:root {
  color-scheme: dark;
  --bg: #080a0f;
  --bg-soft: #10141d;
  --panel: rgba(15, 20, 30, 0.84);
  --panel-strong: #151b26;
  --line: rgba(255, 255, 255, 0.13);
  --text: #f7f2e9;
  --muted: #b4bbc8;
  --subtle: #778091;
  --accent: #34d3b4;
  --accent-2: #ffcc66;
  --accent-3: #ed5c66;
  --ink: #101318;
  --radius: 8px;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(8, 10, 15, 0.3), var(--bg) 620px),
    var(--bg);
  color: var(--text);
}

body,
button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  border: 0;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid transparent;
  transition: 180ms ease;
}

.site-header[data-elevated="true"] {
  background: rgba(8, 10, 15, 0.84);
  border-color: var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 210px;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #71a8ff 54%, var(--accent-2));
  color: #06100f;
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.2;
}

.nav {
  display: flex;
  justify-content: center;
  gap: clamp(10px, 2vw, 28px);
  color: var(--muted);
  font-size: 14px;
}

.nav a {
  padding: 8px 0;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--text);
}

.header-cta,
.btn {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  padding: 0 18px;
  cursor: pointer;
  font-weight: 700;
}

.header-cta {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
}

.btn-primary {
  background: var(--accent);
  color: #06100f;
}

.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
}

.hero {
  position: relative;
  min-height: 92svh;
  overflow: hidden;
  padding: 142px clamp(18px, 4vw, 56px) 52px;
}

.hero-photo,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(8, 10, 15, 0.96) 0%, rgba(8, 10, 15, 0.74) 48%, rgba(8, 10, 15, 0.54) 100%),
    linear-gradient(180deg, rgba(8, 10, 15, 0.2), #080a0f 96%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 520px);
  align-items: end;
  gap: clamp(28px, 5vw, 72px);
  max-width: 1220px;
  min-height: calc(92svh - 190px);
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(46px, 7vw, 92px);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.06;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.22;
  letter-spacing: 0;
}

p {
  color: var(--muted);
  line-height: 1.72;
}

.hero-lede {
  max-width: 760px;
  font-size: clamp(17px, 1.6vw, 21px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-console {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(8, 10, 15, 0.72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px);
  overflow: hidden;
}

.console-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.console-head strong {
  color: var(--accent);
}

#waveCanvas {
  display: block;
  width: 100%;
  height: auto;
  background: linear-gradient(180deg, rgba(52, 211, 180, 0.12), rgba(255, 255, 255, 0.02));
}

.console-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}

.console-metrics div {
  padding: 16px;
  border-right: 1px solid var(--line);
}

.console-metrics div:last-child {
  border-right: 0;
}

.console-metrics span,
.stat span,
.card-kicker,
.layer span,
.timeline span {
  display: block;
  color: var(--subtle);
  font-size: 12px;
}

.console-metrics strong {
  display: block;
  margin-top: 5px;
  font-size: 20px;
}

.section {
  max-width: 1220px;
  margin: 0 auto;
  padding: 82px clamp(18px, 4vw, 56px);
}

.stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  max-width: none;
  padding-top: 0;
  padding-bottom: 0;
  background: var(--line);
}

.stat {
  min-height: 132px;
  padding: 28px clamp(18px, 4vw, 56px);
  background: #0d1119;
}

.stat strong {
  display: block;
  margin-bottom: 8px;
  font-size: 34px;
}

.section-head {
  max-width: 760px;
  margin: 0 auto 34px;
  text-align: center;
}

.align-left {
  margin-left: 0;
  text-align: left;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.feature-card,
.tech-grid article,
.price-card,
.timeline article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.feature-card {
  min-height: 238px;
  padding: 22px;
}

.feature-card.featured {
  grid-column: span 2;
  background:
    linear-gradient(135deg, rgba(52, 211, 180, 0.16), rgba(113, 168, 255, 0.08)),
    var(--panel-strong);
}

.feature-card ul,
.price-card ul {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.demo-panel,
.compliance,
.signup {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(360px, 1fr);
  gap: 34px;
  align-items: center;
}

.scanner,
.signup-form {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-strong);
  padding: 24px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

.scanner-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-top: 10px;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  padding: 11px 13px;
  outline: none;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
}

.risk-meter {
  height: 12px;
  margin: 22px 0 18px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
}

