:root {
  --bg: #ffffff;
  --bg-soft: #fff8f3;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --text: #111111;
  --muted: #666666;
  --line: rgba(17, 17, 17, 0.08);
  --line-strong: rgba(17, 17, 17, 0.14);
  --orange: #ff7a18;
  --yellow: #ffb347;
  --coral: #ff5a3d;
  --shadow-soft: 0 22px 56px rgba(17, 17, 17, 0.08);
  --shadow-card: 0 16px 40px rgba(17, 17, 17, 0.07);
  --shadow-glow: 0 28px 80px rgba(255, 122, 24, 0.22);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --container: 1160px;
  --transition: 220ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 179, 71, 0.28), transparent 28%),
    radial-gradient(circle at 88% 12%, rgba(255, 90, 61, 0.08), transparent 18%),
    linear-gradient(180deg, #ffffff 0%, #fffdfa 36%, #ffffff 100%);
}

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

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

p,
li {
  color: var(--muted);
  line-height: 1.65;
}

.site-shell {
  position: relative;
  overflow: clip;
}

.site-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(17, 17, 17, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 17, 17, 0.03) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.42), transparent 35%);
  pointer-events: none;
  z-index: 0;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.section {
  padding: 104px 0;
}

.section-soft {
  background: linear-gradient(180deg, rgba(255, 248, 243, 0.72), rgba(255, 255, 255, 0));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(17, 17, 17, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 82px;
}

.brand {
  display: inline-flex;
  align-items: center;
  width: clamp(148px, 15vw, 196px);
  flex-shrink: 0;
}

.site-nav,
.header-actions,
.hero-actions,
.hero-metrics,
.footer-actions,
.preview-toolbar,
.api-call,
.response-line {
  display: flex;
  align-items: center;
}

.site-nav {
  gap: 22px;
  font-size: 0.96rem;
  color: rgba(17, 17, 17, 0.72);
}

.site-nav a,
.nav-link {
  transition: color var(--transition);
}

.site-nav a:hover,
.nav-link:hover {
  color: var(--text);
}

.header-actions {
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 600;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    background-color var(--transition),
    border-color var(--transition);
}

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

.button-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--orange), var(--coral));
  box-shadow: 0 14px 36px rgba(255, 122, 24, 0.28);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(17, 17, 17, 0.08);
  box-shadow: 0 10px 24px rgba(17, 17, 17, 0.06);
}

.hero {
  padding-top: 72px;
  padding-bottom: 88px;
}

.hero-grid,
.solution-grid,
.footer-grid {
  display: grid;
  gap: 48px;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
}

.eyebrow,
.section-kicker,
.metric-card strong,
.step-number {
  letter-spacing: 0.02em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 122, 24, 0.12);
  box-shadow: 0 10px 24px rgba(17, 17, 17, 0.05);
  color: rgba(17, 17, 17, 0.8);
  font-size: 0.94rem;
  font-weight: 600;
}

.eyebrow-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--yellow), var(--coral));
  box-shadow: 0 0 0 6px rgba(255, 122, 24, 0.12);
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--text);
  line-height: 1.02;
}

h1 {
  margin-top: 24px;
  font-size: clamp(3.5rem, 8vw, 6.3rem);
  max-width: 10.5ch;
}

.hero-subheadline {
  margin: 18px 0 0;
  font-size: clamp(1.25rem, 3vw, 1.72rem);
  font-weight: 600;
  color: rgba(17, 17, 17, 0.86);
}

.hero-description {
  max-width: 60ch;
  margin: 20px 0 0;
  font-size: 1.05rem;
}

.hero-note {
  margin: 16px 0 0;
  font-size: 0.95rem;
  color: rgba(17, 17, 17, 0.62);
}

.hero-actions {
  gap: 14px;
  margin-top: 32px;
}

.hero-metrics {
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.metric-card,
.problem-card,
.step-card,
.feature-card,
.use-case-card,
.formula-card,
.illustration-card,
.preview-card,
.response-card {
  border: 1px solid var(--line);
  background: var(--surface);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
}

.metric-card {
  gap: 4px;
  flex-direction: column;
  align-items: flex-start;
  min-width: 154px;
  padding: 18px 18px 16px;
  border-radius: var(--radius-md);
}

.metric-card strong {
  font-size: 1.05rem;
}

.metric-card span {
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-panel {
  position: relative;
}

.floating-badge {
  position: absolute;
  top: -54px;
  right: 28px;
  width: clamp(90px, 11vw, 126px);
  padding: 10px;
  border-radius: 30px;
  background: rgba(255, 248, 243, 0.92);
  border: 1px solid rgba(255, 122, 24, 0.16);
  box-shadow: var(--shadow-glow);
}

.runtime-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  padding: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 248, 243, 0.9)),
    linear-gradient(120deg, rgba(255, 179, 71, 0.22), rgba(255, 90, 61, 0.06));
  box-shadow: 0 34px 76px rgba(17, 17, 17, 0.12);
}

.runtime-card::after {
  content: "";
  position: absolute;
  inset: auto -18% -40% auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 122, 24, 0.22), transparent 68%);
  pointer-events: none;
}

.preview-toolbar {
  justify-content: space-between;
  margin-bottom: 18px;
}

.toolbar-dots {
  display: inline-flex;
  gap: 8px;
}

.toolbar-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(17, 17, 17, 0.14);
}

.toolbar-dots span:first-child {
  background: #ff5f57;
}

.toolbar-dots span:nth-child(2) {
  background: #febc2e;
}

.toolbar-dots span:nth-child(3) {
  background: #28c840;
}

.toolbar-label,
.api-path,
.trace-badge {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.toolbar-label {
  color: rgba(17, 17, 17, 0.6);
  font-size: 0.86rem;
}

