:root {
  --bg: #fff;
  --bg-2: #f4f5f7;
  --ink: #0a0a0b;
  --ink-2: #2e3138;
  --mute: #6e7380;
  --line: #e6e8ec;
  --blue: #2f6bff;
  --blue-soft: rgba(47, 107, 255, 0.1);
  --shadow: 0 20px 50px rgba(10, 10, 11, 0.08);
  --radius: 18px;
  --sans: "DM Sans", system-ui, sans-serif;
  --display: "Syne", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }

.page { width: 100%; min-height: 100vh; }

/* ===== HEADER ===== */
.top {
  position: sticky;
  top: 0;
  z-index: 40;
  padding: 14px 20px;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}
.top.scrolled { border-bottom-color: var(--line); }

.top-inner {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 28px;
}

.logo {
  width: 38px;
  height: 38px;
  object-fit: contain;
  flex-shrink: 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
}
.nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--mute);
  transition: color .2s ease;
}
.nav a:hover,
.nav a.on { color: var(--ink); }

.top-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 16px;
  transition: transform .18s ease, background .18s ease, color .18s ease, box-shadow .18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-quiet { background: transparent; color: var(--ink-2); }
.btn-quiet:hover { background: var(--bg-2); }
.btn-dark {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 8px 20px rgba(10,10,11,.18);
}
.btn-dark:hover { background: #1b1c20; }
.btn-blue {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 10px 24px rgba(47,107,255,.28);
}
.btn-blue:hover { filter: brightness(1.05); }
.btn-line {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
}

/* ===== HERO ===== */
.hero {
  width: 100%;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 32px;
  align-items: center;
  padding: 56px 28px 48px;
  min-height: calc(100vh - 70px);
  background:
    radial-gradient(900px 480px at 85% 10%, rgba(47,107,255,.12), transparent 55%),
    radial-gradient(700px 420px at 0% 80%, rgba(47,107,255,.06), transparent 50%),
    #fff;
}

.hero-copy { max-width: 620px; animation: up .7s ease both; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 18px;
}
.kicker i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 4px var(--blue-soft);
}

.hero h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(40px, 6vw, 68px);
  line-height: .98;
  letter-spacing: -.04em;
  color: var(--ink);
  max-width: 11ch;
}

.hero p.lead {
  margin: 20px 0 0;
  font-size: 18px;
  color: var(--mute);
  max-width: 38ch;
  line-height: 1.55;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-meta {
  display: flex;
  gap: 22px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
.hero-meta div strong {
  display: block;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.02em;
}
.hero-meta div span {
  font-size: 13px;
  color: var(--mute);
}

/* Product card */
.hero-visual {
  position: relative;
  min-height: 480px;
  animation: up .8s .08s ease both;
}
.visual-card {
  position: absolute;
  inset: 0;
  border-radius: 28px;
  background: #0b0d12;
  color: #fff;
  padding: 22px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.visual-card::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto auto;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(47,107,255,.55), transparent 70%);
  filter: blur(10px);
}
.vc-top {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  font-size: 12px;
  color: rgba(255,255,255,.55);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.vc-logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
}
.vc-grid {
  position: relative;
  display: grid;
  gap: 10px;
}
.vc-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(8px);
}
.vc-item b { display: block; font-size: 15px; font-weight: 600; }
.vc-item small { color: rgba(255,255,255,.5); font-size: 12px; }
.tag {
  font-size: 11px;
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--blue-soft);
  color: #9cbcff;
}

/* ===== SECTIONS ===== */
.section {
  width: 100%;
  padding: 72px 28px;
}
.section.alt { background: var(--bg-2); }
.section-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 36px;
  align-items: end;
}
.eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--blue);
}
.section h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.05;
  letter-spacing: -.03em;
  max-width: 14ch;
}
.section-head p {
  margin: 0;
  color: var(--mute);
  font-size: 16px;
  max-width: 42ch;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}
.card .ico {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--blue-soft);
  color: var(--blue);
  display: grid;
  place-items: center;
  font-weight: 800;
  margin-bottom: 16px;
}
.card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  letter-spacing: -.02em;
}
.card p {
  margin: 0;
  color: var(--mute);
  font-size: 14px;
  line-height: 1.55;
}
.card .more {
  display: inline-block;
  margin-top: 14px;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  counter-reset: step;
}
.step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  position: relative;
}
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--display);
  font-size: 28px;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 14px;
  letter-spacing: -.03em;
}
.step h3 { margin: 0 0 8px; font-size: 18px; }
.step p { margin: 0; color: var(--mute); font-size: 14px; }

