:root {
  color-scheme: dark;
  --bg: #020617;
  --panel: #0f172a;
  --line: rgba(148, 163, 184, 0.2);
  --text: #e5e7eb;
  --muted: #94a3b8;
  --blue: #2563eb;
  --cyan: #38bdf8;
  --red: #f87171;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.22), transparent 32rem), #020617;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #020617;
  color: var(--text);
  padding: 10px 12px;
}
textarea { resize: vertical; line-height: 1.55; }
button, .topnav a {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #111827;
  color: var(--text);
  padding: 10px 12px;
  cursor: pointer;
}
button:disabled { opacity: 0.55; cursor: not-allowed; }
.shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.topnav { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 0; }
.brand { font-weight: 800; }
.hero-card, .panel, .card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.78);
  padding: 18px;
}
.hero-card { margin: 28px 0; }
.eyebrow { color: var(--cyan); font-size: 12px; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; }
h1 { margin: 8px 0 12px; font-size: clamp(38px, 6vw, 70px); line-height: 0.98; }
h2, h3 { margin: 0 0 10px; }
p, li { color: var(--muted); line-height: 1.65; }
label { display: grid; gap: 7px; color: #cbd5e1; font-weight: 700; }
.app-grid { display: grid; grid-template-columns: minmax(330px, 0.9fr) minmax(420px, 1.1fr); gap: 18px; align-items: start; }
.stack { display: grid; gap: 12px; }
.two, .button-grid, .cards, .metrics, .pipeline, .result-grid { display: grid; gap: 12px; }
.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.button-grid, .cards, .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.pipeline { grid-template-columns: repeat(7, minmax(0, 1fr)); }
.result-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.badge { border: 1px solid var(--line); border-radius: 999px; padding: 5px 9px; color: var(--muted); }
.notice, .status { border: 1px solid rgba(56, 189, 248, 0.3); border-radius: 12px; background: rgba(56, 189, 248, 0.08); padding: 12px; color: #bae6fd; }
.error { border: 1px solid rgba(248, 113, 113, 0.35); border-radius: 12px; background: rgba(248, 113, 113, 0.1); padding: 12px; color: #fecaca; }
.hidden { display: none !important; }
.json-box { border: 1px solid var(--line); border-radius: 14px; background: #020617; color: #cbd5e1; margin-top: 14px; padding: 14px; overflow: auto; max-height: 420px; }
@media (max-width: 900px) {
  .app-grid, .two, .button-grid, .cards, .metrics, .pipeline, .result-grid { grid-template-columns: 1fr; }
  .topnav { flex-wrap: wrap; }
}

/* Landing page */
.landing-page {
  background:
    radial-gradient(circle at 18% 6%, rgba(37, 99, 235, 0.25), transparent 34rem),
    radial-gradient(circle at 78% 12%, rgba(56, 189, 248, 0.12), transparent 32rem),
    linear-gradient(180deg, #020617 0%, #030712 58%, #020617 100%);
  letter-spacing: 0;
}

.landing-page a {
  color: inherit;
  text-decoration: none;
}

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

.landing-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(148, 163, 184, 0.16);
  background: rgba(2, 6, 23, 0.78);
  backdrop-filter: blur(20px);
}

.landing-nav {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  min-height: 74px;
}

.landing-brand,
.landing-navlinks,
.landing-actions,
.landing-cta-row,
.footer-inner,
.landing-footer nav {
  display: flex;
  align-items: center;
}

.landing-brand {
  gap: 12px;
  font-weight: 900;
  color: #f8fafc;
}

.landing-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(56, 189, 248, 0.42);
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.72), rgba(56, 189, 248, 0.14));
  color: #bae6fd;
}

.landing-navlinks {
  justify-content: center;
  gap: 18px;
  color: #cbd5e1;
  font-size: 14px;
}

