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

/* ── Design tokens — light (default) ────────────────────────────────────── */
:root {
  /* Base — ice blue tinted background, white cards */
  --bg:           #edf2f9;
  --surface:      #ffffff;
  --surface2:     #e4ecf6;
  --surface-ink:  #0b1d38;
  --border:       #c4d6ee;
  --border-ink:   rgba(255, 255, 255, 0.1);

  /* Text */
  --text:         #0b1d38;
  --text-inv:     #e8f0fb;
  --dim:          #1e3a5f;
  --dim-inv:      #b8ceea;
  --muted:        #4d6b8a;
  --muted-inv:    #5a7aa0;
  --white:        #ffffff;

  /* Accent — vivid blue, clearly distinct from bg */
  --accent:       #1a6fd4;
  --accent-light: #2d84e8;
  --accent-bg:    rgba(26, 111, 212, 0.09);
  --accent-inv:   #60b4ff;

  /* Dashboard detail panel */
  --detail-bg:    rgba(228, 236, 246, 0.95);

  /* Dashboard CVE severity */
  --red:     #b91c1c;
  --orange:  #c2410c;
  --yellow:  #92400e;
  --green:   #15803d;
  --blue:    #1a6fd4;
  --purple:  #6d28d9;
}

/* ── Design tokens — dark ────────────────────────────────────────────────── */
[data-theme="dark"] {
  --bg:           #0a1628;
  --surface:      #122040;
  --surface2:     #1a2e52;
  --surface-ink:  #060e1c;
  --border:       #1e3358;
  --border-ink:   rgba(255, 255, 255, 0.08);

  --text:         #e4eefb;
  --text-inv:     #0b1d38;
  --dim:          #a8c0e0;
  --dim-inv:      #1e3a5f;
  --muted:        #5a7aa0;
  --muted-inv:    #1e3358;
  --white:        #e4eefb;

  --accent:       #60b4ff;
  --accent-light: #80c4ff;
  --accent-bg:    rgba(96, 180, 255, 0.1);
  --accent-inv:   #1a6fd4;

  --detail-bg:    rgba(18, 32, 64, 0.9);

  --red:     #f87171;
  --orange:  #fb923c;
  --yellow:  #fbbf24;
  --green:   #4ade80;
  --blue:    #60b4ff;
  --purple:  #c084fc;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', -apple-system, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background 0.25s ease, color 0.25s ease;
}

/* ── Shared site nav ─────────────────────────────────────────────────────── */

#site-nav {
  background: var(--surface-ink);
  border-bottom: 1px solid var(--border-ink);
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 200;
}

.snav-logo {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: -0.025em;
  color: var(--text-inv);
  text-decoration: none;
  border: 1px solid var(--accent-inv);
  padding: 2px 7px;
  display: inline-flex;
  align-items: center;
}
.snav-logo em { font-style: normal; color: var(--accent-inv); }
.snav-studios { font-weight: 300; color: var(--text-inv); }

[data-theme="dark"] .snav-logo { color: var(--text); border-color: var(--accent); }
[data-theme="dark"] .snav-logo em { color: var(--accent); }
[data-theme="dark"] .snav-studios { color: var(--text); }

.snav-right {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.snav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.snav-links a {
  font-family: 'DM Sans', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted-inv);
  text-decoration: none;
  transition: color 0.2s;
}
.snav-links a:hover { color: var(--text-inv); }
.snav-link-active { color: var(--text-inv) !important; }
.snav-link-dim { opacity: 0.6; }
.snav-link-dim:hover { opacity: 1 !important; color: var(--text-inv) !important; }

[data-theme="dark"] .snav-links a { color: var(--muted); }
[data-theme="dark"] .snav-links a:hover { color: var(--text); }
[data-theme="dark"] .snav-link-active { color: var(--text) !important; }
[data-theme="dark"] .snav-link-dim:hover { color: var(--text) !important; }

/* ── Theme toggle ────────────────────────────────────────────────────────── */

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 1px solid var(--border-ink);
  background: transparent;
  color: var(--muted-inv);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  flex-shrink: 0;
}
.theme-toggle:hover {
  border-color: var(--accent-inv);
  color: var(--accent-inv);
  background: rgba(255,255,255,0.08);
}

[data-theme="dark"] .theme-toggle { border-color: var(--border); color: var(--muted); }
[data-theme="dark"] .theme-toggle:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-bg); }

.icon-moon { display: block; }
.icon-sun  { display: none;  }
[data-theme="dark"] .icon-moon { display: none;  }
[data-theme="dark"] .icon-sun  { display: block; }

.snav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: none;
  border: 1px solid var(--border-ink);
  border-radius: 6px;
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  color: var(--muted-inv);
  flex-shrink: 0;
}
.snav-hamburger span {
  display: block;
  width: 16px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: opacity .15s;
}
[data-theme="dark"] .snav-hamburger { border-color: var(--border); color: var(--muted); }

@media (max-width: 600px) {
  .snav-links { display: none; }
  .snav-links.open {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface-ink);
    border-bottom: 1px solid var(--border-ink);
    padding: 8px 0;
    z-index: 199;
    box-shadow: 0 6px 24px rgba(0,0,0,.25);
  }
  .snav-links.open li { border-bottom: 1px solid var(--border-ink); }
  .snav-links.open li:last-child { border-bottom: none; }
  .snav-links.open a { display: block; padding: 14px 20px; font-size: 13px; }
  .snav-hamburger { display: flex; }
  #site-nav { padding: 12px 16px; position: relative; }
}