/* ════════════════════════════════════════════════════════════
   pg_durable — engineered-durability / blueprint aesthetic
   Display: Bricolage Grotesque · Body: Hanken Grotesk · Mono: JetBrains Mono
   ════════════════════════════════════════════════════════════ */

:root {
  color-scheme: dark;

  /* Surfaces — deep ink navy */
  --bg: #080b14;
  --bg-soft: #0e1320;
  --surface: #141a2b;
  --surface-2: #1b2336;
  --border: #232c44;
  --border-accent: #2f6da3;

  /* Text */
  --text: #eef2fb;
  --text-secondary: #aab4cc;
  --muted: #6c789a;

  /* Postgres elephant blue (primary) */
  --pg-blue: #3d86c6;
  --pg-blue-light: #6bb3ec;
  --pg-blue-deep: #2a6299;
  --pg-blue-glow: rgba(61, 134, 198, 0.32);

  /* Copper / amber (sharp secondary accent) */
  --copper: #e3a45c;
  --copper-light: #f3bd78;
  --copper-glow: rgba(227, 164, 92, 0.22);

  --accent: var(--pg-blue);
  --accent-hover: var(--pg-blue-light);
  --accent-light: rgba(61, 134, 198, 0.16);
  --accent-bg: rgba(61, 134, 198, 0.1);

  --code-bg: #0a0e1a;
  --code-border: #20304a;

  --radius: 16px;
  --radius-lg: 22px;
  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 18px 40px -24px rgba(0, 0, 0, 0.8);
  --shadow-glow: 0 0 0 1px var(--border-accent),
    0 22px 60px -28px var(--pg-blue-glow);

  --font-display: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  position: relative;
  font-family: var(--font-body);
  line-height: 1.65;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(1100px 520px at 12% -8%, var(--pg-blue-glow), transparent 60%),
    radial-gradient(820px 520px at 92% 0%, var(--copper-glow), transparent 55%),
    radial-gradient(900px 700px at 50% 120%, rgba(61, 134, 198, 0.1), transparent 60%);
  background-attachment: fixed;
  overflow-x: hidden;
}

/* Blueprint grid + grain atmosphere */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(61, 134, 198, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 134, 198, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 35%, transparent 80%);
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 35%, transparent 80%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

main,
.site-header {
  position: relative;
  z-index: 1;
}

.container {
  width: min(1140px, 92vw);
  margin: 0 auto;
}

::selection {
  background: var(--pg-blue);
  color: #fff;
}

/* ── Header ─────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid rgba(61, 134, 198, 0.16);
  background: rgba(8, 11, 20, 0.72);
  backdrop-filter: blur(16px) saturate(140%);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.95rem 0;
  gap: 1rem;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 1.25rem;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.brand-mark {
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  filter: drop-shadow(0 0 10px var(--pg-blue-glow));
  transition: transform 0.25s ease;
}

.brand:hover .brand-mark {
  transform: rotate(-8deg) scale(1.05);
}

.brand-word {
  color: var(--text);
}

.brand-word .brand-us {
  background: linear-gradient(135deg, var(--pg-blue-light), var(--copper));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.6rem;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.65rem;
  border: 1px solid rgba(61, 134, 198, 0.22);
  border-radius: 999px;
  padding: 0.68rem 0.95rem;
  color: var(--text);
  background: rgba(20, 26, 43, 0.78);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.nav-toggle-icon {
  display: inline-flex;
  flex-direction: column;
  gap: 0.24rem;
}

.nav-toggle-icon span {
  display: block;
  width: 1rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--pg-blue-light), var(--copper));
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  border-color: rgba(61, 134, 198, 0.38);
  background: rgba(29, 38, 61, 0.92);
}

.nav-links a {
  position: relative;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.92rem;
  transition: color 0.18s;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--pg-blue-light), var(--copper));
  transition: width 0.25s ease;
}

