:root {
  --ink: #17201f;
  --muted: #5a6866;
  --paper: #fbfaf5;
  --warm: #efe6d7;
  --line: #ded7c9;
  --teal: #196d6a;
  --teal-dark: #0d3e3d;
  --coral: #d86c55;
  --brass: #b7843f;
  --charcoal: #111817;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(23, 32, 31, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: inherit;
}

code,
pre {
  font-family:
    "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 10px 14px;
  color: var(--white);
  background: var(--teal-dark);
  border-radius: 6px;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 10;
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0;
  color: var(--white);
}

.brand,
.nav-links,
.nav-cta,
.button,
.tab-button,
.copy-button,
.source-link {
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 800;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
  background: rgba(17, 24, 23, 0.34);
  color: var(--white);
  font-size: 0.78rem;
  letter-spacing: 0;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  background: rgba(17, 24, 23, 0.24);
  backdrop-filter: blur(16px);
}

.nav-links a,
.nav-cta {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-cta:hover,
.nav-cta:focus-visible {
  color: #ffe1d3;
}

.nav-cta {
  padding: 10px 16px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
}

.hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: 72svh;
  overflow: hidden;
  color: var(--white);
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(12, 21, 20, 0.9) 0%, rgba(12, 21, 20, 0.78) 28%, rgba(12, 21, 20, 0.22) 62%, rgba(12, 21, 20, 0.06) 100%),
    linear-gradient(180deg, rgba(12, 21, 20, 0.4) 0%, rgba(12, 21, 20, 0.2) 58%, rgba(12, 21, 20, 0.7) 100%),
    url("assets/metabrain-hero.jpg") center / cover no-repeat;
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: -1;
  height: 32%;
  content: "";
  background: linear-gradient(180deg, rgba(251, 250, 245, 0) 0%, var(--paper) 100%);
}

.hero-content {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 112px 0 68px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--coral);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  max-width: 680px;
  font-size: clamp(4.1rem, 11.4vw, 8.6rem);
  line-height: 0.9;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 850px;
  margin: 22px 0 0;
  font-size: clamp(1.5rem, 3.4vw, 2.8rem);
  font-weight: 750;
  line-height: 1.05;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 760px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.12rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 800;
}

.button.primary {
  color: var(--charcoal);
  background: var(--white);
}

.button.primary:hover,
.button.primary:focus-visible {
  background: #ffe3d7;
  transform: translateY(-1px);
}

.button.secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.42);
  background: rgba(17, 24, 23, 0.3);
}

.button.secondary:hover,
.button.secondary:focus-visible {
  border-color: rgba(255, 255, 255, 0.72);
  transform: translateY(-1px);
}

.section-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.install-band {
  padding: 56px 0 70px;
  background: var(--paper);
}

.install-layout,
.server-layout,
.agent-grid,
.quickstart-layout,
.open-source-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1fr);
  gap: clamp(32px, 6vw, 72px);
  align-items: start;
}

.section-intro h2,
.split-heading h2,
.quickstart-layout h2,
.open-source-grid h2 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.section-intro p:not(.section-kicker),
.split-heading p,
.quickstart-layout p,
.open-source-grid p {
  max-width: 650px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.terminal-panel,
.workflow-panel {
  border: 1px solid rgba(23, 32, 31, 0.12);
  border-radius: 8px;
  background: #fbf7ee;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.terminal-panel.quiet {
  box-shadow: none;
}

.platform-tabs {
  display: flex;
  gap: 6px;
  padding: 10px;
  background: #ebe2d4;
  overflow-x: auto;
}

.tab-button,
.copy-button {
  border: 0;
  border-radius: 7px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.tab-button {
  flex: 0 0 auto;
  padding: 10px 12px;
  color: var(--muted);
  background: transparent;
}

.tab-button:hover,
.tab-button:focus-visible,
.tab-button.active {
  color: var(--white);
  background: var(--teal);
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 18px 0;
}

.terminal-title {
  margin: 0;
  font-weight: 850;
}

.terminal-note {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.copy-button {
  padding: 9px 12px;
  color: var(--white);
  background: var(--charcoal);
}

.copy-button:hover,
.copy-button:focus-visible {
  background: var(--teal);
}

.code-block {
  margin: 18px;
  padding: 18px;
  overflow-x: auto;
  color: #d4fff9;
  background: var(--charcoal);
  border-radius: 8px;
  font-size: 0.92rem;
  line-height: 1.65;
}

