:root {
  --navy: #0b1f3a;
  --navy-mid: #123056;
  --navy-deep: #071526;
  --blue: #1b4f8a;
  --accent: #2563eb;
  --gold: #c9a227;
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #152033;
  --muted: #5b6b7c;
  --border: #d7e2ee;
  --link: #1d4ed8;
  --ok: #0f766e;
  --danger: #b42318;
  --shadow: 0 10px 30px rgba(11, 31, 58, 0.08);
  --radius: 16px;
  --max: 1080px;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Plus Jakarta Sans", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16.5px;
}

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

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--navy);
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  background: var(--navy);
  color: #fff;
  padding: 8px 12px;
  border-radius: 8px;
  z-index: 1000;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--navy);
  color: #fff;
  box-shadow: 0 2px 12px rgba(7, 21, 38, 0.28);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  min-height: var(--header-h);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  object-fit: cover;
  background: #fff;
}

.brand-name {
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 1.15rem;
}

.brand-sub {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  color: #c5d4e8;
  letter-spacing: 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav a {
  color: #e8eef7;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 8px 12px;
  border-radius: 10px;
}

.nav a:hover,
.nav a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 11px;
  padding: 11px 16px;
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  font-family: inherit;
  text-decoration: none;
}

.btn-gold {
  background: var(--gold);
  color: var(--navy-deep);
}

.btn-gold:hover {
  filter: brightness(1.05);
  color: var(--navy-deep);
}

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

.btn-navy:hover {
  background: var(--navy-mid);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--navy);
  color: var(--navy);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  font-size: 1.2rem;
}

.hero {
  background: linear-gradient(160deg, var(--navy-deep) 0%, var(--navy) 55%, var(--blue) 100%);
  color: #fff;
  padding: 48px 20px 56px;
}

.hero-inner,
.wrap {
  max-width: var(--max);
  margin: 0 auto;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.hero p {
  margin: 0;
  max-width: 680px;
  color: #d7e3f4;
  font-size: 1.05rem;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.chip {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #fff;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.82rem;
  font-weight: 600;
}

.layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 28px;
  max-width: var(--max);
  margin: -28px auto 48px;
  padding: 0 20px;
  align-items: start;
}

.toc {
  position: sticky;
  top: calc(var(--header-h) + 16px);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 16px;
}

.toc h2 {
  margin: 0 0 10px;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.toc a {
  display: block;
  color: var(--text);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 7px 8px;
  border-radius: 8px;
}

.toc a:hover,
.toc a:focus {
  background: #eef3fa;
  color: var(--navy);
}

.content {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 28px 36px;
}

.content h2 {
  margin: 2.1rem 0 0.7rem;
  font-size: 1.28rem;
  letter-spacing: -0.02em;
  color: var(--navy);
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.content h2:first-child {
  margin-top: 0;
}

.content h3 {
  margin: 1.35rem 0 0.5rem;
  font-size: 1.02rem;
  color: var(--navy-mid);
}

.content p,
.content li {
  color: #2a384c;
}

.content ul {
  padding-left: 1.2rem;
}

.content li {
  margin: 0.35rem 0;
}

.note {
  background: #f3f7fc;
  border-left: 4px solid var(--accent);
  padding: 12px 14px;
  border-radius: 0 12px 12px 0;
  margin: 16px 0;
}

.warn {
  background: #fff7ed;
  border-left: 4px solid var(--gold);
}

.page-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.mini {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fff;
}

.mini h3 {
  margin: 0 0 6px;
  color: var(--navy);
}

label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 6px;
}

input,
textarea,
select {
  width: 100%;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 12px 13px;
  font: inherit;
  color: var(--text);
  background: #fff;
  margin-bottom: 14px;
}

input:focus,
textarea:focus {
  outline: 2px solid var(--accent);
  border-color: var(--accent);
}

.checkbox {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 8px 0 18px;
}

.checkbox input {
  width: auto;
  margin: 4px 0 0;
}

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

.site-footer {
  background: var(--navy-deep);
  color: #d5e0ee;
  padding: 36px 20px 24px;
  margin-top: 24px;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 28px;
}

.footer-brand {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.footer-brand img {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  background: #fff;
  object-fit: cover;
}

.footer-brand strong {
  color: #fff;
  font-size: 1.1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  color: #d5e0ee;
  text-decoration: none;
  font-weight: 600;
}

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

.legal-line {
  max-width: var(--max);
  margin: 24px auto 0;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.85rem;
  color: #9eb0c7;
}

.config-hint {
  font-size: 0.85rem;
  color: var(--muted);
  background: #fff8e6;
  border: 1px dashed #e3c56a;
  border-radius: 12px;
  padding: 12px 14px;
  margin-top: 10px;
}

.home-hero {
  padding: 64px 20px 48px;
}

.home-hero h1 {
  font-size: clamp(2rem, 5vw, 3.1rem);
}

.home-actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 8px 20px 56px;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
    margin-top: 20px;
  }

  .toc {
    position: static;
  }

  .footer-inner,
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav {
    display: none;
    position: absolute;
    left: 12px;
    right: 12px;
    top: calc(var(--header-h) + 4px);
    background: var(--navy-mid);
    border-radius: 14px;
    padding: 10px;
    flex-direction: column;
    align-items: stretch;
    box-shadow: var(--shadow);
  }

  .nav.open {
    display: flex;
  }

  .nav a,
  .nav .btn {
    width: 100%;
    justify-content: flex-start;
  }

  .content,
  .page-card {
    padding: 20px 16px 28px;
  }

  .site-header {
    position: sticky;
  }
}

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