:root {
  --color-bg: #fafbfc;
  --color-bg-alt: #f0f2f5;
  --color-bg-card: #ffffff;
  --color-text: #1d2433;
  --color-text-muted: #6b7a90;
  --color-text-light: #8d99ae;
  --color-accent: #2563eb;
  --color-accent-soft: #dbeafe;
  --color-border: #e2e8f0;
  --color-code-bg: #f1f5f9;
  --color-dark: #0f172a;
  --color-dark-soft: #1e293b;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;
  --max-w: 1120px;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

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

img {
  max-width: 100%;
  display: block;
}

/* ── Nav ─────────────────────────────────────── */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 251, 252, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.nav.scrolled {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo svg {
  width: 28px;
  height: 28px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1.125rem;
  background: var(--color-text);
  color: #fff !important;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
}

.nav-cta:hover {
  background: var(--color-dark);
  color: #fff !important;
  transform: translateY(-1px);
}

.nav-cta svg {
  width: 16px;
  height: 16px;
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-text);
}

.nav-mobile-toggle svg {
  width: 24px;
  height: 24px;
}

/* ── Hero ────────────────────────────────────── */

.hero {
  padding: 10rem 2rem 6rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 2rem;
  letter-spacing: 0.01em;
}

.hero h1 {
  font-size: clamp(2.75rem, 6vw, 4.25rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.035em;
  color: var(--color-text);
  max-width: 720px;
  margin: 0 auto 1.5rem;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--color-accent) 0%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.1875rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8125rem 1.75rem;
  border-radius: 9999px;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  line-height: 1;
}

.btn-primary {
  background: var(--color-text);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.15);
}

.btn-secondary {
  background: var(--color-bg-card);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-text-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.btn svg {
  width: 18px;
  height: 18px;
}

.hero-terminal {
  max-width: 600px;
  margin: 4rem auto 0;
  background: var(--color-dark);
  border-radius: var(--radius);
  text-align: left;
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.18), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
}

.hero-terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.875rem 1.25rem;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius) var(--radius) 0 0;
}

.hero-terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.hero-terminal-dot:nth-child(1) { background: #ef4444; }
.hero-terminal-dot:nth-child(2) { background: #eab308; }
.hero-terminal-dot:nth-child(3) { background: #22c55e; }

.hero-terminal-body {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.9;
  color: #cbd5e1;
}

.hero-terminal-body .prompt {
  color: #22c55e;
}

.hero-terminal-body .flag {
  color: #fbbf24;
}

.hero-terminal-body .comment {
  color: #475569;
}

/* ── Section ─────────────────────────────────── */

.section {
  padding: 6rem 2rem;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 4rem;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-size: clamp(1.875rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
}

/* ── Features Grid ───────────────────────────── */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--color-text-light);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.06);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--color-accent);
}

.feature-icon svg {
  width: 22px;
  height: 22px;
}

.feature-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ── Architecture ────────────────────────────── */

.arch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.arch-visual {
  background: var(--color-dark);
  border-radius: var(--radius);
  padding: 3rem 2.5rem;
  color: #cbd5e1;
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.14);
}

.arch-node {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  margin-bottom: 0.625rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: background var(--transition);
}

.arch-node:hover {
  background: rgba(255, 255, 255, 0.1);
}

.arch-node-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: 700;
}

.arch-node-icon.blue { background: rgba(37, 99, 235, 0.3); color: #93c5fd; }
.arch-node-icon.green { background: rgba(34, 197, 94, 0.3); color: #86efac; }
.arch-node-icon.amber { background: rgba(245, 158, 11, 0.3); color: #fcd34d; }
.arch-node-icon.purple { background: rgba(139, 92, 246, 0.3); color: #c4b5fd; }

.arch-connector {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, 0.12);
  margin: 0 auto;
}

.arch-label {
  text-align: center;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #64748b;
  margin: 1.25rem 0 0.75rem;
  font-weight: 600;
}

.arch-targets {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.625rem;
}

.arch-content h3 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.arch-content p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.arch-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.arch-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.arch-list li svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ── Quick Start ─────────────────────────────── */