.code-block.compact {
  margin: 14px 0 24px;
  font-size: 0.86rem;
}

.agent-section,
.quickstart-section {
  padding: 88px 0;
}

.quickstart-section {
  background: #f2eadf;
}

.agent-section {
  background: var(--paper);
}

.server-section {
  padding: 88px 0;
  background: #e7efec;
}

.server-layout {
  align-items: center;
}

.server-panel {
  background: #f7fbf8;
}

.server-highlights {
  display: grid;
  gap: 0;
  margin-top: 30px;
  border-top: 1px solid rgba(23, 32, 31, 0.14);
}

.server-highlight {
  display: grid;
  grid-template-columns: 126px 1fr;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(23, 32, 31, 0.14);
}

.server-highlight strong {
  color: var(--teal-dark);
  font-size: 0.86rem;
  font-weight: 900;
  text-transform: uppercase;
}

.server-highlight span {
  color: var(--muted);
}

.workflow-panel {
  padding: 24px;
  background: var(--white);
  box-shadow: none;
}

.workflow-row {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  align-items: start;
}

.step-number,
.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  color: var(--teal-dark);
  background: #d6eee8;
  font-weight: 900;
}

.workflow-row h3,
.feature-card h3 {
  margin: 0;
  font-size: 1.08rem;
}

.workflow-row p,
.feature-card p {
  margin: 6px 0 0;
  color: var(--muted);
}

.features-section {
  padding: 92px 0;
  background: var(--paper);
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.55fr);
  gap: 42px;
  align-items: end;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 44px;
}

.feature-card {
  min-height: 218px;
  padding: 22px;
  border: 1px solid rgba(23, 32, 31, 0.12);
  border-radius: 8px;
  background: var(--white);
}

.feature-card:nth-child(2n) .feature-icon {
  color: #4a2b18;
  background: #f2ddc0;
}

.feature-card:nth-child(3n) .feature-icon {
  color: #5a201b;
  background: #f5d4ca;
}

.feature-card h3 {
  margin-top: 22px;
}

.quickstart-layout {
  align-items: center;
}

.open-source-section {
  padding: 92px 0;
  background: var(--teal-dark);
  color: var(--white);
}

.open-source-section .section-kicker {
  color: #ffb49f;
}

.open-source-section p {
  color: rgba(255, 255, 255, 0.78);
}

.source-links {
  display: grid;
  gap: 12px;
}

.source-link {
  display: grid;
  gap: 6px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.07);
}

.source-link:hover,
.source-link:focus-visible {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.11);
  transform: translateY(-1px);
}

.source-link span {
  color: rgba(255, 255, 255, 0.64);
  font-size: 0.84rem;
  font-weight: 800;
  text-transform: uppercase;
}

.source-link strong {
  font-size: 1.12rem;
}

.site-footer {
  padding: 28px 0;
  color: var(--muted);
  background: var(--paper);
}

.footer-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer-layout p {
  margin: 0;
}

.footer-layout a {
  font-weight: 800;
  text-decoration: none;
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .hero {
    min-height: 76svh;
  }

  .hero-bg {
    background:
      linear-gradient(180deg, rgba(12, 21, 20, 0.82) 0%, rgba(12, 21, 20, 0.5) 48%, rgba(12, 21, 20, 0.84) 100%),
      url("assets/metabrain-hero.jpg") 58% center / cover no-repeat;
  }

  .install-layout,
  .server-layout,
  .agent-grid,
  .quickstart-layout,
  .open-source-grid,
  .split-heading {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .nav-shell {
    width: min(100% - 24px, 1180px);
  }

  .nav-cta {
    display: none;
  }

  .hero-content {
    width: min(100% - 24px, 1180px);
    padding: 104px 0 54px;
  }

  .hero h1 {
    font-size: clamp(3.4rem, 20vw, 5.2rem);
  }

  .hero-lede {
    font-size: clamp(1.42rem, 9.2vw, 2.05rem);
  }

  .section-shell {
    width: min(100% - 24px, 1180px);
  }

  .install-band,
  .server-section,
  .agent-section,
  .features-section,
  .quickstart-section,
  .open-source-section {
    padding: 58px 0;
  }

  .terminal-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .copy-button {
    width: 100%;
  }

  .code-block {
    margin: 14px;
    padding: 14px;
    font-size: 0.8rem;
  }

  .workflow-panel {
    padding: 18px;
  }

  .workflow-row {
    grid-template-columns: 1fr;
  }

  .server-highlight {
    grid-template-columns: 1fr;
    gap: 4px;
  }

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

  .feature-card {
    min-height: auto;
  }

  .footer-layout {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}