@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Space+Grotesk:wght@300;400;500;600;700&family=Space+Mono:ital,wght@0,400;0,700;1,400&display=swap');

:root {
  --black:    #0D1520;
  --surface:  #121E2C;
  --surface2: #172638;
  --blue:     #4E7FFF;
  --steel:    #7A9CC4;
  --text:     #C8D5EC;
  --muted:    #48607E;
  --border:   rgba(78,127,255,0.1);
  --sidebar-w: 220px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Space Grotesk', sans-serif;
  background: var(--black);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* ── HEADER ──────────────────────────────────────────────────── */
.site-header {
  background: var(--black);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 200;
  flex-shrink: 0;
}

.sidebar-toggle {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 6px;
  border-radius: 3px;
  transition: color 0.15s;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.sidebar-toggle:hover { color: var(--text); }

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.logo-icon {
  width: 32px;
  height: auto;
  flex-shrink: 0;
  display: block;
  overflow: visible;
}
.logo-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.35rem;
  letter-spacing: 0.06em;
  line-height: 1;
}
.logo-ops { color: var(--muted); }
.logo-doc { color: var(--blue); }
.logo-sub {
  font-family: 'Space Mono', monospace;
  font-size: 0.5rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 3px;
  opacity: 0.7;
}
.header-spacer { flex: 1; }
.header-badge {
  font-family: 'Space Mono', monospace;
  font-size: 0.62rem;
  color: var(--blue);
  border: 1px solid var(--blue);
  padding: 5px 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}
.header-badge:hover { background: var(--blue); color: var(--black); }

/* ── LAYOUT ──────────────────────────────────────────────────── */
.site-body { display: flex; flex: 1; }

/* ── SIDEBAR ─────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  flex-shrink: 0;
  overflow-x: hidden;
  overflow-y: auto;
  transition: width 0.25s ease;
  position: sticky;
  top: 60px;
  height: calc(100vh - 60px);
}
.sidebar.collapsed { width: 0; }

.sidebar-section { padding: 20px 0 8px; }
.sidebar-label {
  display: block;
  font-family: 'Space Mono', monospace;
  font-size: 0.52rem;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0 20px 10px;
  opacity: 0.5;
}
.sidebar-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 16px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  text-decoration: none;
  color: var(--muted);
  font-family: 'Space Mono', monospace;
  font-size: 0.67rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-left: 2px solid transparent;
  transition: all 0.15s;
  white-space: nowrap;
}
.nav-item:hover {
  color: var(--text);
  border-left-color: rgba(78,127,255,0.35);
  background: rgba(78,127,255,0.04);
}
.nav-item.active {
  color: var(--blue);
  border-left-color: var(--blue);
  background: rgba(78,127,255,0.06);
}
.nav-icon { font-size: 0.85rem; width: 16px; text-align: center; flex-shrink: 0; }

/* ── PAGE MAIN ───────────────────────────────────────────────── */
.page-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.page-hero {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 44px 52px;
}
.page-hero h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3rem;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 0.95;
  letter-spacing: 0.03em;
}
.page-hero p {
  font-family: 'Space Grotesk', sans-serif;
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 560px;
  line-height: 1.65;
  font-weight: 300;
}

.page-content { padding: 44px 52px; flex: 1; }

/* ── FOOTER ──────────────────────────────────────────────────── */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  color: var(--muted);
  text-align: center;
  padding: 16px 24px;
  font-family: 'Space Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  flex-shrink: 0;
}
.site-footer strong { color: var(--steel); font-weight: 400; }

/* ── CONTENT COMPONENTS ──────────────────────────────────────── */
.content-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 28px 32px;
}

.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.2rem;
  color: var(--text);
  letter-spacing: 0.04em;
  margin-bottom: 6px;
  line-height: 1;
}
.section-sub {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 32px;
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.6;
  font-weight: 300;
}

/* ── BUTTONS ─────────────────────────────────────────────────── */
.btn-primary {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--blue);
  color: #fff;
  padding: 13px 26px;
  text-decoration: none;
  font-weight: 700;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 7px 100%, 0 calc(100% - 7px));
}
.btn-primary:hover {
  background: var(--text);
  color: var(--black);
  transform: translate(-2px, -2px);
  box-shadow: 3px 3px 0 var(--blue);
}
.btn-primary:active { transform: translate(0,0); box-shadow: none; }

.btn-ghost {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: transparent;
  color: var(--muted);
  padding: 13px 26px;
  text-decoration: none;
  transition: color 0.15s, border-color 0.15s;
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-ghost:hover { color: var(--text); border-color: rgba(255,255,255,0.15); }

/* ── MOBILE ──────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 60px; left: 0;
    height: calc(100vh - 60px);
    z-index: 150;
    box-shadow: 4px 0 24px rgba(0,0,0,0.7);
  }
  .sidebar.collapsed { width: 0; box-shadow: none; }
  .page-hero { padding: 28px 20px; }
  .page-hero h1 { font-size: 2.2rem; }
  .page-content { padding: 24px 20px; }
}