.landing-navlinks a:hover,
.landing-footer a:hover {
  color: #f8fafc;
}

.landing-actions {
  justify-content: flex-end;
  gap: 10px;
}

.landing-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.82);
  color: #e5e7eb;
  padding: 10px 16px;
  font-weight: 800;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.landing-btn:hover {
  transform: translateY(-2px);
  border-color: rgba(56, 189, 248, 0.5);
  background: rgba(17, 24, 39, 0.96);
}

.landing-btn.primary {
  border-color: rgba(37, 99, 235, 0.78);
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
}

.landing-btn.ghost {
  color: #cbd5e1;
}

.landing-btn.large {
  min-height: 48px;
  padding: 12px 20px;
}

.landing-hero {
  min-height: calc(100vh - 74px);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(460px, 1.1fr);
  align-items: center;
  gap: 38px;
  padding: 68px 0 48px;
}

.landing-eyebrow {
  margin: 0 0 12px;
  color: #38bdf8;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.landing-hero h1 {
  margin: 0;
  max-width: 820px;
  color: #f8fafc;
  font-size: clamp(54px, 8vw, 104px);
  line-height: 0.92;
  letter-spacing: 0;
}

.landing-lead {
  max-width: 730px;
  margin: 24px 0 0;
  color: #dbeafe;
  font-size: clamp(20px, 2.5vw, 27px);
  line-height: 1.36;
}

.landing-sublead {
  max-width: 720px;
  margin: 16px 0 0;
  color: #aebed4;
  font-size: 17px;
}

.landing-cta-row {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.landing-cta-row.center {
  justify-content: center;
}

.landing-safety {
  max-width: 780px;
  margin: 18px 0 0;
  color: #fde68a;
  font-size: 14px;
}

.product-preview {
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 28px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.94), rgba(2, 6, 23, 0.96)),
    #0f172a;
  box-shadow: 0 32px 100px rgba(0, 0, 0, 0.44);
}

.preview-topbar {
  display: flex;
  align-items: center;
  gap: 9px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.16);
  padding: 14px 18px;
  color: #cbd5e1;
}

.preview-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.56);
}

.preview-topbar strong {
  margin-left: 8px;
}

.preview-grid {
  display: grid;
  grid-template-columns: 0.95fr 0.72fr 1fr;
  gap: 12px;
  padding: 16px;
}

.preview-column,
.preview-mini-card {
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: 18px;
  background: rgba(2, 6, 23, 0.66);
  padding: 16px;
}

.preview-column h3 {
  margin: 10px 0 8px;
  color: #f8fafc;
}

.preview-column p,
.preview-mini-card p {
  margin: 0;
  color: #aebed4;
}

.preview-label,
.landing-pill {
  display: inline-flex;
  width: fit-content;
  border: 1px solid rgba(56, 189, 248, 0.34);
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.08);
  color: #7dd3fc;
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 900;
}

.preview-pipeline {
  display: grid;
  gap: 9px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.preview-pipeline li {
  border: 1px solid rgba(56, 189, 248, 0.22);
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.8);
  color: #dbeafe;
  padding: 8px 10px;
  font-weight: 800;
}

.preview-column.output {
  display: grid;
  gap: 10px;
}

.preview-mini-card strong {
  display: block;
  margin-bottom: 5px;
  color: #f8fafc;
}

.landing-section {
  padding: 84px 0;
}

.landing-section-head {
  max-width: 820px;
  margin-bottom: 28px;
}

.landing-section-head h2,
.landing-final-cta h2 {
  margin: 0;
  color: #f8fafc;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1;
  letter-spacing: 0;
}

.landing-section-head p:not(.landing-eyebrow) {
  margin: 16px 0 0;
  color: #b6c4d8;
  font-size: 18px;
}

.landing-card-grid,
.process-grid,
.comparison-grid,
.demo-layout,
.demo-columns {
  display: grid;
  gap: 16px;
}

.landing-card-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.landing-card-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.landing-card,
.process-card,
.demo-option,
.demo-panel,
.comparison-card {
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 22px;
  background: rgba(15, 23, 42, 0.64);
  padding: 22px;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.landing-card:hover,
.process-card:hover,
.demo-option:hover,
.comparison-card:hover {
  transform: translateY(-3px);
  border-color: rgba(56, 189, 248, 0.42);
  background: rgba(15, 23, 42, 0.88);
}

