:root {
  --base: #0058bc;
  --navy: #031636;
  --accent: #000f22;
  --surface: #f7fafc;
  --surface-low: #f1f4f6;
  --outline: #e2e8f0;
  --text: #181c1e;
  --muted: #44474e;
  --stable: #16a34a;
  --caution: #eab308;
  --critical: #ba1a1a;
  --shadow: 0 10px 30px rgba(3, 22, 54, 0.08);
  --radius: 16px;
  --max: 920px;
  --font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(0, 88, 188, 0.12), transparent 60%),
    radial-gradient(900px 400px at 100% 0%, rgba(3, 22, 54, 0.08), transparent 55%),
    var(--surface);
  line-height: 1.55;
}

a {
  color: var(--base);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(247, 250, 252, 0.88);
  border-bottom: 1px solid var(--outline);
}

.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--base), #0a3d7a);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 0.95rem;
  box-shadow: var(--shadow);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  font-size: 0.92rem;
  font-weight: 600;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--base);
}

.hero {
  padding: 3.5rem 0 2.5rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(0, 88, 188, 0.1);
  color: var(--base);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  margin: 0.9rem 0 0.75rem;
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.15;
  color: var(--navy);
}

.lead {
  margin: 0;
  max-width: 42rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.75rem 1.25rem;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--base);
  color: #fff;
  box-shadow: 0 8px 20px rgba(0, 88, 188, 0.25);
}

.btn-primary:hover {
  background: #0049a0;
  color: #fff;
}

.btn-secondary {
  background: #fff;
  color: var(--navy);
  border-color: var(--outline);
}

.btn-secondary:hover {
  border-color: var(--base);
  color: var(--base);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border-color: transparent;
}

.card {
  background: #fff;
  border: 1px solid var(--outline);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.35rem;
}

.card + .card {
  margin-top: 1rem;
}

.section {
  padding: 1rem 0 3rem;
}

.section h2 {
  margin: 0 0 1rem;
  color: var(--navy);
  font-size: 1.45rem;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.85rem;
  margin: 1.25rem 0;
}

.meta-item {
  background: var(--surface-low);
  border-radius: 12px;
  padding: 0.9rem 1rem;
}

.meta-item dt {
  margin: 0;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-weight: 700;
}

.meta-item dd {
  margin: 0.35rem 0 0;
  font-weight: 800;
  color: var(--navy);
  word-break: break-word;
}

.disclaimer {
  border-left: 4px solid var(--caution);
  background: #fffbeb;
  padding: 0.9rem 1rem;
  border-radius: 0 12px 12px 0;
  color: #713f12;
  font-size: 0.92rem;
}

.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 0;
}

.steps li {
  counter-increment: step;
  position: relative;
  padding: 1rem 1rem 1rem 3.5rem;
  margin-bottom: 0.75rem;
  background: #fff;
  border: 1px solid var(--outline);
  border-radius: 14px;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 1rem;
  top: 1rem;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--base);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  font-weight: 800;
}

.shot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.85rem;
  margin-top: 1rem;
}

.shot {
  aspect-ratio: 9 / 16;
  border-radius: 14px;
  border: 1px dashed #94a3b8;
  background: linear-gradient(180deg, #eef4fb, #f8fafc);
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 1rem;
}

.ref-box {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(1.2rem, 3vw, 1.7rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--navy);
  background: var(--surface-low);
  border: 1px solid var(--outline);
  border-radius: 12px;
  padding: 1rem 1.15rem;
  word-break: break-all;
}

.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--outline);
  background: #fff;
  padding: 2rem 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
}

.site-footer strong {
  display: block;
  color: var(--navy);
  margin-bottom: 0.35rem;
}

.legal {
  max-width: 48rem;
}

.legal h1 {
  font-size: 2rem;
}

.legal h2 {
  margin-top: 1.75rem;
  font-size: 1.15rem;
}

.legal p,
.legal li {
  color: var(--muted);
}

.muted {
  color: var(--muted);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 640px) {
  .nav {
    justify-content: flex-end;
  }

  .hero {
    padding-top: 2.25rem;
  }
}