.code-block,
.response-card pre {
  margin: 0;
  overflow-x: auto;
}

.code-block {
  padding: 18px;
  border-radius: 22px;
  background: #111111;
  color: rgba(255, 255, 255, 0.9);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.code-block pre,
.response-card pre {
  white-space: pre-wrap;
  font-size: 0.9rem;
  line-height: 1.55;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.code-key {
  color: #ffb347;
}

.api-call {
  gap: 12px;
  margin-top: 18px;
}

.api-chip {
  padding: 8px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(255, 122, 24, 0.14), rgba(255, 90, 61, 0.12));
  color: #cc4c0f;
  font-weight: 700;
  font-size: 0.83rem;
}

.api-path {
  color: rgba(17, 17, 17, 0.76);
  font-size: 0.88rem;
}

.response-card {
  margin-top: 16px;
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.82);
}

.response-line {
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.status-badge,
.trace-badge {
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
}

.status-badge {
  background: rgba(40, 200, 64, 0.14);
  color: #157228;
  font-weight: 700;
}

.trace-badge {
  background: rgba(17, 17, 17, 0.06);
  color: rgba(17, 17, 17, 0.68);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 42px;
}

.section-kicker {
  margin: 0 0 16px;
  font-weight: 700;
  font-size: 0.88rem;
  text-transform: uppercase;
  color: #cc4c0f;
}

h2 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  max-width: 13ch;
}

.section-heading h2 + p,
.solution-copy p,
.footer-grid p {
  margin-top: 18px;
}

.problem-grid,
.steps-grid,
.feature-grid,
.use-case-grid {
  display: grid;
  gap: 18px;
}

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

.problem-card,
.step-card,
.feature-card,
.use-case-card {
  padding: 28px;
  border-radius: var(--radius-lg);
}

.problem-card h3,
.step-card h3,
.feature-card h3,
.use-case-card h3 {
  font-size: 1.28rem;
}

.problem-card p,
.step-card p,
.feature-card p,
.use-case-card p {
  margin-top: 12px;
}

.solution-grid {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  align-items: center;
}

.formula-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
  padding: 22px;
  border-radius: var(--radius-lg);
}

.formula-pill,
.formula-result {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 700;
}

.formula-pill {
  background: rgba(17, 17, 17, 0.04);
}

.formula-result {
  background: linear-gradient(135deg, rgba(255, 122, 24, 0.16), rgba(255, 90, 61, 0.12));
  color: #bf4410;
}

.formula-plus,
.formula-arrow {
  color: rgba(17, 17, 17, 0.42);
  font-size: 1.2rem;
  font-weight: 700;
}

.solution-list {
  margin: 24px 0 0;
  padding-left: 18px;
}

.solution-list li + li {
  margin-top: 10px;
}

.illustration-card {
  position: relative;
  padding: clamp(22px, 4vw, 40px);
  border-radius: 34px;
  background:
    linear-gradient(180deg, rgba(255, 248, 243, 0.98), rgba(255, 255, 255, 0.92)),
    linear-gradient(135deg, rgba(255, 179, 71, 0.18), rgba(255, 90, 61, 0.06));
  box-shadow: var(--shadow-soft);
}

.illustration-card::before {
  content: "";
  position: absolute;
  inset: auto 24px 22px auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 122, 24, 0.14), transparent 70%);
}

.illustration-card picture,
.illustration-card img {
  position: relative;
  z-index: 1;
}

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

.step-number {
  display: inline-block;
  margin-bottom: 18px;
  color: #bf4410;
  font-weight: 700;
  font-size: 0.92rem;
}

.feature-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

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

.footer-cta {
  padding-top: 72px;
  padding-bottom: 96px;
}

.footer-grid {
  grid-template-columns: minmax(0, 1.1fr) auto;
  align-items: center;
  padding: clamp(28px, 5vw, 48px);
  border-radius: 34px;
  border: 1px solid rgba(255, 122, 24, 0.14);
  background:
    linear-gradient(135deg, rgba(255, 248, 243, 0.96), rgba(255, 255, 255, 0.92)),
    linear-gradient(135deg, rgba(255, 179, 71, 0.18), rgba(255, 90, 61, 0.08));
  box-shadow: var(--shadow-glow);
}

.footer-actions {
  gap: 14px;
  justify-content: flex-end;
}

.contact-note {
  margin-bottom: 0;
}

.contact-note a {
  color: #bf4410;
  font-weight: 600;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 600ms ease,
    transform 600ms ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .button {
    transition: none;
  }
}

@media (max-width: 1120px) {
  .feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (max-width: 920px) {
  .site-nav {
    display: none;
  }

  .hero-grid,
  .solution-grid,
  .footer-grid,
  .problem-grid,
  .use-case-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 48px;
  }

  .hero-panel {
    margin-top: 14px;
  }

  .floating-badge {
    top: -34px;
    right: 16px;
  }

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

@media (max-width: 720px) {
  .section {
    padding: 80px 0;
  }

  .header-inner {
    min-height: 74px;
  }

  .header-actions {
    gap: 10px;
  }

  .nav-link {
    display: none;
  }

  .button {
    min-height: 44px;
    padding: 0 18px;
  }

  h1 {
    max-width: none;
  }

  .hero-actions,
  .footer-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-metrics,
  .feature-grid,
  .steps-grid {
    grid-template-columns: 1fr;
  }

  .formula-card {
    align-items: flex-start;
  }

  .formula-arrow {
    width: 100%;
    margin: -2px 0 2px;
  }

  .footer-grid {
    gap: 28px;
  }
}