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

.nav-links a:hover::after {
  width: 100%;
}

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

.hero {
  padding: 5.5rem 0 3.5rem;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper-light);
  padding: 0.4rem 0.9rem;
  border: 1px solid rgba(227, 164, 92, 0.32);
  border-radius: 999px;
  background: rgba(227, 164, 92, 0.07);
  animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.hero h1 {
  margin: 1.4rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(3rem, 7.6vw, 5.6rem);
  line-height: 0.98;
  font-weight: 800;
  letter-spacing: -0.045em;
  background: linear-gradient(180deg, #ffffff 28%, #aebbd8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) 0.06s both;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--copper-light), var(--copper));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.subtitle {
  margin-top: 1.3rem;
  color: var(--text-secondary);
  max-width: 56ch;
  font-size: 1.16rem;
  line-height: 1.7;
  animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) 0.12s both;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.9rem;
  justify-content: center;
  align-items: center;
  animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) 0.18s both;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: none;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.96rem;
  color: #07101c;
  background: linear-gradient(135deg, var(--pg-blue-light), var(--pg-blue));
  box-shadow: 0 10px 30px -12px var(--pg-blue-glow);
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s;
}

.button:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
  box-shadow: 0 16px 38px -14px var(--pg-blue-glow);
}

.button-outline {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  padding: 0.76rem 1.35rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.96rem;
  color: var(--text);
  background: rgba(20, 26, 43, 0.6);
  transition: border-color 0.18s, color 0.18s, transform 0.18s;
}

.button-outline:hover {
  border-color: var(--pg-blue);
  transform: translateY(-2px);
}

.button-text {
  text-decoration: none;
  font-weight: 600;
  font-size: 0.96rem;
  color: var(--text-secondary);
  padding: 0.76rem 0.4rem;
  transition: color 0.18s;
}

.button-text:hover {
  color: var(--copper-light);
}

/* ── Live Execution Engine (animated hero) ──────────────── */

.engine {
  width: min(880px, 100%);
  margin: 3rem auto 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(20, 26, 43, 0.85), rgba(10, 14, 26, 0.9));
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(61, 134, 198, 0.06);
  overflow: hidden;
  text-align: left;
  animation: rise 0.8s cubic-bezier(0.2, 0.7, 0.2, 1) 0.26s both;
}

.engine-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 1rem 0.7rem 1.2rem;
  border-bottom: 1px solid var(--border);
  background: rgba(12, 16, 28, 0.6);
}

.engine-title {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.engine-rec {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--copper-light);
  box-shadow: 0 0 0 0 var(--copper-glow);
  animation: rec 1.8s ease-in-out infinite;
}

.engine-toggle {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--pg-blue-light);
  background: rgba(61, 134, 198, 0.12);
  border: 1px solid rgba(61, 134, 198, 0.3);
  border-radius: 999px;
  padding: 0.32rem 0.85rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.engine-toggle:hover {
  background: rgba(61, 134, 198, 0.22);
  color: var(--text);
}

.engine-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

@media (min-width: 760px) {
  .engine-body {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

/* Terminal */
.engine-terminal {
  border-bottom: 1px solid var(--border);
  min-width: 0;
}

@media (min-width: 760px) {
  .engine-terminal {
    border-bottom: none;
    border-right: 1px solid var(--border);
  }
}

.engine-terminal .terminal-bar {
  display: flex;
  gap: 7px;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
}

.engine-log {
  margin: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--pg-blue-light);
  padding: 1.1rem 1.3rem;
  min-height: 16.5rem;
  white-space: pre-wrap;
  overflow: hidden;
}

/* Graph */
.engine-graph {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 1.6rem 1rem;
}

.gnode {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 0.7rem;
  padding: 0.6rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease, color 0.4s ease, transform 0.4s ease;
}

.gbranch {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
}

.gbranch .gnode {
  padding: 0.55rem 0.7rem;
  font-size: 0.76rem;
}

.gstatus {
  font-size: 0.8rem;
}

/* Node states */
.gnode.is-pending {
  background: rgba(38, 45, 62, 0.5);
  border: 1px dashed #3c4660;
  color: var(--muted);
}

.gnode.is-running {
  background: linear-gradient(135deg, var(--pg-blue), var(--pg-blue-deep));
  border: 1px solid var(--pg-blue-light);
  color: #fff;
  box-shadow: 0 0 26px -6px var(--pg-blue-glow);
  transform: translateY(-1px) scale(1.02);
  animation: pulse 1.3s ease-in-out infinite;
}

.gnode.is-done {
  background: linear-gradient(135deg, #2f7a55, #245d41);
  border: 1px solid #3a8c62;
  color: #eafff3;
  box-shadow: 0 0 22px -10px rgba(58, 140, 98, 0.7);
}

