/* ============================================================
   embedkombinat — shared styles (nav, theme, buttons, tables,
   mobile menu). Page-specific styles stay inline in each page.
   ============================================================ */

/* ---- LIGHT MODE (default) ---- */
:root {
  --bg: #f4f1eb;
  --bg-card: #faf8f4;
  --text: #2a2520;
  --text-muted: #7a7168;
  --accent: #c05d3b;
  --accent-light: #e8a88e;
  --accent-hover: #a84e30;
  --green: #5a8a6a;
  --terminal-bg: #1e1e1e;
  --terminal-text: #d4d4d4;
  --terminal-green: #6bdf7a;
  --terminal-dim: #666;
  --terminal-bar: #2d2d2d;
  --border: #ddd5c8;
  --cta-shadow: rgba(192,93,59,0.25);
  --hero-glow-1: rgba(192,93,59,0.06);
  --hero-glow-2: rgba(90,122,154,0.06);
  --cta-text: #fff;
}

/* ---- DARK MODE (system preference) ---- */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161413;
    --bg-card: #1e1c1a;
    --text: #e8e2da;
    --text-muted: #9a9189;
    --accent: #e07a55;
    --accent-light: #c4715a;
    --accent-hover: #f09070;
    --green: #7cc08a;
    --terminal-bg: #0e0e0e;
    --terminal-text: #d4d4d4;
    --terminal-green: #6bdf7a;
    --terminal-dim: #666;
    --terminal-bar: #1a1a1a;
    --border: #2e2a26;
    --cta-shadow: rgba(224,122,85,0.3);
    --hero-glow-1: rgba(224,122,85,0.08);
    --hero-glow-2: rgba(90,122,154,0.06);
    --cta-text: #1c0e08;
  }
}

/* ---- DARK MODE (manual toggle overrides system) ---- */
[data-theme="dark"] {
  --bg: #161413;
  --bg-card: #1e1c1a;
  --text: #e8e2da;
  --text-muted: #9a9189;
  --accent: #e07a55;
  --accent-light: #c4715a;
  --accent-hover: #f09070;
  --green: #7cc08a;
  --terminal-bg: #0e0e0e;
  --terminal-text: #d4d4d4;
  --terminal-green: #6bdf7a;
  --terminal-dim: #666;
  --terminal-bar: #1a1a1a;
  --border: #2e2a26;
  --cta-shadow: rgba(224,122,85,0.3);
  --hero-glow-1: rgba(224,122,85,0.08);
  --hero-glow-2: rgba(90,122,154,0.06);
  --cta-text: #1c0e08;
}
[data-theme="light"] {
  --bg: #f4f1eb;
  --bg-card: #faf8f4;
  --text: #2a2520;
  --text-muted: #7a7168;
  --accent: #c05d3b;
  --accent-light: #e8a88e;
  --accent-hover: #a84e30;
  --green: #5a8a6a;
  --terminal-bg: #1e1e1e;
  --terminal-text: #d4d4d4;
  --terminal-green: #6bdf7a;
  --terminal-dim: #666;
  --terminal-bar: #2d2d2d;
  --border: #ddd5c8;
  --cta-shadow: rgba(192,93,59,0.25);
  --hero-glow-1: rgba(192,93,59,0.06);
  --hero-glow-2: rgba(90,122,154,0.06);
  --cta-text: #fff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Source Serif 4', Georgia, serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s, color 0.3s;
}

/* ---- NAV ---- */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem; height: 56px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
}
.nav-left { display: flex; align-items: center; gap: 1rem; }
.nav-back {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem; text-decoration: none;
  color: var(--text-muted); letter-spacing: 0.04em;
  text-transform: uppercase; transition: color 0.2s;
  display: flex; align-items: center; gap: 0.3rem;
  flex-shrink: 0;
}
.nav-back:hover { color: var(--accent); }
nav .logo {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600; font-size: 0.95rem;
  letter-spacing: -0.02em; color: var(--text);
  text-decoration: none;
}
nav .logo span { color: var(--accent); }
nav .nav-links { display: flex; gap: 1.2rem; align-items: center; }
nav .nav-links a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem; text-decoration: none;
  color: var(--text-muted); letter-spacing: 0.04em;
  text-transform: uppercase; transition: color 0.2s;
}
nav .nav-links a.active { color: var(--text); }
nav .nav-links a:hover { color: var(--accent); }
nav .nav-links .nav-pill {
  display: flex; align-items: center; gap: 0.4rem;
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--border); border-radius: 6px;
  transition: all 0.2s;
}
nav .nav-links .nav-pill:hover { border-color: var(--accent); color: var(--accent); }

