:root {
  color-scheme: light;
  --bg: #ffffff;
  --panel: #f7f8fa;
  --card: #ffffff;
  --ink: #18181b;
  --muted: #5d6572;
  --line: #e2e5e9;
  --green: #2f6f4e;
  --coral: #c84f3d;
  --gold: #d7a93f;
  --white: #ffffff;
  --coral-soft: rgba(200, 79, 61, 0.1);
  --gold-soft: rgba(215, 169, 63, 0.14);
  --green-soft: rgba(47, 111, 78, 0.12);
  --header-bg: rgba(255, 255, 255, 0.92);
  --pill-text: #5f4820;
  --gold-text: #8a671e;
  --button-secondary-border: rgba(47, 111, 78, 0.3);
  --shadow: 0 24px 70px rgba(24, 24, 27, 0.08);
  --terminal-bg: #111315;
  --terminal-text: #f2f6f4;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1017;
  --panel: #11151d;
  --card: #171b24;
  --ink: #e5e7eb;
  --muted: #94a3b8;
  --line: #262c38;
  --green: #5fbf86;
  --coral: #f07167;
  --gold: #e3bf62;
  --coral-soft: rgba(240, 113, 103, 0.14);
  --gold-soft: rgba(227, 191, 98, 0.14);
  --green-soft: rgba(95, 191, 134, 0.14);
  --header-bg: rgba(13, 16, 23, 0.92);
  --pill-text: #f1d58a;
  --gold-text: #e3bf62;
  --button-secondary-border: rgba(95, 191, 134, 0.42);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
  --terminal-bg: #080a0f;
  --terminal-text: #f2f6f4;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

.site-header {
  align-items: center;
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  left: 0;
  padding: 18px clamp(20px, 5vw, 64px);
  position: sticky;
  right: 0;
  top: 0;
  z-index: 10;
}

.brand {
  align-items: center;
  display: inline-flex;
  font-weight: 850;
  gap: 10px;
}

.brand-mark {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: block;
  height: 34px;
  width: 34px;
}

.nav-links {
  align-items: center;
  display: flex;
  font-size: 0.95rem;
  font-weight: 700;
  gap: 24px;
}

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

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--ink);
}

.theme-toggle {
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 800;
  gap: 8px;
  min-height: 40px;
  padding: 8px 12px;
}

.theme-toggle-icon {
  background: var(--gold);
  border-radius: 999px;
  display: inline-block;
  height: 12px;
  width: 12px;
}

html[data-theme="dark"] .theme-toggle-icon {
  background: var(--green);
  box-shadow: inset -4px -2px 0 #0d1017;
}

.hero {
  padding: 96px clamp(20px, 5vw, 64px) 112px;
}

.hero-inner,
.section-inner {
  margin: 0 auto;
  max-width: 1120px;
}

.hero-inner {
  align-items: center;
  display: grid;
  gap: 64px;
  grid-template-columns: minmax(0, 1.05fr) minmax(330px, 0.75fr);
}

.hero-copy {
  max-width: 760px;
}

.pill {
  background: var(--gold-soft);
  border: 1px solid rgba(215, 169, 63, 0.36);
  border-radius: 999px;
  color: var(--pill-text);
  display: inline-flex;
  font-size: 0.92rem;
  font-weight: 750;
  margin: 0 0 24px;
  padding: 6px 12px;
}

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

h1 {
  font-size: 4.8rem;
  letter-spacing: 0;
  line-height: 0.98;
  margin-bottom: 24px;
  max-width: 11ch;
}

.lead {
  color: var(--muted);
  font-size: 1.25rem;
  line-height: 1.75;
  max-width: 760px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.button {
  border: 1px solid transparent;
  border-radius: 8px;
  display: inline-flex;
  font-size: 0.96rem;
  font-weight: 800;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
}

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

.button.secondary {
  border-color: var(--button-secondary-border);
  color: var(--ink);
}

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

.signal-strip {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 38px 0 0;
  max-width: 680px;
}

.signal-strip div {
  border-top: 3px solid var(--line);
  padding-top: 12px;
}

.signal-strip div:nth-child(1) {
  border-color: var(--coral);
}

.signal-strip div:nth-child(2) {
  border-color: var(--gold);
}

.signal-strip div:nth-child(3) {
  border-color: var(--green);
}

.signal-strip dt {
  font-size: 0.82rem;
  font-weight: 900;
  margin-bottom: 3px;
  text-transform: uppercase;
}