.gnode.is-done .gstatus {
  color: #8fe3a6;
}

/* Connectors */
.gwire path {
  stroke: #34405c;
  stroke-width: 2;
  stroke-dasharray: 6 5;
  transition: stroke 0.4s ease;
}

.engine-graph:has(.is-running) .gwire path,
.engine-graph:has(.is-done) .gwire path {
  stroke: var(--border-accent);
  animation: flow 0.8s linear infinite;
}

.engine-caption {
  margin: 0;
  padding: 0.9rem 1.2rem 1.1rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
}

.engine-caption code {
  color: var(--copper-light);
  font-weight: 700;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 26px -6px var(--pg-blue-glow);
  }
  50% {
    box-shadow: 0 0 38px -2px var(--pg-blue-glow);
  }
}

@keyframes rec {
  0%, 100% {
    box-shadow: 0 0 0 0 var(--copper-glow);
    opacity: 1;
  }
  50% {
    box-shadow: 0 0 0 5px rgba(227, 164, 92, 0);
    opacity: 0.55;
  }
}

@keyframes flow {
  to {
    stroke-dashoffset: -22;
  }
}

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

.comparison {
  padding: 4rem 0;
}

.comparison h2 {
  text-align: center;
  margin-bottom: 2.2rem;
}

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

.comparison-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.comparison-without,
.comparison-with {
  flex: 1;
}

.comparison-col h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin: 0 0 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.comparison-col:first-child h3 {
  color: var(--copper-light);
}

.comparison-without {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  background: var(--bg-soft);
  position: relative;
  overflow: hidden;
}

.comparison-blur-code {
  filter: blur(3px);
  opacity: 0.32;
  pointer-events: none;
  transition: filter 0.45s, opacity 0.45s;
}

.comparison-blur-code pre {
  border: none;
  border-radius: 0;
  background: transparent;
  font-size: 0.78rem;
  padding: 1.5rem;
  max-height: 420px;
  overflow: hidden;
}

.hide-btn {
  display: none;
  margin: 1rem 1.5rem 0;
  border: 1px solid var(--border);
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.hide-btn:hover {
  border-color: var(--pg-blue);
  color: var(--text);
}

.comparison-without.revealed .hide-btn {
  display: inline-flex;
}

.comparison-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 2.2rem;
  z-index: 2;
  background: radial-gradient(120% 100% at 0% 0%, rgba(227, 164, 92, 0.08), transparent 60%);
  transition: opacity 0.4s, visibility 0.4s;
}

.comparison-overlay .big-text {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--copper-light);
  margin: 0 0 1rem;
}

.comparison-overlay ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.comparison-overlay li {
  padding: 0.35rem 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.reveal-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid rgba(227, 164, 92, 0.4);
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  background: rgba(227, 164, 92, 0.12);
  color: var(--copper-light);
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  transition: background 0.18s, transform 0.18s;
}

.reveal-btn:hover {
  background: rgba(227, 164, 92, 0.2);
  transform: translateY(-1px);
}

/* Revealed state */
.comparison-without.revealed .comparison-blur-code {
  filter: none;
  opacity: 1;
  pointer-events: auto;
}

.comparison-without.revealed .comparison-blur-code pre {
  max-height: none;
}

.comparison-without.revealed .comparison-overlay {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.comparison-with {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-glow);
}

.comparison-with pre {
  flex: 1;
  border: none;
  border-radius: 0;
  background: var(--code-bg);
  padding: 1.6rem;
  font-size: 0.88rem;
}

/* ── Section eyebrow (pill above headings) ───────────────── */

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper-light);
  padding: 0.4rem 0.9rem;
  border: 1px solid rgba(227, 164, 92, 0.32);
  border-radius: 999px;
  background: rgba(227, 164, 92, 0.07);
}

/* ── Callout ─────────────────────────────────────────────── */

.callout {
  padding: 3.2rem 0;
}

/* Feature callout — stronger glow + accent for marquee sections */
.callout-feature {
  margin-top: 1.4rem;
  padding: 2rem 2.2rem;
  text-align: left;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 0% 0%, var(--copper-glow), transparent 55%),
    linear-gradient(180deg, rgba(27, 35, 54, 0.92), rgba(14, 19, 32, 0.92));
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(227, 164, 92, 0.06);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.callout-feature::before {
  width: 5px;
  background: linear-gradient(180deg, var(--pg-blue-light), var(--copper));
}

.callout-feature:hover {
  transform: translateY(-3px);
  border-color: var(--copper);
}

