, #96d9ff 45%, #7ff0dc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-text {
  max-width: 600px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.72;
  margin: 0;
}

.hero-actions { display: flex; align-items: center; gap: 24px; margin-top: 32px; }
.text-link { color: #c8d4e2; font-size: 14px; font-weight: 650; border-bottom: 1px solid rgba(255,255,255,.18); padding-bottom: 4px; }
.text-link:hover { color: white; border-color: var(--cyan); }

.trust-row { display: flex; gap: 34px; margin-top: 42px; }
.trust-item { display: flex; align-items: center; gap: 11px; }
.trust-icon {
  width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center;
  color: #9feadc; background: rgba(94,234,212,.055); border: 1px solid rgba(94,234,212,.12);
}
.trust-icon svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.trust-item span:last-child { display: flex; flex-direction: column; gap: 3px; }
.trust-item strong { font-size: 13px; }
.trust-item small { color: #7f91a7; font-size: 12px; }

.hero-visual { position: relative; display: grid; place-items: center; min-height: 520px; }
.visual-glow {
  position: absolute;
  width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(82,186,218,.26), rgba(93,106,245,.08) 48%, transparent 72%);
  filter: blur(6px);
}
.mail-card {
  position: relative;
  width: min(455px, 100%);
  min-height: 500px;
  border-radius: 28px;
  padding: 20px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.085), rgba(255,255,255,.025)),
    rgba(9, 20, 34, .86);
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: var(--shadow), inset 0 1px rgba(255,255,255,.05);
  backdrop-filter: blur(20px);
  transform: perspective(1200px) rotateY(-6deg) rotateX(2deg);
}
.mail-card::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: 27px;
  background: linear-gradient(145deg, rgba(94,234,212,.08), transparent 30%, rgba(110,168,255,.05));
  pointer-events: none;
}
.mail-card-top { display: flex; align-items: center; justify-content: space-between; }
.window-dots { display: flex; gap: 7px; }
.window-dots i { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,.16); }
.mini-badge { font-size: 10px; font-weight: 800; letter-spacing: .16em; color: #8ea0b7; }

.mail-graphic { height: 245px; display: grid; place-items: center; }
.envelope { position: relative; width: 210px; height: 145px; filter: drop-shadow(0 22px 30px rgba(0,0,0,.26)); }
.envelope-back { position: absolute; inset: 22px 0 0; border-radius: 18px; background: linear-gradient(145deg, #bff8ef, #7db8ff); }
.envelope-paper {
  position: absolute; left: 28px; right: 28px; top: 0; height: 120px; border-radius: 14px;
  background: linear-gradient(180deg, #ffffff, #dfeaf7); padding: 29px 24px;
  box-shadow: 0 10px 30px rgba(14,34,52,.16);
}
.envelope-paper i { display: block; height: 6px; border-radius: 10px; background: #a9bdd2; margin-bottom: 12px; }
.envelope-paper i:nth-child(1) { width: 76%; }
.envelope-paper i:nth-child(2) { width: 100%; opacity: .65; }
.envelope-paper i:nth-child(3) { width: 62%; opacity: .42; }
.envelope-front {
  position: absolute; left: 0; right: 0; bottom: 0; height: 110px; overflow: hidden; border-radius: 0 0 18px 18px;
  background: linear-gradient(160deg, rgba(94,234,212,.96), rgba(100,154,255,.96));
  clip-path: polygon(0 0, 50% 58%, 100% 0, 100% 100%, 0 100%);
}
.mail-card-copy { position: relative; padding: 3px 10px 0; }
.mail-card-copy .label { display: inline-block; color: #64d7c8; font-size: 10px; font-weight: 800; letter-spacing: .15em; margin-bottom: 10px; }
.mail-card-copy strong { display: block; font-size: 30px; letter-spacing: -.045em; }
.mail-card-copy p { color: #8fa1b8; line-height: 1.6; font-size: 14px; max-width: 340px; }
.mail-card-footer { position: relative; display: flex; justify-content: space-between; align-items: center; margin-top: 24px; padding: 16px 10px 2px; border-top: 1px solid rgba(255,255,255,.07); }
.online-pill { display: inline-flex; align-items: center; gap: 8px; color: #b8c7d6; font-size: 12px; }
.online-pill i { width: 8px; height: 8px; border-radius: 50%; background: #5eead4; box-shadow: 0 0 14px rgba(94,234,212,.5); }
.arrow-mark { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; border: 1px solid rgba(255,255,255,.11); color: #b7c6d7; }