.signal-strip div:nth-child(1) dt {
  color: var(--coral);
}

.signal-strip div:nth-child(2) dt {
  color: var(--gold-text);
}

.signal-strip div:nth-child(3) dt {
  color: var(--green);
}

.signal-strip dd {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0;
}

.product-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 20px;
}

.panel-header {
  display: flex;
  gap: 7px;
  margin-bottom: 18px;
}

.panel-header span {
  background: var(--line);
  border-radius: 999px;
  height: 10px;
  width: 10px;
}

.panel-header span:nth-child(1) {
  background: var(--coral);
}

.panel-header span:nth-child(2) {
  background: var(--gold);
}

.panel-header span:nth-child(3) {
  background: var(--green);
}

.decision-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
}

.decision-card.proposed {
  background: linear-gradient(180deg, var(--coral-soft), var(--card) 42%);
  border-color: rgba(200, 79, 61, 0.28);
}

.decision-card small {
  color: var(--coral);
  display: block;
  font-size: 0.78rem;
  font-weight: 900;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.decision-card strong {
  display: block;
  font-size: 1.15rem;
  line-height: 1.25;
  margin-bottom: 10px;
}

.decision-card p {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 0;
}

.approved {
  background: linear-gradient(180deg, var(--green-soft), var(--card) 42%);
  border-color: rgba(47, 111, 78, 0.38);
}

.approved small {
  color: var(--green);
}

.flow-arrow {
  color: var(--muted);
  font-size: 1.6rem;
  font-weight: 700;
  padding: 12px 0;
  text-align: center;
}

.loop-section {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  padding: 80px clamp(20px, 5vw, 64px);
}

.summary-section,
.inside-section,
.quickstart,
.details-section {
  padding: 82px clamp(20px, 5vw, 64px);
}

.eyebrow {
  color: var(--coral);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0;
  margin-bottom: 12px;
  text-transform: uppercase;
}

h2 {
  font-size: 2.6rem;
  letter-spacing: 0;
  line-height: 1.08;
  margin-bottom: 28px;
  max-width: 760px;
}

.loop-grid,
.summary-grid {
  display: grid;
  gap: 16px;
}

.loop-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: 38px;
}

.loop-grid article,
.summary-grid article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.loop-grid article {
  border-top-width: 4px;
}

.loop-grid article:nth-child(1) {
  border-top-color: var(--coral);
}

.loop-grid article:nth-child(2),
.loop-grid article:nth-child(3) {
  border-top-color: var(--gold);
}

.loop-grid article:nth-child(4),
.loop-grid article:nth-child(5) {
  border-top-color: var(--green);
}

.loop-grid h3 {
  font-size: 0.86rem;
  letter-spacing: 0;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.loop-grid article:nth-child(1) h3 {
  color: var(--coral);
}

.loop-grid article:nth-child(2) h3,
.loop-grid article:nth-child(3) h3 {
  color: var(--gold-text);
}

.loop-grid article:nth-child(4) h3,
.loop-grid article:nth-child(5) h3 {
  color: var(--green);
}

.loop-grid p,
.summary-grid p,
.section-copy,
.detail-list {
  color: var(--muted);
}

.loop-grid p,
.summary-grid p {
  font-size: 0.98rem;
  margin-bottom: 0;
}

.summary-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
}

.summary-grid h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.summary-grid article:nth-child(1) {
  background: linear-gradient(180deg, var(--coral-soft), var(--card) 36%);
}

.summary-grid article:nth-child(2) {
  background: linear-gradient(180deg, var(--gold-soft), var(--card) 36%);
}

.summary-grid article:nth-child(3) {
  background: linear-gradient(180deg, var(--green-soft), var(--card) 36%);
}

.quickstart {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
}

.inside-inner,
.details-inner {
  align-items: start;
  display: grid;
  gap: 56px;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
}

.quickstart-inner {
  align-items: start;
  display: grid;
  gap: 56px;
  grid-template-columns: minmax(320px, 1fr) minmax(0, 0.9fr);
}

.inside-section {
  border-top: 1px solid var(--line);
}

.console-preview {
  background: #0d1017;
  border: 1px solid #262c38;
  border-radius: 8px;
  color: #e5e7eb;
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  min-height: 330px;
  overflow: hidden;
}

.console-sidebar {
  background: #0a0d14;
  border-right: 1px solid #262c38;
  display: grid;
  gap: 10px;
  padding: 18px;
}

.console-brand {
  align-items: center;
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.console-brand img {
  height: 28px;
  width: 28px;
}

