@font-face {
  font-family: "Instrument Sans";
  src: url("assets/fonts/InstrumentSans-Regular.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "Instrument Serif";
  src: url("assets/fonts/InstrumentSerif-Regular.ttf") format("truetype");
  font-display: swap;
}

:root {
  --bg: #101b33;
  --bg-soft: #172544;
  --surface: rgba(244, 235, 221, 0.08);
  --surface-strong: #f4ebdd;
  --line: rgba(244, 235, 221, 0.16);
  --text: #f4ebdd;
  --text-muted: #c7c0b5;
  --ink: #15213c;
  --accent: #c85d41;
  --accent-soft: rgba(200, 93, 65, 0.16);
  --card-shadow: 0 28px 70px rgba(5, 9, 18, 0.28);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --container: min(1120px, calc(100vw - 32px));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Instrument Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(200, 93, 65, 0.2), transparent 28%),
    radial-gradient(circle at 85% 10%, rgba(119, 142, 182, 0.2), transparent 32%),
    linear-gradient(180deg, #0c1528 0%, #101b33 42%, #0d162a 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(244, 235, 221, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 235, 221, 0.035) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(180deg, transparent 0%, black 18%, black 82%, transparent 100%);
}

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

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

button,
summary {
  font: inherit;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -64px;
  z-index: 20;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--surface-strong);
  color: var(--ink);
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.page-shell {
  position: relative;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(12, 21, 40, 0.68);
  border-bottom: 1px solid rgba(244, 235, 221, 0.08);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
}

.brand {
  width: min(340px, 62vw);
}

.brand img,
.site-footer img {
  height: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--text-muted);
  transition: background-color 180ms ease, color 180ms ease;
}

.nav a:hover,
.nav a.is-active {
  background: rgba(244, 235, 221, 0.1);
  color: var(--text);
}

.nav-toggle {
  display: none;
  border: 1px solid rgba(244, 235, 221, 0.18);
  background: transparent;
  color: var(--text);
  padding: 10px 14px;
  border-radius: 999px;
}

.hero {
  padding: 54px 0 36px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 28px;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.info-card,
.timeline-card,
.source-link,
.faq-item,
.footer-grid,
.section-grid {
  position: relative;
}

.hero-copy {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(244, 235, 221, 0.02)),
    rgba(14, 24, 43, 0.82);
  box-shadow: var(--card-shadow);
}

.hero-copy::after {
  content: "";
  position: absolute;
  right: 24px;
  top: 24px;
  width: 110px;
  height: 110px;
  border-top: 1px solid rgba(244, 235, 221, 0.18);
  border-right: 1px solid rgba(244, 235, 221, 0.18);
  border-radius: 0 24px 0 0;
  opacity: 0.7;
}

.eyebrow,
.guide-kicker,
.card-index,
.timeline-number {
  margin: 0;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow,
.guide-kicker {
  font-size: 0.78rem;
  color: #e3a892;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  line-height: 0.96;
}

h1 {
  margin-top: 16px;
  font-size: clamp(3.4rem, 8vw, 6.6rem);
  max-width: 10ch;
}

h2 {
  font-size: clamp(2.1rem, 4.6vw, 3.7rem);
  max-width: 12ch;
}

h3 {
  font-size: clamp(1.45rem, 2vw, 1.85rem);
}

.hero-dek,
.body-copy p,
.info-card p,
.timeline-card p,
.source-link span,
.faq-item p,
.footer-copy,
.footer-note p {
  margin: 0;
  font-size: 1.03rem;
  line-height: 1.7;
  color: var(--text-muted);
}

.hero-dek {
  margin-top: 18px;
  max-width: 62ch;
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.98rem;
}

.button-primary {
  background: var(--surface-strong);
  color: var(--ink);
}

.button-secondary {
  background: transparent;
  color: var(--text);
  border-color: rgba(244, 235, 221, 0.2);
}

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

.disclaimer-banner {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  padding: 12px 16px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #f8d8cb;
}