.info-strip {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 26px;
  align-items: center;
  padding: 26px 30px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,255,255,.025);
  box-shadow: inset 0 1px rgba(255,255,255,.03);
}
.info-card { display: flex; gap: 16px; align-items: flex-start; }
.step {
  flex: 0 0 auto;
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  color: #8ce7d8; background: rgba(94,234,212,.07); border: 1px solid rgba(94,234,212,.1);
  font-size: 11px; font-weight: 800;
}
.info-card h2 { margin: 1px 0 5px; font-size: 15px; letter-spacing: -.02em; }
.info-card p { margin: 0; color: #8091a7; font-size: 12.5px; line-height: 1.55; }
.divider { width: 1px; height: 52px; background: var(--line); }

.support { padding: 74px 0 68px; }
.support-inner {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 40px 44px;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 26px;
  background:
    radial-gradient(circle at 84% 20%, rgba(94,234,212,.09), transparent 24%),
    linear-gradient(135deg, rgba(255,255,255,.045), rgba(255,255,255,.018));
}
.section-kicker { display: block; color: #67dccb; font-size: 10px; font-weight: 800; letter-spacing: .16em; margin-bottom: 10px; }
.support h2 { margin: 0 0 8px; font-size: clamp(24px, 3vw, 34px); letter-spacing: -.04em; }
.support p { margin: 0; color: #8fa1b7; line-height: 1.6; }

.footer {
  min-height: 96px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  color: #6f8299;
  font-size: 12px;
}
.footer-brand { display: inline-flex; gap: 9px; align-items: center; color: #b8c6d6; font-weight: 700; }
.footer-dot { width: 8px; height: 8px; border-radius: 50%; background: linear-gradient(135deg, var(--cyan), var(--blue)); }
.footer p { text-align: center; }
.footer > span:last-child { text-align: right; }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; gap: 30px; padding-top: 58px; }
  .hero-copy { text-align: center; }
  .hero-text { margin-inline: auto; }
  .hero-actions, .trust-row { justify-content: center; }
  .hero-visual { min-height: 500px; }
  .mail-card { transform: none; }
  .info-strip { grid-template-columns: 1fr; gap: 18px; }
  .divider { width: 100%; height: 1px; }
  .info-card { align-items: center; }
}

@media (max-width: 680px) {
  .container { width: min(100% - 30px, 1180px); }
  .site-header { height: 82px; }
  .nav-link { display: none; }
  .brand-copy { font-size: 18px; }
  .button-small { min-height: 40px; padding-inline: 14px; }
  .hero { padding-top: 46px; min-height: auto; }
  .hero h1 { font-size: clamp(46px, 15vw, 64px); }
  .hero-text { font-size: 16px; }
  .hero-actions { flex-direction: column; gap: 17px; }
  .button-primary { width: 100%; max-width: 340px; }
  .trust-row { flex-direction: column; align-items: center; gap: 15px; }
  .trust-item { width: 230px; text-align: left; }
  .hero-visual { min-height: 430px; }
  .mail-card { min-height: 430px; border-radius: 24px; padding: 17px; }
  .mail-graphic { height: 200px; }
  .envelope { transform: scale(.86); }
  .mail-card-copy strong { font-size: 26px; }
  .info-strip { padding: 22px; }
  .support { padding-top: 54px; }
  .support-inner { flex-direction: column; align-items: flex-start; padding: 30px 26px; }
  .button-secondary { width: 100%; }
  .footer { grid-template-columns: 1fr; gap: 8px; text-align: center; padding: 28px 0; }
  .footer p, .footer > span:last-child { text-align: center; margin: 0; }
  .footer-brand { justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}