.callout-feature p:first-child strong {
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 700;
}

.callout-box {
  position: relative;
  padding: 1.7rem 1.9rem;
  background: linear-gradient(180deg, rgba(27, 35, 54, 0.85), rgba(14, 19, 32, 0.85));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.callout-box::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--pg-blue-light), var(--copper));
}

.callout-box p {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.callout-box p + p {
  margin-top: 0.6rem;
}

.callout-box strong {
  color: var(--text);
}

.callout-links {
  margin-top: 1.1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
}

.callout-links a {
  color: var(--pg-blue-light);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  transition: color 0.18s;
}

.callout-links a:hover {
  color: var(--copper-light);
}

/* ── Install Block ───────────────────────────────────────── */

.install {
  padding: 3.2rem 0;
  text-align: center;
}

.terminal {
  max-width: 580px;
  margin: 0 auto;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-soft);
  box-shadow: var(--shadow-glow);
}

.terminal-bar {
  display: flex;
  gap: 7px;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #36405a;
}

.terminal-dot:nth-child(1) { background: #e3a45c; }
.terminal-dot:nth-child(2) { background: #5a6b8c; }
.terminal-dot:nth-child(3) { background: #3d86c6; }

.terminal pre {
  border: none;
  border-radius: 0;
  background: transparent;
  text-align: left;
  padding: 1.3rem 1.5rem;
  font-size: 1.08rem;
  color: var(--pg-blue-light);
}

.install-caption {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.install-caption a {
  color: var(--pg-blue-light);
  text-decoration: none;
  font-weight: 600;
}

.install-caption a:hover {
  color: var(--copper-light);
}

/* Open-source badge (formerly coming-soon) */
.coming-soon-badge {
  display: inline-block;
  margin-left: 0.55rem;
  padding: 0.18em 0.7em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--copper-light);
  background: rgba(227, 164, 92, 0.12);
  border: 1px solid rgba(227, 164, 92, 0.4);
  border-radius: 999px;
  vertical-align: middle;
}

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

section {
  padding: 3rem 0;
}

h2 {
  margin: 0 0 1.2rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

/* ── Feature Cards ───────────────────────────────────────── */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.3rem;
}

.card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(27, 35, 54, 0.55), rgba(14, 19, 32, 0.55));
  padding: 1.6rem;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(107, 179, 236, 0.5), transparent 45%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-4px);
  border-color: transparent;
  box-shadow: 0 24px 50px -28px var(--pg-blue-glow);
}

.card:hover::after {
  opacity: 1;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.16rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 1.62;
}

.card-link {
  display: inline-block;
  margin-top: 0.85rem;
  color: var(--pg-blue-light);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  transition: color 0.18s;
}

.card-link:hover {
  color: var(--copper-light);
}

.card-emoji {
  font-size: 1.5rem;
  margin-bottom: 0.7rem;
  display: inline-flex;
  width: 2.6rem;
  height: 2.6rem;
  align-items: center;
  justify-content: center;
  border-radius: 0.7rem;
  background: var(--accent-light);
  border: 1px solid var(--border-accent);
}

/* ── Use Case Cards ──────────────────────────────────────── */

.use-cases {
  padding: 3.5rem 0;
}

.section-lede {
  max-width: 60ch;
  margin: 0.4rem 0 1.6rem;
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.65;
}

.scenarios-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.8rem;
  padding: 1.5rem 1.8rem;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(227, 164, 92, 0.14), transparent 60%),
    linear-gradient(180deg, rgba(27, 35, 54, 0.7), rgba(14, 19, 32, 0.7));
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.scenarios-banner:hover {
  transform: translateY(-3px);
  border-color: var(--copper);
  box-shadow: 0 24px 50px -28px var(--copper-glow);
}

.scenarios-banner-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--copper-light);
  margin-bottom: 0.4rem;
}

.scenarios-banner h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.scenarios-banner p {
  margin: 0;
  max-width: 70ch;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.scenarios-banner .arrow {
  flex-shrink: 0;
  font-size: 1.6rem;
  color: var(--copper);
  transition: transform 0.2s ease;
}

.scenarios-banner:hover .arrow {
  transform: translateX(5px);
}

@media (max-width: 640px) {
  .scenarios-banner {
    flex-direction: column;
    align-items: flex-start;
  }
}