.landing-card h3,
.process-card h3,
.demo-panel h3,
.comparison-card h3 {
  margin: 0;
  color: #f8fafc;
}

.landing-card p,
.process-card p,
.demo-option p,
.demo-panel p,
.comparison-card li {
  color: #aebed4;
}

.landing-card p,
.process-card p,
.demo-option p {
  margin-bottom: 0;
}

.problem-section {
  padding-top: 34px;
}

.process-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.process-card span {
  display: inline-flex;
  margin-bottom: 18px;
  border: 1px solid rgba(56, 189, 248, 0.32);
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.08);
  color: #7dd3fc;
  padding: 7px 11px;
  font-weight: 900;
}

.demo-layout {
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);
  align-items: stretch;
}

.demo-list {
  display: grid;
  gap: 12px;
}

.demo-option.active {
  border-color: rgba(56, 189, 248, 0.5);
  background: rgba(37, 99, 235, 0.14);
}

.demo-option strong {
  color: #f8fafc;
}

.demo-panel {
  display: grid;
  gap: 18px;
  background:
    radial-gradient(circle at 80% 0%, rgba(37, 99, 235, 0.22), transparent 20rem),
    rgba(15, 23, 42, 0.72);
}

.demo-panel-head {
  display: grid;
  gap: 12px;
}

.demo-columns {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.demo-columns article {
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: 18px;
  background: rgba(2, 6, 23, 0.58);
  padding: 16px;
}

.demo-columns span {
  color: #7dd3fc;
  font-weight: 900;
}

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

.comparison-card ul {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.comparison-card li {
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 14px;
  background: rgba(2, 6, 23, 0.45);
  padding: 12px;
}

.comparison-card.highlighted {
  border-color: rgba(56, 189, 248, 0.42);
  background: rgba(37, 99, 235, 0.12);
}

.architecture-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 22px;
}

.architecture-flow span {
  border: 1px solid rgba(56, 189, 248, 0.24);
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.7);
  color: #dbeafe;
  padding: 10px 13px;
  font-weight: 800;
}

.architecture-btn {
  margin-top: 22px;
}

.compact .landing-card {
  min-height: 82px;
  display: grid;
  align-items: center;
}

.landing-final-cta {
  margin: 56px auto 84px;
  border: 1px solid rgba(56, 189, 248, 0.22);
  border-radius: 30px;
  background:
    radial-gradient(circle at 20% 0%, rgba(37, 99, 235, 0.28), transparent 28rem),
    rgba(15, 23, 42, 0.7);
  padding: 54px 28px;
  text-align: center;
}

.landing-final-cta .landing-eyebrow {
  justify-content: center;
}

.landing-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.16);
  padding: 28px 0;
}

.footer-inner {
  justify-content: space-between;
  gap: 18px;
}

.landing-footer p {
  max-width: 660px;
  margin: 0;
  color: #94a3b8;
}

.landing-footer nav {
  gap: 14px;
  flex-wrap: wrap;
  color: #cbd5e1;
  font-weight: 800;
}

@media (max-width: 1100px) {
  .landing-nav {
    grid-template-columns: 1fr;
  }

  .landing-navlinks,
  .landing-actions {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .landing-hero,
  .preview-grid,
  .demo-layout,
  .demo-columns {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .landing-hero {
    min-height: auto;
    padding-top: 46px;
  }

  .landing-hero h1 {
    font-size: clamp(46px, 13vw, 68px);
  }

  .landing-card-grid.three,
  .landing-card-grid.four,
  .process-grid,
  .comparison-grid {
    grid-template-columns: 1fr;
  }

  .landing-section {
    padding: 58px 0;
  }

  .landing-navlinks {
    display: none;
  }

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

/* Calm landing refresh */
.calm-landing {
  background:
    radial-gradient(circle at 16% 0%, rgba(37, 99, 235, 0.16), transparent 30rem),
    linear-gradient(180deg, #020617 0%, #030712 54%, #020617 100%);
}