/* ---- THEME TOGGLE ---- */
.theme-toggle {
  background: none; border: 1px solid var(--border);
  border-radius: 6px; cursor: pointer;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); transition: all 0.2s;
  flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }

/* ---- CTA BUTTON ---- */
.cta-btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem; font-weight: 500;
  padding: 0.7rem 1.6rem; background: var(--accent); color: var(--cta-text);
  border: none; border-radius: 8px; text-decoration: none;
  cursor: pointer; transition: all 0.2s; letter-spacing: 0.01em;
}
.cta-btn:hover {
  background: var(--accent-hover); transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--cta-shadow);
}
.cta-btn svg { flex-shrink: 0; }

/* ---- DIVIDER ---- */
.divider { max-width: 860px; margin: 0 auto; border: none; border-top: 1px solid var(--border); }

/* ---- HW TABLE (base; pages add their own column accents) ---- */
.hw-table {
  width: 100%; border-collapse: collapse; margin-top: 1.5rem;
  font-family: 'JetBrains Mono', monospace; font-size: 0.8rem;
}
.hw-table th {
  text-align: left; padding: 0.6rem 1rem;
  font-weight: 600; font-size: 0.68rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--text-muted); border-bottom: 2px solid var(--border);
}
.hw-table td {
  padding: 0.7rem 1rem; border-bottom: 1px solid var(--border); color: var(--text);
}
.hw-table tr:last-child td { border-bottom: none; }

/* ---- PIXEL BLOCK ---- */
.pixel-block { shape-rendering: crispEdges; }

/* ---- ANIMATIONS ---- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- MOBILE MENU TOGGLE ---- */
.menu-toggle {
  display: none; width: 32px; height: 32px;
  position: relative; cursor: pointer;
  background: none; border: 1px solid var(--border);
  border-radius: 6px; transition: border-color 0.2s;
  flex-shrink: 0;
}
.menu-toggle:hover { border-color: var(--accent); }
.menu-toggle span {
  position: absolute; width: 13px; height: 2px;
  background: var(--text-muted); border-radius: 1px;
  top: 50%; margin-top: -1px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.menu-toggle .slash-1 { transform: rotate(-60deg); left: 4px; }
.menu-toggle .slash-2 { transform: rotate(-60deg); left: 14px; }
.menu-toggle.active .slash-1 {
  transform: rotate(-45deg); left: 9px; background: var(--accent);
}
.menu-toggle.active .slash-2 {
  transform: rotate(45deg); left: 9px; background: var(--accent);
}
.menu-toggle.active { border-color: var(--accent); }

/* ---- MOBILE DROPDOWN ---- */
.mobile-menu {
  position: fixed; top: 56px; left: 0; right: 0;
  background: color-mix(in srgb, var(--bg) 95%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 0 1.5rem; max-height: 0; overflow: hidden;
  z-index: 99;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              padding 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.mobile-menu.open { padding: 0.8rem 1.5rem 1rem; max-height: 200px; }
.mobile-menu a {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem; color: var(--text-muted);
  text-decoration: none; padding: 0.55rem 0;
  transition: color 0.2s; letter-spacing: 0.02em;
}
.mobile-menu a::before {
  content: '// '; color: var(--accent); opacity: 0.5;
}
.mobile-menu a:hover, .mobile-menu a:active { color: var(--accent); }

/* ---- SHARED RESPONSIVE ---- */
@media (max-width: 768px) {
  nav { padding: 0 1rem; }
  nav .nav-links a.nav-text { display: none; }
  .menu-toggle { display: block; }
}

/* ---- REDUCED MOTION ---- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
}