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.3rem;
}

.use-case-card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  background: linear-gradient(180deg, rgba(27, 35, 54, 0.55), rgba(14, 19, 32, 0.55));
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.use-case-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  box-shadow: 0 24px 50px -30px var(--copper-glow);
}

.use-case-card h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.use-case-card .use-case-desc {
  color: var(--text-secondary);
  font-size: 0.94rem;
  margin: 0 0 0.9rem;
  line-height: 1.6;
}

.use-case-card code {
  background: var(--surface);
  padding: 0.15rem 0.4rem;
  border-radius: 0.3rem;
  font-size: 0.82rem;
  color: var(--copper-light);
}

.use-case-operators {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.use-case-operators span {
  background: var(--accent-light);
  color: var(--pg-blue-light);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  border: 1px solid rgba(61, 134, 198, 0.25);
}

/* ── Code blocks ─────────────────────────────────────────── */

pre {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-soft);
  color: var(--text);
  padding: 1.3rem;
  overflow-x: auto;
}

code,
pre {
  font-family: var(--font-mono);
  font-size: 0.88rem;
}

pre {
  max-width: 100%;
}

img,
svg {
  max-width: 100%;
}

/* Larger, comfortable tap targets on touch devices */
@media (hover: none) and (pointer: coarse) {
  .nav-links a,
  .button-text {
    padding-block: 0.35rem;
  }
}

/* syntax highlighting */
.kw { color: #c9a6ff; font-weight: 600; }
.fn { color: var(--pg-blue-light); }
.str { color: #8fe3a6; }
.op { color: var(--copper-light); font-weight: 700; }
.cm { color: #5e6b88; font-style: italic; }
.var { color: #f3bd78; }

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

.cta-section {
  padding: 4.5rem 0;
  text-align: center;
}

.cta-section h2 {
  margin-bottom: 1.6rem;
}

.cta-card {
  max-width: 600px;
  margin: 0 auto;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: 1.8rem 2.1rem;
  background:
    linear-gradient(135deg, rgba(61, 134, 198, 0.14), rgba(227, 164, 92, 0.08)),
    var(--surface);
  text-align: left;
  text-decoration: none;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cta-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 26px 60px -28px var(--pg-blue-glow);
}

.cta-card h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.cta-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.96rem;
}

.cta-card .arrow {
  font-size: 1.6rem;
  color: var(--copper-light);
  transition: transform 0.2s ease;
}

.cta-card:hover .arrow {
  transform: translateX(5px);
}

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

footer {
  border-top: 1px solid var(--border);
  margin-top: 2.5rem;
  padding: 2rem 0 2.6rem;
}

footer strong {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

footer p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* ── Motion / reveal ─────────────────────────────────────── */

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

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

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3rem;
  }
}

@media (min-width: 920px) {
  .comparison-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: stretch;
  }
}

/* ── Azure HorizonDB (cloud upsell) ──────────────────────── */

.horizon {
  padding: 4rem 0;
}

.horizon-box {
  position: relative;
  border: 1px solid rgba(58, 160, 255, 0.28);
  border-radius: var(--radius-lg);
  padding: 2.6rem;
  background:
    radial-gradient(130% 150% at 0% 0%, rgba(58, 160, 255, 0.16), transparent 55%),
    linear-gradient(180deg, rgba(19, 27, 45, 0.92), rgba(10, 14, 26, 0.94));
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.horizon-box::before {
  content: "";
  position: absolute;
  top: -120px;
  left: -120px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(58, 160, 255, 0.22), transparent 70%);
  pointer-events: none;
}

.horizon-head {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.1rem;
}

.horizon-logo {
  flex-shrink: 0;
  border-radius: 10px;
}

.horizon-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #7fbcff;
}

.horizon-badge {
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  padding: 0.16rem 0.55rem;
  border-radius: 999px;
  background: rgba(58, 160, 255, 0.16);
  border: 1px solid rgba(58, 160, 255, 0.4);
  color: #aed6ff;
}

.horizon-head h2 {
  margin: 0.35rem 0 0;
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  line-height: 1.1;
}

.accent-azure {
  background: linear-gradient(135deg, #8cc4ff, #2c8bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.horizon-lede {
  position: relative;
  color: var(--text-secondary);
  max-width: 66ch;
  font-size: 1.08rem;
  line-height: 1.7;
}