.signal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(200, 93, 65, 0.16);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 30px 0 0;
}

.hero-stats div {
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(244, 235, 221, 0.04);
}

.hero-stats dt {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #d4b7ab;
}

.hero-stats dd {
  margin: 10px 0 0;
  font-size: 1.14rem;
  color: var(--text);
}

.hero-panel {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 20px;
}

.stamp-card,
.guide-sheet,
.info-card,
.timeline-card,
.source-link,
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--card-shadow);
}

.stamp-card {
  padding: 28px;
  background: linear-gradient(180deg, rgba(20, 33, 60, 0.88), rgba(16, 27, 51, 0.94));
}

.stamp-card img {
  width: min(100%, 290px);
  margin: 0 auto;
}

.guide-sheet {
  padding: 26px;
  background:
    linear-gradient(180deg, rgba(244, 235, 221, 0.96), rgba(236, 228, 214, 0.94)),
    var(--surface-strong);
  color: var(--ink);
}

.guide-sheet .guide-kicker {
  color: #7f4c38;
}

.step-preview {
  margin: 16px 0 0;
  padding-left: 20px;
  display: grid;
  gap: 14px;
  line-height: 1.6;
}

.section {
  padding: 34px 0;
}

.section-grid,
.sources-grid,
.faq-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.cards-grid,
.timeline {
  display: grid;
  gap: 18px;
}

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

.info-card,
.timeline-card,
.source-link,
.faq-item {
  padding: 26px;
  background: rgba(17, 29, 53, 0.84);
}

.card-index,
.timeline-number {
  font-size: 0.78rem;
  color: #d7a693;
}

.info-card h3,
.timeline-card h3,
.source-link strong {
  margin-top: 16px;
  display: block;
}

.info-card p:last-child,
.timeline-card p:last-child {
  margin-top: 14px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
  margin-bottom: 24px;
}

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

.timeline-card {
  min-height: 100%;
}

.timeline-number {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(244, 235, 221, 0.2);
}

.sources-copy p:last-child {
  margin-top: 18px;
}

.source-links {
  display: grid;
  gap: 16px;
}

.source-link {
  display: grid;
  gap: 10px;
  transition: transform 180ms ease, border-color 180ms ease;
}

.source-link:hover {
  transform: translateY(-2px);
  border-color: rgba(244, 235, 221, 0.34);
}

.source-link strong {
  font-size: 1.24rem;
  color: var(--text);
}

.faq-item {
  margin: 0;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  font-size: 1.08rem;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  flex: none;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(244, 235, 221, 0.08);
  color: #f6d0bf;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  margin-top: 14px;
}

.site-footer {
  padding: 18px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.74fr);
  gap: 28px;
  padding: 24px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: rgba(12, 21, 40, 0.88);
}

.footer-grid img {
  width: min(320px, 100%);
}

.footer-copy,
.footer-note p + p {
  margin-top: 16px;
}

.footer-note {
  color: var(--text-muted);
}

.footer-note a {
  color: #ffd2c3;
}

@media (max-width: 980px) {
  .hero-grid,
  .section-grid,
  .sources-grid,
  .faq-layout,
  .footer-grid,
  .cards-grid,
  .timeline,
  .hero-stats {
    grid-template-columns: 1fr;
  }

  .section-heading {
    display: grid;
  }
}

@media (max-width: 760px) {
  .topbar {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    grid-column: 1 / -1;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding-top: 8px;
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    border-radius: var(--radius-sm);
  }

  .hero {
    padding-top: 28px;
  }

  .hero-copy,
  .stamp-card,
  .guide-sheet,
  .info-card,
  .timeline-card,
  .source-link,
  .faq-item,
  .footer-grid {
    padding: 22px;
  }

  h1 {
    font-size: clamp(2.8rem, 13vw, 4.3rem);
  }

  h2 {
    max-width: none;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .disclaimer-banner {
    border-radius: var(--radius-sm);
    align-items: flex-start;
  }
}