:root {
  --bg: #0f0f12;
  --panel: #1a1a20;
  --panel-light: #2a2a32;
  --text: #f5f2ec;
  --text-secondary: #b8b3ac;
  --muted: #8a857c;
  --accent: #ff3333;
  --accent-warm: #ff7a4d;
  --font-heading: 'Oswald', sans-serif;
  --font-body: 'Work Sans', sans-serif;
  --font-mono: 'Space Mono', 'Courier New', monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: radial-gradient(circle at 50% 0%, #1e1e24 0%, #0a0a0c 80%);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
}

.page-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: linear-gradient(180deg, #33333d 0%, #1f1f25 100%);
  border-bottom: 2px solid #0c0c0f;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
  padding: 0.9rem 2rem;
}

.page-header__inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.page-header__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.page-header__logo-img {
  height: 2.4rem;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.6));
}

.page-header__links {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.page-header__links a {
  display: inline-flex;
  align-items: center;
  border-radius: 0.25rem;
  padding: 0.55rem 0.85rem;
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: #c9c4bc;
  text-decoration: none;
  background: transparent;
}

.page-header__links a:hover {
  color: #f5f2ec;
}

.page-header__links a.active {
  color: #f5f2ec;
  background: linear-gradient(180deg, #4e4e58 0%, #2f2f36 100%);
  box-shadow:
    0 2px 0 #111,
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.page-main {
  flex: 1 0 auto;
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 2rem;
  width: 100%;
}

.page-card {
  background: linear-gradient(180deg, #232329 0%, #17171b 100%);
  border: 1px solid #101013;
  border-radius: 0.5rem;
  padding: 2.25rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

h1,
h2,
h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
}

h1 {
  font-size: 2rem;
  color: #f2efe9;
  margin: 0 0 1.5rem;
}

h2 {
  font-size: 1.3rem;
  color: #ff7a4d;
  margin: 1.75rem 0 0.75rem;
}

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

p {
  margin: 0 0 1rem;
  color: var(--text-secondary);
}

ul,
ol {
  padding-left: 1.25rem;
  margin: 0 0 1rem;
}

li {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

a {
  color: #ff7a4d;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.page-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  border-top: 1px solid #15151a;
  background: #131318;
  padding: 1rem 2rem;
  text-align: center;
  font-size: 0.65rem;
  color: #6b665e;
  letter-spacing: 0.08em;
}

.page-footer__links {
  display: flex;
  gap: 0.75rem;
}

.page-footer a {
  color: #6b665e;
  text-decoration: none;
}

.page-footer a:hover {
  color: #ff7a4d;
  text-decoration: underline;
}

.last-updated {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid #3a3a42;
  border-radius: 0.25rem;
  font-family: var(--font-mono);
}

@media (max-width: 600px) {
  .page-header__inner {
    flex-direction: column;
    align-items: stretch;
  }

  .page-header__links {
    justify-content: center;
  }

  .page-main {
    padding: 2rem 1rem;
  }

  .page-card {
    padding: 1.5rem;
  }

  h1 {
    font-size: 1.6rem;
  }

  .page-footer {
    flex-direction: column;
    gap: 0.5rem;
  }
}