.horizon-grid {
  position: relative;
  display: grid;
  gap: 1rem;
  margin: 1.9rem 0 1.7rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.horizon-feature {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(13, 18, 30, 0.5);
  padding: 1.15rem 1.25rem;
}

.hf-icon {
  font-size: 1.35rem;
}

.horizon-feature h4 {
  margin: 0.55rem 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.04rem;
  font-weight: 700;
}

.horizon-feature p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.horizon-cta {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

/* High-level AI pipeline callout */
.horizon-pipeline {
  position: relative;
  margin: 0 0 1.8rem;
  padding: 1.6rem;
  border: 1px solid rgba(58, 160, 255, 0.22);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(58, 160, 255, 0.07), rgba(10, 14, 26, 0.4));
}

.hp-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #7fbcff;
  margin-bottom: 0.5rem;
}

.horizon-pipeline h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.hp-sub {
  margin: 0 0 1.3rem;
  color: var(--text-secondary);
  font-size: 0.94rem;
  line-height: 1.6;
  max-width: 70ch;
}

.hp-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0.5rem;
}

.hp-stage {
  flex: 1 1 130px;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(13, 18, 30, 0.6);
}

.hp-stage strong {
  font-family: var(--font-display);
  font-size: 0.98rem;
}

.hp-stage span:last-child {
  color: var(--muted);
  font-size: 0.78rem;
}

.hp-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #2c8bff, #0c66d6);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
}

.hp-arrow {
  display: flex;
  align-items: center;
  color: #5f93cf;
  font-size: 1.1rem;
  font-weight: 700;
}

@media (max-width: 640px) {
  .hp-arrow {
    transform: rotate(90deg);
    justify-content: center;
    width: 100%;
  }
}

.button-azure {
  text-decoration: none;
  font-weight: 700;
  font-size: 0.98rem;
  color: #fff;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #2c8bff, #0c66d6);
  box-shadow: 0 10px 30px -10px rgba(44, 139, 255, 0.6);
  transition: transform 0.15s, box-shadow 0.15s;
}

.button-azure:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 38px -10px rgba(44, 139, 255, 0.75);
}

.button-azure-outline {
  text-decoration: none;
  font-weight: 700;
  font-size: 0.98rem;
  color: #aed6ff;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  border: 1px solid rgba(58, 160, 255, 0.45);
  background: rgba(58, 160, 255, 0.08);
  transition: transform 0.15s, border-color 0.15s, background 0.15s;
}

.button-azure-outline:hover {
  transform: translateY(-2px);
  border-color: rgba(58, 160, 255, 0.75);
  background: rgba(58, 160, 255, 0.16);
}

.horizon-note {
  color: var(--muted);
  font-size: 0.85rem;
}

/* ── Always-on cloud rail ──────────────────────────────────────────────── */
.cloud-rail {
  position: fixed;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  max-width: 66px; /* collapsed: only the logo strip shows */
  padding: 0.7rem 0.85rem;
  border: 1px solid rgba(58, 160, 255, 0.4);
  border-right: none;
  border-radius: 16px 0 0 16px;
  background: linear-gradient(135deg, rgba(20, 28, 46, 0.96), rgba(12, 18, 32, 0.96));
  box-shadow: -10px 0 34px -18px rgba(44, 139, 255, 0.7);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  text-decoration: none;
  color: #eaf2ff;
  overflow: hidden;
  white-space: nowrap;
  transition: max-width 0.34s cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 0.25s,
    border-color 0.25s;
}

.cloud-rail:hover,
.cloud-rail:focus-visible {
  max-width: 300px;
  border-color: rgba(58, 160, 255, 0.75);
  box-shadow: -16px 0 44px -16px rgba(44, 139, 255, 0.85);
  outline: none;
}

.cloud-rail-logo {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
}

.cloud-rail-text {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

.cloud-rail-kicker {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #7fbcff;
}

.cloud-rail-title {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.98rem;
}

.cloud-rail-badge {
  font-size: 0.56rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  background: rgba(58, 160, 255, 0.18);
  border: 1px solid rgba(58, 160, 255, 0.45);
  color: #aed6ff;
}

.cloud-rail-arrow {
  flex: 0 0 auto;
  color: #7fbcff;
  font-weight: 700;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.25s, transform 0.25s;
}

.cloud-rail:hover .cloud-rail-arrow,
.cloud-rail:focus-visible .cloud-rail-arrow {
  opacity: 1;
  transform: translateX(0);
}

