:root {
  color-scheme: light;
  --dark: #07110f;
  --dark-2: #0c1716;
  --ink: #14201e;
  --muted: #66736f;
  --paper: #ffffff;
  --page: #f5f7f6;
  --line: #dfe7e4;
  --dark-line: rgba(230, 238, 235, 0.14);
  --brand: #2d88f5;
  --green: #26b978;
  --amber: #b9964f;
  --red: #de4f52;
  --shadow: 0 24px 70px rgba(12, 23, 22, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  min-height: 72px;
  padding: 14px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid var(--dark-line);
  background: rgba(7, 17, 15, 0.9);
  backdrop-filter: blur(18px);
}

.brand img {
  display: block;
  width: 154px;
  height: auto;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: clamp(14px, 3vw, 34px);
  color: #cad5d1;
  font-size: 14px;
}

.nav-links a:hover {
  color: #fff;
}

.header-cta,
.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 6px;
  padding: 0 18px;
  font-weight: 700;
  font-size: 14px;
}

.header-cta,
.primary-btn {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 14px 34px rgba(45, 136, 245, 0.2);
}

.secondary-btn {
  border: 1px solid rgba(244, 247, 246, 0.18);
  color: #edf3f1;
  background: rgba(244, 247, 246, 0.04);
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(420px, 0.78fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  min-height: calc(100vh - 72px);
  padding: clamp(48px, 8vw, 108px) clamp(18px, 5vw, 72px) 52px;
  color: #f4f7f6;
  background:
    linear-gradient(115deg, rgba(45, 136, 245, 0.15), transparent 36rem),
    radial-gradient(circle at 82% 8%, rgba(38, 185, 120, 0.09), transparent 28rem),
    linear-gradient(180deg, #07110f 0%, #081312 100%);
}

.hero-copy {
  max-width: 820px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid rgba(185, 150, 79, 0.45);
  border-radius: 999px;
  padding: 0 11px;
  color: #d1ad62;
  background: rgba(185, 150, 79, 0.08);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 20px;
  max-width: 780px;
  font-size: clamp(44px, 7vw, 86px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4.6vw, 58px);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  letter-spacing: 0;
}

p {
  color: var(--muted);
  line-height: 1.68;
}

.hero p {
  max-width: 650px;
  color: #aebbb7;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0;
}

.proof-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.proof-strip span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  border: 1px solid var(--dark-line);
  border-radius: 6px;
  padding: 0 12px;
  color: #cbd5d2;
  background: rgba(244, 247, 246, 0.035);
}

.proof-strip strong {
  color: #fff;
}

.ops-panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--dark-line);
  border-radius: 8px;
  padding: 18px;
  background: linear-gradient(180deg, rgba(16, 28, 32, 0.96), rgba(7, 17, 15, 0.98));
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.42);
}

.ops-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--green), var(--amber));
}

.ops-panel > * {
  position: relative;
}

.panel-head,
.risk-bar,
.source-row,
.odds-board {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.panel-head {
  margin-bottom: 18px;
}

.panel-label,
.source-row span,
.odds-board span,
.risk-bar span {
  display: block;
  color: #8fa09d;
  font-size: 12px;
  font-weight: 700;
}

.panel-head strong {
  display: block;
  margin-top: 5px;
  font-size: 18px;
}

.status-live {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  border-radius: 999px;
  padding: 0 12px;
  color: #00170c;
  background: var(--green);
  font-weight: 800;
  font-size: 12px;
}

.source-grid {
  display: grid;
  gap: 10px;
}

.source-row {
  min-height: 72px;
  border: 1px solid var(--dark-line);
  border-radius: 6px;
  padding: 12px;
  background: rgba(244, 247, 246, 0.035);
}

.source-row strong {
  color: #fff;
}

.source-row em {
  color: #93a5a1;
  font-size: 12px;
  font-style: normal;
}

.source-row.danger {
  border-color: rgba(222, 79, 82, 0.5);
}

.source-row.warning {
  border-color: rgba(185, 150, 79, 0.52);
}

.source-row.ok {
  border-color: rgba(38, 185, 120, 0.46);
}

.odds-board {
  margin: 18px 0;
}

.odds-board div {
  flex: 1;
  min-height: 92px;
  border: 1px solid var(--dark-line);
  border-radius: 6px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.035);
}

.odds-board strong {
  display: block;
  margin: 6px 0;
  font-size: 34px;
}

.odds-board small {
  color: var(--green);
  font-weight: 800;
}

.risk-bar {
  min-height: 54px;
  border: 1px solid rgba(185, 150, 79, 0.3);
  border-radius: 6px;
  padding: 0 14px;
  background: linear-gradient(90deg, rgba(185, 150, 79, 0.12), rgba(45, 136, 245, 0.08));
}

section:not(.hero) {
  padding: 86px clamp(18px, 5vw, 72px);
}

.section-copy {
  max-width: 800px;
}

.section-copy.centered {
  max-width: 920px;
  margin: 0 auto 38px;
  text-align: center;
}

.section-copy.centered p {
  margin-left: auto;
  margin-right: auto;
  max-width: 760px;
}

.platform,
.engine,
.comparison,
.use-cases {
  background: var(--paper);
}

.problem,
.trading,
.api {
  background: var(--page);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.visual-strip,
.engagement-visual {
  margin: 0 auto 28px;
  max-width: 1120px;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.visual-strip img,
.engagement-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.platform-grid article,
.engine-grid article,
.case-grid article,
.compare-grid > div {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: var(--paper);
  box-shadow: none;
}

