:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #5e6a77;
  --line: #d9e0e8;
  --panel: #ffffff;
  --soft: #f5f7fa;
  --green: #2f8f63;
  --blue: #1d5f9f;
  --amber: #b36b18;
  --red: #b23b4a;
  --shadow: 0 18px 50px rgba(23, 32, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--soft);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
  padding: 0 32px;
  border-bottom: 1px solid rgba(217, 224, 232, 0.85);
  background: rgba(245, 247, 250, 0.92);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--green);
  color: #fff;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 650;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 1.1fr);
  gap: 48px;
  align-items: center;
  min-height: calc(100vh - 68px);
  padding: 76px 48px 64px;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.95), rgba(245, 247, 250, 0.72)),
    repeating-linear-gradient(90deg, rgba(29, 95, 159, 0.07) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(47, 143, 99, 0.07) 0 1px, transparent 1px 96px);
}

.hero-copy,
.section-copy {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(4rem, 14vw, 8.8rem);
  line-height: 0.9;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.lede {
  max-width: 650px;
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 750;
}

.button.primary {
  border-color: var(--green);
  background: var(--green);
  color: #fff;
}

.button.secondary {
  background: #fff;
}

.protocol-panel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 120px 1fr;
  grid-template-rows: auto auto;
  gap: 22px;
  align-items: center;
  min-height: 560px;
  padding: 28px;
  border: 1px solid rgba(217, 224, 232, 0.95);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.node {
  min-height: 132px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.node-title,
.node-meta {
  display: block;
}

.node-title {
  font-size: 1.4rem;
  font-weight: 850;
}

.node-meta {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.95rem;
}

.client {
  border-top: 5px solid var(--blue);
}

.postgres {
  border-top: 5px solid var(--green);
}

.stream {
  display: grid;
  gap: 10px;
}

.stream span {
  display: block;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--blue), var(--green));
}

.stream span:nth-child(2) {
  margin-left: 22px;
  background: linear-gradient(90deg, var(--green), var(--amber));
}

.stream span:nth-child(3) {
  margin-right: 22px;
  background: linear-gradient(90deg, var(--amber), var(--red));
}

.query-window {
  grid-column: 1 / -1;
  align-self: stretch;
  overflow: hidden;
  border: 1px solid #223044;
  border-radius: 8px;
  background: #111827;
}

.window-bar {
  display: flex;
  gap: 8px;
  padding: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.window-bar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--red);
}

.window-bar span:nth-child(2) {
  background: var(--amber);
}

.window-bar span:nth-child(3) {
  background: var(--green);
}

pre {
  margin: 0;
  overflow-x: auto;
}

code {
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.92rem;
}

.query-window pre,
.code-card pre {
  padding: 22px;
}

.query-window code {
  color: #d8f3dc;
}

.strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--line);
}

.strip div {
  padding: 28px 32px;
  background: #fff;
}

.strip strong,
.strip span {
  display: block;
}

.strip span {
  margin-top: 6px;
  color: var(--muted);
}

.section {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  gap: 42px;
  align-items: start;
  padding: 84px 48px;
  background: #fff;
}

.section.alt {
  background: #f9fbfd;
}

.section p {
  color: var(--muted);
}

.code-grid {
  display: grid;
  gap: 18px;
}

.code-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #101820;
  color: #ecf2f8;
}

.code-card figcaption {
  padding: 12px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  color: #9bb4cc;
  font-size: 0.86rem;
  font-weight: 700;
}

.code-card.wide {
  width: 100%;
}

.code-card.terminal {
  align-self: stretch;
}

.features {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  background: var(--soft);
}

.feature-card {
  min-height: 180px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.feature-card:nth-child(1) {
  border-top: 5px solid var(--blue);
}

.feature-card:nth-child(2) {
  border-top: 5px solid var(--green);
}

.feature-card:nth-child(3) {
  border-top: 5px solid var(--amber);
}

.feature-card:nth-child(4) {
  border-top: 5px solid var(--red);
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: #fff;
  font-size: 0.95rem;
}

.footer span {
  color: var(--ink);
  font-weight: 800;
}

@media (max-width: 940px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 22px;
  }

  .nav {
    flex-wrap: wrap;
    gap: 12px 16px;
  }

  .hero,
  .section {
    grid-template-columns: 1fr;
    padding: 56px 22px;
  }

  .hero {
    min-height: auto;
  }

  .protocol-panel {
    min-height: 0;
  }

  .strip,
  .features {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 44px;
  }

  .actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .protocol-panel {
    grid-template-columns: 1fr;
    padding: 18px;
  }

  .stream {
    grid-template-columns: repeat(3, 1fr);
  }

  .stream span,
  .stream span:nth-child(2),
  .stream span:nth-child(3) {
    margin: 0;
  }

  .strip,
  .features {
    grid-template-columns: 1fr;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 24px 22px;
  }
}