@media (prefers-reduced-motion: no-preference) {
  .cloud-rail-logo {
    animation: cloudPulse 3.2s ease-in-out infinite;
  }
  @keyframes cloudPulse {
    0%,
    100% {
      filter: drop-shadow(0 0 0 rgba(44, 139, 255, 0));
    }
    50% {
      filter: drop-shadow(0 0 8px rgba(44, 139, 255, 0.7));
    }
  }
}

/* Hide on narrow screens so it never covers content */
@media (max-width: 820px) {
  .cloud-rail {
    display: none;
  }
}

/* ── Mobile / small-screen polish ────────────────────────── */
@media (max-width: 760px) {
  /* Roomier gutters but never edge-to-edge */
  .container {
    width: min(1140px, 90vw);
  }

  /* Header: brand + toggle, with a collapsible link panel below */
  .nav {
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    row-gap: 0.7rem;
    padding: 0.8rem 0;
  }
  .brand {
    flex: 1 1 auto;
    min-width: 0;
  }
  .nav-toggle {
    display: inline-flex;
    flex: 0 0 auto;
  }
  .nav-links {
    display: none;
    flex: 1 1 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0.45rem;
    margin-top: 0.15rem;
    padding: 0.75rem;
    background: linear-gradient(180deg, rgba(20, 26, 43, 0.92), rgba(20, 26, 43, 0.76));
    border: 1px solid rgba(61, 134, 198, 0.18);
    border-radius: 18px;
    box-shadow: var(--shadow-card);
  }
  .nav.is-nav-open .nav-links {
    display: flex;
  }
  .nav-links a {
    width: 100%;
    padding: 0.72rem 0.85rem;
    border-radius: 12px;
    background: rgba(8, 11, 20, 0.32);
    border: 1px solid rgba(61, 134, 198, 0.1);
    font-size: 0.92rem;
    white-space: normal;
  }
  .nav-links a::after {
    display: none;
  }
  .nav-links a:hover,
  .nav-links a:focus-visible {
    color: var(--text);
    background: rgba(61, 134, 198, 0.14);
    border-color: rgba(61, 134, 198, 0.22);
  }

  /* Tighter vertical rhythm */
  .hero {
    padding: 3.2rem 0 2.4rem;
  }
  .comparison,
  .horizon {
    padding: 2.8rem 0;
  }
  .callout {
    padding: 2.4rem 0;
  }
  .use-cases {
    padding: 2.6rem 0;
  }
  .cta-section {
    padding: 3rem 0;
  }

  .subtitle {
    font-size: 1.04rem;
  }

  /* Full-width, easy-to-tap CTAs */
  .cta-row {
    width: 100%;
  }
  .cta-row .button,
  .cta-row .button-outline {
    flex: 1 1 100%;
    justify-content: center;
    padding-block: 0.9rem;
  }
  .cta-row .button-text {
    flex: 1 1 100%;
    text-align: center;
  }

  /* Engine panel header can wrap */
  .engine-head {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  /* Comparison code: smaller, scrollable */
  .comparison-with pre,
  .comparison-blur-code pre {
    font-size: 0.74rem;
    padding: 1.1rem;
  }

  /* Cloud upsell box: less padding on phones */
  .horizon-box {
    padding: 1.5rem 1.3rem;
  }
  .horizon-head {
    flex-wrap: wrap;
  }
  .horizon-cta {
    flex-direction: column;
    align-items: stretch;
  }
  .horizon-cta .button-azure,
  .horizon-cta .button-azure-outline {
    text-align: center;
  }

  /* Scenarios banner + CTA card stack vertically */
  .cta-card {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }
  .cta-card .arrow {
    align-self: flex-end;
  }
}

@media (max-width: 460px) {
  .container {
    width: 92vw;
  }
  .nav {
    row-gap: 0.55rem;
  }
  .nav-toggle {
    padding: 0.62rem 0.82rem;
    gap: 0.5rem;
  }
  .nav-toggle-label {
    font-size: 0.92rem;
  }
  .hero h1 {
    font-size: clamp(2.45rem, 11vw, 3rem);
  }
  .brand {
    font-size: 1.12rem;
  }
  .brand-mark {
    width: 26px;
    height: 26px;
  }
  /* Comfortable reading size, avoid zoom-on-focus quirks */
  .subtitle,
  .section-lede {
    font-size: 1rem;
  }
}