:root {
  color-scheme: dark;
  --bg: #070a0f;
  --bg-soft: #0c111a;
  --panel: #111923;
  --panel-strong: #162131;
  --border: rgba(148, 163, 184, 0.18);
  --text: #eef5ff;
  --muted: #9aa8ba;
  --subtle: #64748b;
  --accent: #4fd1c5;
  --accent-strong: #69e8dc;
  --gold: #d9b76e;
  --shadow: 0 24px 90px rgba(0, 0, 0, 0.42);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(79, 209, 197, 0.18), transparent 34rem),
    radial-gradient(circle at 85% 15%, rgba(217, 183, 110, 0.11), transparent 28rem),
    linear-gradient(180deg, #070a0f 0%, #0a0f16 48%, #070a0f 100%);
  color: var(--text);
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(7, 10, 15, 0.84);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 760;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(79, 209, 197, 0.46);
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(79, 209, 197, 0.22), rgba(217, 183, 110, 0.1));
  color: var(--accent-strong);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 16px;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-nav a {
  text-decoration: none;
}

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

.section-shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(290px, 0.84fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  padding: clamp(76px, 12vw, 140px) 0 72px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 16px;
  font-size: clamp(4rem, 11vw, 8rem);
  line-height: 0.9;
  letter-spacing: 0;
}

h2 {
  max-width: 780px;
  margin-bottom: 20px;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.04;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.subheadline {
  margin-bottom: 18px;
  color: #dce8f7;
  font-size: clamp(1.35rem, 2vw, 1.85rem);
  line-height: 1.3;
}

.hero-body {
  max-width: 690px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 32px 0 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-weight: 760;
  text-decoration: none;
}

.button.primary {
  border-color: rgba(79, 209, 197, 0.55);
  background: linear-gradient(135deg, var(--accent), #7cf0dc);
  color: #03110f;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.contact-note {
  color: var(--subtle);
  font-size: 0.94rem;
}

.signal-panel {
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background:
    linear-gradient(145deg, rgba(22, 33, 49, 0.92), rgba(12, 17, 26, 0.92)),
    var(--panel);
  box-shadow: var(--shadow);
}

.signal-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--accent-strong);
  font-size: 0.88rem;
  font-weight: 800;
  text-transform: uppercase;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 7px rgba(79, 209, 197, 0.12);
}

.signal-grid {
  display: grid;
  gap: 14px;
}

.signal-grid div {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.035);
}

.signal-label {
  display: block;
  margin-bottom: 8px;
  color: var(--subtle);
  font-size: 0.82rem;
}

.signal-grid strong {
  color: var(--text);
  font-size: 1.02rem;
}

.content-section {
  padding: 72px 0;
  border-top: 1px solid rgba(148, 163, 184, 0.11);
}

.section-heading {
  margin-bottom: 30px;
}

.section-heading p:last-child,
.info-card p,
.feature-list p,
.integration-panel p,
.step-list p,
.contact-section p {
  color: var(--muted);
  line-height: 1.7;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.info-card,
.integration-panel,
.contact-section {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(17, 25, 35, 0.72);
}

.info-card {
  padding: 24px;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(24px, 5vw, 52px);
  align-items: start;
}

.step-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.step-list li {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(17, 25, 35, 0.58);
}

.step-list span {
  color: var(--gold);
  font-weight: 820;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  padding: 28px 0;
}

.feature-list div {
  border-left: 2px solid rgba(79, 209, 197, 0.46);
  padding-left: 18px;
}

.integration-panel,
.contact-section {
  padding: 28px;
}

.integration-panel ul {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding-left: 20px;
  color: var(--text);
}

.contact-section {
  margin-bottom: 72px;
}

.contact-section a {
  color: var(--accent-strong);
  font-weight: 760;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--border);
  color: var(--subtle);
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .hero,
  .split-section,
  .card-grid,
  .feature-list {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 56px;
  }

  h1 {
    font-size: clamp(3.5rem, 20vw, 5.4rem);
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .section-shell {
    width: min(100% - 28px, 1120px);
  }

  .site-nav {
    gap: 10px 14px;
    font-size: 0.86rem;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .step-list li {
    grid-template-columns: 1fr;
  }
}