:root {
  --bg: oklch(0.98 0.01 92);
  --surface: oklch(0.995 0.004 95);
  --surface-strong: oklch(0.23 0.03 245);
  --surface-soft: oklch(0.93 0.015 86);
  --text: oklch(0.25 0.02 250);
  --text-soft: oklch(0.47 0.015 245);
  --line: oklch(0.86 0.01 90);
  --brand: oklch(0.63 0.15 63);
  --brand-deep: oklch(0.47 0.11 58);
  --accent: oklch(0.55 0.07 220);
  --shadow: 0 24px 60px rgba(24, 35, 55, 0.12);
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --radius-sm: 14px;
  --radius-md: 22px;
  --radius-lg: 32px;
  --max-width: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at top left, rgba(255, 196, 115, 0.24), transparent 24%),
    radial-gradient(circle at 88% 14%, rgba(90, 137, 208, 0.16), transparent 28%),
    linear-gradient(180deg, #f8f4eb 0%, #f6f7fb 34%, #eef2f8 100%);
  color: var(--text);
  font-family: "Noto Sans SC", sans-serif;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

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

.site-shell::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0)),
    linear-gradient(90deg, rgba(123, 146, 184, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(123, 146, 184, 0.04) 1px, transparent 1px);
  background-size: auto, 42px 42px, 42px 42px;
}

.site-header,
.hero,
.band,
.section,
.contact,
.site-footer {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding: 24px 0 0;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark__sun {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.9), transparent 24%),
    linear-gradient(145deg, #ffcf82 0%, #d9822b 100%);
  box-shadow:
    0 0 0 9px rgba(255, 208, 142, 0.15),
    0 14px 24px rgba(217, 130, 43, 0.28);
}

.brand-mark__label,
.eyebrow {
  margin: 0 0 6px;
  color: var(--brand-deep);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.brand-mark h1 {
  margin: 0;
  font-size: clamp(1rem, 0.75rem + 0.9vw, 1.4rem);
  font-weight: 700;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 18px;
}

.site-nav a {
  color: var(--text-soft);
  font-size: 14px;
  transition: color 180ms ease;
}

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

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: clamp(28px, 4vw, 56px);
  padding: clamp(56px, 8vw, 110px) 0 clamp(28px, 4vw, 54px);
  align-items: center;
}

.hero__glow {
  position: absolute;
  z-index: -1;
  border-radius: 999px;
  filter: blur(14px);
}

.hero__glow--left {
  inset: 18% auto auto -6%;
  width: 220px;
  height: 220px;
  background: rgba(255, 202, 120, 0.22);
}

.hero__glow--right {
  inset: auto -4% 6% auto;
  width: 260px;
  height: 260px;
  background: rgba(84, 137, 212, 0.14);
}

.hero__content h2,
.section-heading h3,
.contact__copy h3 {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(2.3rem, 1.5rem + 2.6vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.hero__summary,
.section-heading,
.capability-card p,
.scenario-card p,
.timeline p,
.contact__copy p,
.status-card p,
.signal-grid p,
.band__item p {
  color: var(--text-soft);
  line-height: 1.9;
}

.hero__summary {
  max-width: 60ch;
  margin: 24px 0 0;
  font-size: 16px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button--primary {
  background: linear-gradient(135deg, #244369 0%, #345f92 100%);
  box-shadow: 0 18px 40px rgba(36, 67, 105, 0.22);
  color: #f7f8fb;
}

.button--secondary {
  border: 1px solid rgba(53, 85, 124, 0.15);
  background: rgba(255, 255, 255, 0.7);
  color: var(--text);
}

.hero__panel {
  padding: 24px;
  border: 1px solid rgba(51, 78, 111, 0.08);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.68);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.status-card {
  padding: 22px;
  border-radius: var(--radius-md);
  background:
    linear-gradient(140deg, rgba(247, 214, 164, 0.34), rgba(255, 255, 255, 0.56)),
    var(--surface);
}

.status-card__title,
.signal-grid span,
.capability-card__index,
.timeline span,
.contact__panel span {
  display: inline-block;
  color: var(--brand-deep);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.status-card strong,
.signal-grid strong,
.capability-card h4,
.scenario-card h4,
.timeline h4,
.contact__panel strong {
  display: block;
  margin-top: 12px;
  font-size: 1.1rem;
  line-height: 1.45;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.signal-grid article,
.capability-card,
.scenario-card,
.timeline article,
.contact__panel {
  border: 1px solid rgba(56, 85, 119, 0.08);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.78);
}

.signal-grid article {
  padding: 18px;
}

.band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 12px;
}

.band__item {
  padding: 22px;
  border-radius: var(--radius-md);
  background: rgba(244, 247, 252, 0.9);
  border: 1px solid rgba(68, 101, 143, 0.08);
}

.band__item span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 205, 135, 0.8), rgba(244, 164, 77, 0.9));
  color: #6f3c05;
  font-size: 13px;
  font-weight: 800;
}

.band__item p {
  margin: 14px 0 0;
}

.section,
.contact {
  padding: clamp(64px, 8vw, 104px) 0 0;
}

.section-heading {
  max-width: 72ch;
  margin-bottom: 28px;
}

.section-heading h3 {
  font-size: clamp(1.8rem, 1.2rem + 1.8vw, 3rem);
}

.capability-grid,
.scenario-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.capability-card,
.scenario-card {
  padding: 22px;
}

.capability-card__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 210, 148, 0.36);
  letter-spacing: 0;
}

.section--contrast {
  position: relative;
}

.section--contrast::before {
  content: "";
  position: absolute;
  inset: 36px 0 -18px;
  z-index: -1;
  border-radius: 40px;
  background:
    linear-gradient(135deg, rgba(32, 53, 83, 0.96), rgba(43, 68, 106, 0.92)),
    var(--surface-strong);
}

.section--contrast .eyebrow,
.section--contrast .section-heading h3,
.section--contrast .section-heading p,
.section--contrast .scenario-card h4,
.section--contrast .scenario-card p {
  color: #f4f7fb;
}

.section--contrast .eyebrow {
  color: #ffcc88;
}

.section--contrast .scenario-card {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.1);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.timeline article {
  padding: 22px;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 22px;
  padding-bottom: 80px;
}

.contact__panel {
  display: grid;
  gap: 16px;
  align-content: start;
  padding: 24px;
  background:
    radial-gradient(circle at top right, rgba(255, 205, 139, 0.28), transparent 38%),
    rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding: 0 0 28px;
  color: var(--text-soft);
  font-size: 14px;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--brand-deep);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 640ms ease, transform 640ms ease;
}

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

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

  .reveal,
  .button,
  .site-nav a {
    transition: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 1080px) {
  .hero,
  .contact,
  .timeline,
  .band {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 42px;
  }
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    justify-content: flex-start;
  }

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

  .hero__summary,
  .section-heading,
  .contact__copy p {
    font-size: 15px;
  }

  .site-footer {
    padding-bottom: 24px;
    font-size: 13px;
  }
}