:root {
  --bg: #08111f;
  --bg-soft: #0f172a;
  --panel: #111827;
  --panel-soft: #172033;
  --line: #2b3a55;
  --text: #e5eefc;
  --muted: #9fb0c8;
  --muted-strong: #c7d2e4;
  --accent: #38bdf8;
  --accent-strong: #60a5fa;
  --danger: #f97373;
  --success: #34d399;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  --radius-lg: 22px;
  --radius-md: 16px;
  --max-width: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.12), transparent 34rem),
    radial-gradient(circle at 80% 10%, rgba(96, 165, 250, 0.08), transparent 28rem),
    var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

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

p {
  color: var(--muted-strong);
  margin: 0 0 1rem;
}

code {
  color: #dbeafe;
  background: rgba(96, 165, 250, 0.12);
  border: 1px solid rgba(96, 165, 250, 0.22);
  border-radius: 8px;
  padding: 0.16rem 0.36rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem clamp(1rem, 4vw, 2.5rem);
  background: rgba(8, 17, 31, 0.88);
  border-bottom: 1px solid rgba(148, 163, 184, 0.16);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand-mark {
  display: inline-grid;
  width: 2.2rem;
  height: 2.2rem;
  place-items: center;
  border: 1px solid rgba(56, 189, 248, 0.55);
  border-radius: 10px;
  color: var(--accent);
  background: rgba(56, 189, 248, 0.08);
  font-size: 0.78rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.nav-links a {
  transition: color 140ms ease, border-color 140ms ease, background 140ms ease;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-cta {
  color: var(--text) !important;
  border: 1px solid rgba(56, 189, 248, 0.45);
  border-radius: 999px;
  padding: 0.55rem 0.85rem;
  background: rgba(56, 189, 248, 0.08);
}

.section {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding: 5.5rem 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 3rem;
  align-items: center;
  min-height: calc(100vh - 72px);
  padding-top: 4rem;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 0.9rem;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: -0.04em;
  line-height: 1.06;
}

h1 {
  max-width: 850px;
  font-size: clamp(3rem, 7vw, 5.8rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.35rem);
}

h3 {
  font-size: 1.15rem;
}

.hero-subheadline {
  max-width: 780px;
  margin-top: 1.4rem;
  font-size: clamp(1.05rem, 1.6vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: 999px;
  padding: 0.78rem 1.15rem;
  font-weight: 700;
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--accent);
  color: #06111f;
  border: 1px solid var(--accent);
}

.button-secondary {
  color: var(--text);
  border: 1px solid rgba(148, 163, 184, 0.35);
  background: rgba(15, 23, 42, 0.72);
}

.hero-panel,
.info-card,
.example-card,
.offer-section,
.architecture-card,
.contact-card {
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.96), rgba(15, 23, 42, 0.96));
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 1.25rem;
}

.panel-label {
  color: var(--muted);
  font-size: 0.82rem;
  margin-bottom: 1rem;
}

.system-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  padding: 0.95rem 0;
}

.system-row span {
  color: var(--muted);
}

.system-row strong {
  color: var(--text);
}

.panel-warning {
  margin-top: 1rem;
  border-left: 3px solid var(--danger);
  padding: 0.9rem 1rem;
  color: #fecaca;
  background: rgba(249, 115, 115, 0.08);
  border-radius: 12px;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 3rem;
  border-top: 1px solid rgba(148, 163, 184, 0.14);
}

.copy-block {
  font-size: 1.08rem;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 2rem;
}

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

.info-card,
.example-card {
  padding: 1.25rem;
}

.info-card p,
.example-card p {
  margin-top: 0.85rem;
  margin-bottom: 0;
}

.example-section {
  border-top: 1px solid rgba(148, 163, 184, 0.14);
}

.code-list {
  display: grid;
  gap: 0.55rem;
  padding: 0;
  margin: 1rem 0;
  list-style: none;
}

.offer-section {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 2rem;
  padding: 2rem;
}

.offer-content p {
  margin-top: 1rem;
}

.deliverables {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.deliverable {
  border: 1px solid rgba(56, 189, 248, 0.22);
  border-radius: 14px;
  padding: 0.9rem 1rem;
  color: var(--muted-strong);
  background: rgba(56, 189, 248, 0.06);
}

.education-section {
  border-top: 1px solid rgba(148, 163, 184, 0.14);
}

.quote-stack {
  display: grid;
  gap: 1rem;
}

blockquote {
  margin: 0;
  border-left: 3px solid var(--accent);
  border-radius: 14px;
  padding: 1rem 1.15rem;
  color: var(--text);
  background: rgba(56, 189, 248, 0.07);
  font-size: clamp(1.05rem, 1.6vw, 1.28rem);
}

.proof-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 2rem;
  align-items: center;
  border-top: 1px solid rgba(148, 163, 184, 0.14);
}

.proof-copy .button {
  margin-top: 1rem;
}

.architecture-card {
  padding: 1.25rem;
}

.architecture-step {
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 14px;
  padding: 0.9rem 1rem;
  color: var(--muted-strong);
  background: rgba(15, 23, 42, 0.72);
}

.architecture-arrow {
  color: var(--accent);
  text-align: center;
  padding: 0.35rem 0;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 2rem;
  align-items: center;
  border-top: 1px solid rgba(148, 163, 184, 0.14);
}

.contact-card {
  padding: 1.5rem;
}

.contact-name {
  font-size: 1.35rem;
  font-weight: 800;
}

.contact-detail {
  color: var(--muted);
  margin: 0.35rem 0 1.25rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  color: var(--muted);
  border-top: 1px solid rgba(148, 163, 184, 0.14);
  font-size: 0.9rem;
}

@media (max-width: 920px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  .hero,
  .split-section,
  .offer-section,
  .proof-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .card-grid,
  .example-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 560px) {
  .section {
    width: min(100% - 1.2rem, var(--max-width));
    padding: 4rem 0;
  }

  .site-header {
    padding: 0.85rem;
  }

  .nav-links {
    gap: 0.75rem;
    font-size: 0.86rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .offer-section {
    padding: 1.2rem;
  }

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