.calm-header {
  background: rgba(2, 6, 23, 0.9);
}

.calm-nav {
  min-height: 70px;
}

.calm-navlinks {
  gap: 22px;
}

.calm-actions {
  gap: 10px;
}

.calm-hero {
  min-height: auto;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(390px, 0.82fr);
  gap: 48px;
  align-items: center;
  padding: 86px 0 58px;
}

.calm-hero h1 {
  max-width: 780px;
  margin: 0;
  color: #f8fafc;
  font-size: clamp(44px, 6.2vw, 78px);
  line-height: 0.98;
  letter-spacing: 0;
}

.calm-hero .landing-lead {
  max-width: 720px;
  color: #dbeafe;
  font-size: clamp(20px, 2.2vw, 25px);
  line-height: 1.42;
}

.calm-hero .landing-sublead {
  max-width: 700px;
  color: #b6c4d8;
  font-size: 17px;
}

.calm-hero .landing-safety {
  color: #f8d88a;
}

.calm-mockup {
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 24px;
  background: rgba(15, 23, 42, 0.74);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  overflow: hidden;
}

.calm-mockup-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.16);
  padding: 16px 18px;
}

.calm-mockup-head strong {
  color: #f8fafc;
}

.calm-mockup-head span {
  color: #94a3b8;
}

.calm-flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 18px;
}

.calm-flow section {
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: 18px;
  background: rgba(2, 6, 23, 0.54);
  padding: 18px;
}

.calm-flow section span,
.demo-columns span {
  display: inline-flex;
  margin-bottom: 10px;
  color: #7dd3fc;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.calm-flow h3 {
  color: #f8fafc;
}

.calm-flow p,
.calm-flow li {
  color: #b6c4d8;
}

.calm-flow ul {
  display: grid;
  gap: 7px;
  margin: 10px 0 0;
  padding-left: 18px;
}

.calm-intro {
  padding-top: 34px;
}

.calm-three {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.calm-card h2 {
  margin: 0;
  color: #f8fafc;
  font-size: 24px;
  line-height: 1.15;
}

.calm-head {
  max-width: 760px;
}

.calm-head h2 {
  font-size: clamp(32px, 4.3vw, 52px);
  line-height: 1.06;
}

.calm-head p:not(.landing-eyebrow) {
  color: #b6c4d8;
  font-size: 17px;
}

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

.calm-panel {
  padding: 26px;
}

.calm-panel li {
  color: #cbd5e1;
}

.calm-process {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.calm-process .process-card,
.calm-usecases .landing-card,
.calm-output .landing-card,
.calm-limits .landing-card,
.calm-card,
.calm-panel,
.calm-example {
  background: rgba(15, 23, 42, 0.58);
}

.calm-usecases {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.calm-usecases .landing-card {
  min-height: 230px;
}

.calm-example {
  display: grid;
  gap: 18px;
  padding: 22px;
}

.calm-example .demo-columns {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.calm-output {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.calm-architecture {
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.calm-flowline {
  margin-bottom: 22px;
}

.calm-flowline span {
  background: rgba(15, 23, 42, 0.62);
}

.calm-limits {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.calm-final {
  max-width: 1180px;
  margin-top: 40px;
  margin-bottom: 74px;
  background: rgba(15, 23, 42, 0.68);
}

@media (max-width: 1100px) {
  .calm-hero,
  .calm-three,
  .calm-process,
  .calm-usecases,
  .calm-output,
  .calm-limits,
  .calm-example .demo-columns {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .calm-hero,
  .calm-three,
  .calm-compare-grid,
  .calm-process,
  .calm-usecases,
  .calm-output,
  .calm-limits,
  .calm-example .demo-columns {
    grid-template-columns: 1fr;
  }

  .calm-hero {
    padding-top: 44px;
  }

  .calm-hero h1 {
    font-size: clamp(40px, 11vw, 56px);
  }
}