.module-tag {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  margin-bottom: 16px;
  border-radius: 999px;
  padding: 0 10px;
  color: #4d3b11;
  background: #f4ead2;
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.problem {
  display: grid;
  grid-template-columns: 0.78fr 1fr;
  gap: 40px;
}

.problem-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.problem-list span,
.compare-grid span {
  display: flex;
  align-items: center;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 11px 13px;
  color: #2d3b38;
  background: #fff;
}

.engine-grid,
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.continuity-visual {
  display: grid;
  grid-template-columns: 0.58fr 1fr;
  gap: 28px;
  align-items: center;
  max-width: 1120px;
  margin: 30px auto 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: #fff;
  box-shadow: var(--shadow);
}

.continuity-visual .visual-copy {
  max-width: 420px;
}

.continuity-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
}

.step-number {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(45, 136, 245, 0.2);
  border-radius: 8px;
  margin-bottom: 18px;
  color: var(--brand);
  background: #eef6ff;
  font-weight: 900;
}

ul {
  margin: 18px 0 0;
  padding-left: 18px;
  color: #2d3b38;
  line-height: 1.8;
}

.trading {
  display: grid;
  grid-template-columns: 0.62fr 1fr;
  gap: 34px;
  align-items: start;
}

.trading-board,
.scenario-panel,
.api pre {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.trading-board {
  display: grid;
  gap: 10px;
  padding: 16px;
}

.trading-row {
  display: grid;
  grid-template-columns: 150px 1fr auto;
  align-items: center;
  gap: 14px;
  min-height: 64px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 14px;
  background: #fbfcfc;
}

.trading-row span {
  color: #73807c;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.trading-row strong {
  color: var(--ink);
}

.trading-row em {
  justify-self: end;
  min-width: 64px;
  border-radius: 999px;
  padding: 6px 10px;
  color: #fff;
  background: var(--green);
  text-align: center;
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}

.demo {
  display: grid;
  grid-template-columns: 0.72fr 1fr;
  gap: 30px;
  align-items: start;
  color: #f4f7f6;
  background:
    linear-gradient(115deg, rgba(45, 136, 245, 0.11), transparent 34rem),
    linear-gradient(180deg, #07110f, #0a1513);
}

.demo p {
  color: #aebbb7;
}

.scenario-panel {
  background: linear-gradient(180deg, rgba(16, 28, 32, 0.96), rgba(7, 17, 15, 0.98));
  border-color: var(--dark-line);
  padding: 16px;
}

.scenario-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 14px;
}

.scenario-tabs button {
  min-height: 40px;
  border: 1px solid var(--dark-line);
  border-radius: 6px;
  color: #cbd5d2;
  background: rgba(244, 247, 246, 0.04);
  font: inherit;
  font-size: 12px;
  font-weight: 800;
}

.scenario-tabs button.active {
  border-color: rgba(45, 136, 245, 0.65);
  background: rgba(45, 136, 245, 0.18);
  color: #fff;
}

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

.timeline-row {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 10px 16px;
  min-height: 70px;
  border: 1px solid var(--dark-line);
  border-radius: 6px;
  padding: 12px;
  background: rgba(244, 247, 246, 0.035);
}

.timeline-row span {
  color: #8fc2ff;
  font-weight: 900;
}

.timeline-row strong {
  color: #fff;
}

.timeline-row em {
  grid-column: 2;
  color: #93a5a1;
  font-style: normal;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

.timeline-row.active {
  border-color: rgba(45, 136, 245, 0.52);
}

.comparison {
  display: grid;
  grid-template-columns: 0.58fr 1fr;
  gap: 36px;
  align-items: start;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.compare-grid span {
  margin-top: 10px;
}

.highlight-card {
  border-color: rgba(45, 136, 245, 0.28) !important;
}

.api {
  display: grid;
  grid-template-columns: 0.56fr 1fr;
  gap: 34px;
  align-items: start;
}

.api pre {
  margin: 0;
  overflow: auto;
  padding: 24px;
  color: #d9ebe7;
  background: #07110f;
  font-size: 14px;
  line-height: 1.72;
}

.api code {
  font-family: "SFMono-Regular", Consolas, monospace;
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 0 clamp(18px, 5vw, 72px) 72px;
  border: 1px solid #cbd7d3;
  border-radius: 8px;
  padding: 34px;
  background: #fff;
  box-shadow: var(--shadow);
}

.cta-band h2 {
  margin-bottom: 10px;
  font-size: clamp(28px, 4vw, 46px);
}

.cta-band p {
  margin-bottom: 0;
}

@media (max-width: 1040px) {
  .hero,
  .problem,
  .continuity-visual,
  .trading,
  .demo,
  .comparison,
  .api {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .ops-panel {
    max-width: 680px;
  }
}

@media (max-width: 760px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav-links {
    display: none;
  }

  .brand img {
    width: 132px;
  }

  .hero {
    padding-top: 42px;
  }

  h1 {
    font-size: 42px;
  }

  .problem-list,
  .platform-grid,
  .engine-grid,
  .case-grid,
  .compare-grid,
  .scenario-tabs {
    grid-template-columns: 1fr;
  }

  .odds-board {
    flex-direction: column;
  }

  .odds-board div {
    width: 100%;
  }

  .cta-band {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
  }

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

  .trading-row em {
    justify-self: start;
  }
}