.steps {
  display: grid;
  gap: 1.5rem;
  max-width: 720px;
  margin: 0 auto;
}

.step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 1.25rem;
  align-items: start;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 1.125rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-content h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.step-content p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.code-block {
  background: var(--color-dark);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: #e2e8f0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  line-height: 1.8;
}

.code-block .prompt {
  color: #22c55e;
}

.code-block .comment {
  color: #475569;
}

/* ── CLI ─────────────────────────────────────── */

.cli-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.cli-group {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.cli-group h3 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cli-group h3 svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
}

.cli-table {
  width: 100%;
  border-collapse: collapse;
}

.cli-table td {
  padding: 0.4375rem 0;
  font-size: 0.8125rem;
  vertical-align: top;
}

.cli-table td:first-child {
  font-family: var(--font-mono);
  color: var(--color-accent);
  white-space: nowrap;
  padding-right: 1rem;
  font-weight: 500;
}

.cli-table td:last-child {
  color: var(--color-text-muted);
}

/* ── API ─────────────────────────────────────── */

.api-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.api-example {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.api-example-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  min-width: 0;
  overflow: hidden;
}

.api-method {
  background: var(--color-accent);
  color: #fff;
  padding: 0.1875rem 0.625rem;
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.api-path {
  color: var(--color-text);
  font-weight: 500;
  overflow-wrap: break-word;
  word-break: break-all;
  min-width: 0;
}

.api-response {
  margin-top: 0.25rem;
}

.api-response-header {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.api-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.api-detail-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.api-detail-card:hover {
  border-color: var(--color-text-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
}

.api-detail-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-accent);
}

.api-detail-icon svg {
  width: 20px;
  height: 20px;
}

.api-detail-card h3 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  letter-spacing: -0.01em;
}

.api-detail-card p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.api-detail-card code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--color-code-bg);
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
  color: var(--color-accent);
}

/* ── CTA ─────────────────────────────────────── */

.cta {
  text-align: center;
  padding: 6rem 2rem;
}

.cta-box {
  max-width: 640px;
  margin: 0 auto;
  background: var(--color-dark);
  border-radius: var(--radius);
  padding: 4rem 3rem;
  color: #fff;
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.2);
}

.cta-box h2 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.cta-box p {
  color: #94a3b8;
  margin-bottom: 2rem;
  font-size: 1rem;
  line-height: 1.7;
}

.btn-white {
  background: #fff;
  color: var(--color-dark);
}

.btn-white:hover {
  color: var(--color-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.15);
}

/* ── Footer ──────────────────────────────────── */

.footer {
  border-top: 1px solid var(--color-border);
  padding: 3rem 2rem;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-left {
  font-size: 0.8125rem;
  color: var(--color-text-light);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

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

/* ── Animations ──────────────────────────────── */

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ──────────────────────────────── */

@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: 1fr 1fr;
  }

  .arch-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

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

@media (max-width: 640px) {

  /* ── Nav mobile ── */
  .nav-inner {
    padding: 0 1.25rem;
    height: 56px;
  }

  .nav-logo {
    font-size: 1rem;
  }

  .nav-logo svg {
    width: 24px;
    height: 24px;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.75rem;
    z-index: 99;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 1.125rem;
  }

  .nav-mobile-toggle {
    display: block;
  }

  /* ── Hero mobile ── */
  .hero {
    padding: 7rem 1.25rem 3rem;
  }

  .hero-badge {
    font-size: 0.75rem;
    padding: 0.3125rem 0.875rem;
    margin-bottom: 1.5rem;
  }

  .hero h1 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
  }

  .hero-sub {
    font-size: 1rem;
    margin-bottom: 2rem;
    padding: 0 0.25rem;
  }

  .hero-actions {
    flex-direction: column;
    gap: 0.75rem;
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    width: 100%;
    justify-content: center;
    max-width: 280px;
  }

  .hero-terminal {
    margin: 2.5rem -0.25rem 0;
    border-radius: var(--radius-sm);
  }

  .hero-terminal-bar {
    padding: 0.625rem 1rem;
  }

  .hero-terminal-dot {
    width: 8px;
    height: 8px;
  }

  .hero-terminal-body {
    padding: 1rem;
    font-size: 0.6875rem;
    line-height: 1.8;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* ── Sections mobile ── */
  .section {
    padding: 3.5rem 1.25rem;
  }