.risk-meter span {
  display: block;
  width: 62%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
  transition: width 420ms ease;
}

.scan-result {
  border-left: 3px solid var(--accent-2);
  padding-left: 14px;
}

.scan-result p {
  margin: 6px 0 0;
}

.split {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(420px, 1fr);
  gap: 44px;
}

.architecture-map {
  display: grid;
  gap: 12px;
}

.layer {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
  padding: 20px;
}

.layer strong {
  display: block;
  margin: 6px 0 8px;
  font-size: 18px;
}

.layer p {
  margin-bottom: 0;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.tech-grid article {
  padding: 26px;
}

.tech-grid ol {
  margin: 16px 0 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.86;
}

.chip-row,
.payment-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.chip-row span,
.payment-strip span {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  padding: 8px 12px;
  font-size: 13px;
}

.api-section {
  max-width: none;
  background: #0d1119;
}

.api-section > * {
  max-width: 1110px;
  margin-left: auto;
  margin-right: auto;
}

.api-layout {
  display: grid;
  grid-template-columns: minmax(260px, 360px) minmax(0, 1fr);
  gap: 16px;
}

.endpoint-list {
  display: grid;
  gap: 10px;
}

.endpoint {
  min-height: 54px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  padding: 0 16px;
  text-align: left;
  cursor: pointer;
}

.endpoint span {
  color: var(--accent);
  font-weight: 800;
}

.endpoint.is-active {
  border-color: rgba(52, 211, 180, 0.72);
  background: rgba(52, 211, 180, 0.12);
  color: var(--text);
}

.code-window {
  min-height: 246px;
  margin: 0;
  overflow: auto;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background: #06080d;
  color: #d8f6ed;
  padding: 22px;
  line-height: 1.68;
}

.flow {
  display: grid;
  gap: 12px;
}

.flow div {
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: center;
  gap: 14px;
  min-height: 70px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 14px;
}

.flow strong {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: rgba(52, 211, 180, 0.14);
  color: var(--accent);
}

.billing-toggle {
  display: flex;
  width: fit-content;
  margin: -8px auto 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 4px;
  background: rgba(255, 255, 255, 0.05);
}

.billing-toggle button {
  min-height: 36px;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  padding: 0 14px;
  cursor: pointer;
}

.billing-toggle button.is-active {
  background: var(--text);
  color: var(--ink);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.price-card {
  padding: 26px;
}

.price-card.highlighted {
  border-color: rgba(52, 211, 180, 0.72);
  background: linear-gradient(180deg, rgba(52, 211, 180, 0.13), rgba(255, 255, 255, 0.04));
}

.price-card strong {
  display: block;
  margin: 18px 0;
  font-size: 30px;
}

.payment-strip {
  justify-content: center;
  margin-top: 24px;
}

.signup {
  align-items: start;
  border-top: 1px solid var(--line);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 14px;
}

.signup-form .btn {
  margin-top: 16px;
}

.form-note {
  min-height: 24px;
  margin: 14px 0 0;
  color: var(--accent);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.timeline article {
  padding: 22px;
}

.timeline p {
  margin-bottom: 0;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 42px clamp(18px, 4vw, 56px);
  border-top: 1px solid var(--line);
  background: #06080d;
}

.footer p {
  max-width: 620px;
  margin: 8px 0 0;
}

.footer a {
  color: var(--accent);
  font-weight: 700;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav {
    display: none;
  }

  .hero-grid,
  .split,
  .demo-panel,
  .compliance,
  .signup,
  .api-layout {
    grid-template-columns: 1fr;
  }

  .product-grid,
  .stats-band,
  .pricing-grid,
  .timeline {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-card.featured {
    grid-column: span 2;
  }

  .tech-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 12px 16px;
  }

  .brand {
    min-width: 0;
  }

  .brand small,
  .header-cta {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 108px 16px 36px;
  }

  .hero-grid {
    min-height: auto;
  }

  h1 {
    font-size: 44px;
  }

  .hero-lede {
    font-size: 16px;
  }

  .section {
    padding: 58px 16px;
  }

  .product-grid,
  .stats-band,
  .pricing-grid,
  .timeline,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .feature-card.featured {
    grid-column: auto;
  }

  .scanner-row,
  .console-metrics {
    grid-template-columns: 1fr;
  }

  .console-metrics div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .console-metrics div:last-child {
    border-bottom: 0;
  }

  .footer {
    display: grid;
  }
}