.console-sidebar span {
  border: 1px solid transparent;
  border-radius: 8px;
  color: #94a3b8;
  font-weight: 800;
  padding: 9px 10px;
}

.console-sidebar .active {
  background: #171b24;
  border-color: #d7a93f;
  color: #e5e7eb;
}

.console-main {
  padding: 28px;
}

.console-title {
  border-bottom: 1px solid #262c38;
  display: grid;
  gap: 8px;
  padding-bottom: 22px;
}

.console-title strong {
  font-size: 1.8rem;
}

.console-title span,
.console-empty,
.console-row {
  color: #94a3b8;
}

.console-empty {
  background: #171b24;
  border: 1px solid #262c38;
  border-radius: 8px;
  font-weight: 750;
  margin: 28px 0 18px;
  padding: 34px 18px;
  text-align: center;
}

.console-row {
  align-items: center;
  border-top: 1px solid #262c38;
  display: flex;
  justify-content: space-between;
  padding: 14px 0;
}

.console-row strong {
  color: #e5e7eb;
}

.section-copy {
  font-size: 1.08rem;
  max-width: 620px;
}

.terminal {
  background: var(--terminal-bg);
  border-left: 6px solid var(--green);
  border-radius: 8px;
  color: var(--terminal-text);
  font-size: 1rem;
  line-height: 1.75;
  margin: 0;
  overflow-x: auto;
  padding: 28px;
}

.detail-list {
  display: grid;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.detail-list li {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.detail-list code {
  background: rgba(47, 111, 78, 0.12);
  border-radius: 6px;
  color: var(--ink);
  font-size: 0.9em;
  padding: 2px 5px;
}

.site-footer {
  align-items: center;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  font-size: 0.95rem;
  justify-content: space-between;
  padding: 32px clamp(20px, 5vw, 64px);
}

.site-footer p {
  margin-bottom: 0;
}

.site-footer a {
  color: var(--ink);
  font-weight: 750;
}

/* ── Pipeline tabs ───────────────────────────────────────────────── */
.pipeline-tabs {
  border-bottom: 1px solid var(--line);
  display: flex;
  margin-top: 38px;
  overflow-x: auto;
}

.pipeline-tab {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  margin-bottom: -1px;
  padding: 14px 22px 13px;
  text-transform: uppercase;
  transition: color 0.12s;
  white-space: nowrap;
}

.pipeline-tab:hover { color: var(--ink); }
.pipeline-tab.active[data-color="coral"] { border-bottom-color: var(--coral); color: var(--coral); }
.pipeline-tab.active[data-color="gold"]  { border-bottom-color: var(--gold); color: var(--gold-text); }
.pipeline-tab.active[data-color="green"] { border-bottom-color: var(--green); color: var(--green); }

.pipeline-panels { min-height: 320px; }

.pipeline-panel { display: none; }
.pipeline-panel.active {
  align-items: start;
  display: grid;
  gap: 56px;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  padding-top: 44px;
}

.pipeline-panel-text h3 {
  font-size: 1.6rem;
  margin-bottom: 18px;
}

.pipeline-panel-text p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
  margin-bottom: 12px;
}

.pipeline-panel-text p:last-child { margin-bottom: 0; }

.pipeline-panel-text code {
  background: rgba(47, 111, 78, 0.12);
  border-radius: 4px;
  font-size: 0.9em;
  padding: 1px 5px;
}

.pipeline-mock {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.pipeline-mock-header {
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  padding: 12px 18px;
  text-transform: uppercase;
}

.pipeline-mock-body { padding: 18px; }

@media (max-width: 900px) {
  h1 {
    font-size: 3.4rem;
  }

  h2 {
    font-size: 2.2rem;
  }

  .hero-inner,
  .quickstart-inner,
  .inside-inner,
  .details-inner {
    grid-template-columns: 1fr;
  }

  .pipeline-panel.active {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 620px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 14px;
  }

  .theme-toggle {
    width: 100%;
  }

  .hero {
    padding-top: 64px;
  }

  h1 {
    font-size: 2.65rem;
  }

  h2 {
    font-size: 1.9rem;
  }

  .lead {
    font-size: 1.08rem;
  }

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

  .console-preview {
    grid-template-columns: 1fr;
  }

  .console-sidebar {
    border-bottom: 1px solid #262c38;
    border-right: 0;
  }

  .actions,
  .section-actions,
  .signal-strip,
  .button {
    width: 100%;
  }

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

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
}