  .section-header {
    margin-bottom: 2.5rem;
  }

  .section-header h2 {
    font-size: 1.625rem;
  }

  .section-header p {
    font-size: 0.9375rem;
  }

  /* ── Features mobile ── */
  .features-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .feature-card {
    padding: 1.5rem;
  }

  .feature-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 1rem;
  }

  .feature-icon svg {
    width: 20px;
    height: 20px;
  }

  .feature-card h3 {
    font-size: 1rem;
  }

  .feature-card p {
    font-size: 0.875rem;
  }

  /* ── Architecture mobile ── */
  .arch-visual {
    padding: 1.5rem 1.25rem;
  }

  .arch-node {
    font-size: 0.75rem;
    padding: 0.625rem 0.75rem;
    gap: 0.5rem;
  }

  .arch-node-icon {
    width: 28px;
    height: 28px;
    font-size: 0.625rem;
  }

  .arch-targets {
    grid-template-columns: 1fr;
  }

  .arch-content h3 {
    font-size: 1.25rem;
  }

  .arch-content p {
    font-size: 0.875rem;
  }

  .arch-list li {
    font-size: 0.875rem;
  }

  .arch-list li svg {
    width: 16px;
    height: 16px;
  }

  /* ── Quick Start mobile ── */
  .steps {
    gap: 1.25rem;
  }

  .step {
    grid-template-columns: 40px 1fr;
    gap: 1rem;
  }

  .step-number {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .step-content h3 {
    font-size: 1rem;
  }

  .step-content p {
    font-size: 0.875rem;
  }

  /* ── Code blocks mobile ── */
  .code-block {
    padding: 0.875rem 1rem;
    font-size: 0.6875rem;
    line-height: 1.75;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }

  /* ── CLI mobile ── */
  .cli-group {
    padding: 1.25rem;
  }

  .cli-group h3 {
    font-size: 0.875rem;
  }

  .cli-table td {
    font-size: 0.75rem;
    display: block;
    padding: 0;
  }

  .cli-table td:first-child {
    padding-right: 0;
    padding-top: 0.5rem;
    white-space: normal;
  }

  .cli-table td:last-child {
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
  }

  .cli-table tr:last-child td:last-child {
    border-bottom: none;
  }

  /* ── API mobile ── */
  .api-example-header {
    padding: 0.75rem 1rem;
    font-size: 0.75rem;
    gap: 0.5rem;
  }

  .api-method {
    font-size: 0.625rem;
    padding: 0.125rem 0.5rem;
  }

  .api-response-header {
    font-size: 0.6875rem;
  }

  .api-detail-card {
    padding: 1rem 1.25rem;
    gap: 0.875rem;
  }

  .api-detail-icon {
    width: 36px;
    height: 36px;
  }

  .api-detail-icon svg {
    width: 18px;
    height: 18px;
  }

  .api-detail-card h3 {
    font-size: 0.875rem;
  }

  .api-detail-card p {
    font-size: 0.75rem;
  }

  /* ── CTA mobile ── */
  .cta {
    padding: 3.5rem 1.25rem;
  }

  .cta-box {
    padding: 2.5rem 1.5rem;
  }

  .cta-box h2 {
    font-size: 1.5rem;
  }

  .cta-box p {
    font-size: 0.875rem;
  }

  .cta-box .btn {
    max-width: 220px;
  }

  /* ── Footer mobile ── */
  .footer {
    padding: 2rem 1.25rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .footer-links {
    gap: 1.25rem;
  }
}

/* ── Very small screens ── */
@media (max-width: 380px) {
  .hero h1 {
    font-size: 1.875rem;
  }

  .hero-sub {
    font-size: 0.9375rem;
  }

  .hero-terminal-body {
    font-size: 0.625rem;
  }

  .code-block {
    font-size: 0.625rem;
    padding: 0.75rem;
  }

  .section-header h2 {
    font-size: 1.375rem;
  }

  .arch-visual {
    padding: 1.25rem 1rem;
  }

  .arch-node {
    font-size: 0.6875rem;
    padding: 0.5rem 0.625rem;
  }
}