/* Split */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.panel {
  border-radius: 24px;
  padding: 32px;
  border: 1px solid var(--line);
  background: #fff;
}
.panel.dark {
  background: #0b0d12;
  color: #fff;
  border: 0;
}
.panel h3 {
  margin: 0 0 10px;
  font-family: var(--display);
  font-size: 28px;
  letter-spacing: -.03em;
}
.panel p { margin: 0; color: var(--mute); }
.panel.dark p { color: rgba(255,255,255,.62); }
.list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.list li {
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--bg-2);
  font-size: 14px;
  font-weight: 500;
}
.panel.dark .list li {
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.88);
}

/* CTA */
.cta {
  margin: 0 28px 72px;
  border-radius: 28px;
  padding: 48px 36px;
  background:
    radial-gradient(600px 240px at 90% 0%, rgba(47,107,255,.35), transparent 60%),
    #0b0d12;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.cta h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -.03em;
  max-width: 12ch;
}
.cta p {
  margin: 10px 0 0;
  color: rgba(255,255,255,.6);
  max-width: 36ch;
}
.cta-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* Footer */
.foot {
  width: 100%;
  padding: 28px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.foot nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.foot nav a { font-size: 13px; color: var(--mute); }
.foot nav a:hover { color: var(--ink); }
.foot .copy { margin-left: auto; font-size: 13px; color: var(--mute); }

/* Inner pages */
.page-hero {
  padding: 56px 28px 20px;
  background:
    radial-gradient(700px 300px at 100% 0%, rgba(47,107,255,.1), transparent 55%),
    #fff;
}
.page-hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(34px, 5vw, 52px);
  letter-spacing: -.035em;
  max-width: 14ch;
  line-height: 1.02;
}
.page-hero p {
  margin: 14px 0 0;
  color: var(--mute);
  font-size: 17px;
  max-width: 48ch;
}

/* Auth */
.auth {
  width: min(440px, calc(100% - 40px));
  margin: 48px auto 72px;
}
.auth h1 {
  margin: 0 0 8px;
  font-family: var(--display);
  font-size: 34px;
  letter-spacing: -.03em;
}
.auth .sub { margin: 0 0 22px; color: var(--mute); }
.auth-box {
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 22px;
  background: #fff;
  box-shadow: var(--shadow);
}
.auth-box label {
  display: block;
  margin: 12px 0 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--mute);
}
.auth-box input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  outline: none;
}
.auth-box input:focus {
  border-color: rgba(47,107,255,.5);
  box-shadow: 0 0 0 4px var(--blue-soft);
}
.auth-box .btn { width: 100%; margin-top: 16px; }
.status { min-height: 18px; margin-top: 10px; font-size: 13px; color: var(--blue); }
.status.err { color: #c0392b; }
.auth-foot { margin-top: 14px; text-align: center; font-size: 14px; color: var(--mute); }
.auth-foot a { color: var(--blue); font-weight: 700; }

.pricing {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.price {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px;
  background: #fff;
}
.price.hot {
  border-color: transparent;
  background: #0b0d12;
  color: #fff;
  box-shadow: var(--shadow);
}
.price .eyebrow { color: var(--blue); }
.price.hot .eyebrow { color: #9cbcff; }
.price h3 {
  margin: 0;
  font-family: var(--display);
  font-size: 30px;
  letter-spacing: -.03em;
}
.price .amt {
  margin: 8px 0 18px;
  font-size: 16px;
  color: var(--mute);
}
.price.hot .amt { color: rgba(255,255,255,.55); }

@keyframes up {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 960px) {
  .nav { display: none; }
  .hero, .section-head, .cards, .steps, .split, .pricing, .cta {
    grid-template-columns: 1fr;
  }
  .cta { flex-direction: column; align-items: flex-start; margin: 0 16px 48px; }
  .hero { min-height: auto; padding: 36px 16px; }
  .hero-visual { min-height: 360px; }
  .section, .page-hero, .foot, .top { padding-left: 16px; padding-right: 16px; }
  .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .steps { grid-template-columns: 1fr; }
  .hero-meta { flex-direction: column; gap: 12px; }
}