/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body { min-height: 100vh; }
img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
button:focus-visible { outline: 1px solid var(--accent); outline-offset: 3px; }
input { font-family: inherit; color: inherit; background: none; border: none; }
input:focus { outline: none; }
details summary { cursor: pointer; }
details summary::-webkit-details-marker { display: none; }

/* ── Custom Properties ── */
:root {
  /* Cool monolith palette */
  --bg:        #06080c;          /* deep blue-black */
  --bg-tint:   #06080c;
  --bg-card:   #0c1018;          /* subtle elevation */
  --bg-grid:   rgba(94, 226, 255, 0.025);

  --fg:        #e8eef5;
  --fg-dim:    rgba(232, 238, 245, 0.55);
  --fg-mute:   rgba(232, 238, 245, 0.32);

  /* Electric cyan — HAL-eye-but-cyan, biotech terminal */
  --accent:    #5ee2ff;          /* primary */
  --accent-soft: rgba(94, 226, 255, 0.12);
  --accent-bright: #82ecff;
  --accent-deep: #1ba8d1;

  /* Tier indicators */
  --tier-a:    #5ee2ff;          /* cyan — primary findings */
  --tier-b:    #a4b8cc;          /* cool gray-blue */
  --tier-c:    #7df0a8;          /* lab green — reassuring */

  /* Warning / critical — HAL red */
  --warn:      #ff3a4a;
  --warn-soft: rgba(255, 58, 74, 0.1);

  --border:    rgba(232, 238, 245, 0.10);
  --border-strong: rgba(232, 238, 245, 0.20);
  --border-accent: rgba(94, 226, 255, 0.25);

  /* Vitals overlay */
  --rune:        #7df0a8;        /* genotype-target green */
  --accent-glow: rgba(94, 226, 255, 0.35);

  --font-display: 'Space Grotesk', 'Helvetica Neue', sans-serif;
  --font-mono: 'Space Mono', 'JetBrains Mono', 'Courier New', monospace;
  --font-body: 'Space Grotesk', 'Helvetica Neue', sans-serif;

  --nav-h:     58px;
  --pad-x:     clamp(1.25rem, 5vw, 4rem);
  --max-w:     1320px;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--fg);
  overflow-x: hidden;

  /* Subtle grid backdrop — faint terminal feel */
  background-image:
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: -1px -1px;
}

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.02em;
}

a { color: inherit; text-decoration: none; transition: color 200ms ease; }
a:hover { color: var(--accent); }
::selection { background: var(--accent); color: var(--bg); }

/* ── Scrollbar — lab-thin ── */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent-deep); }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Utilities ── */
.u-upper { text-transform: uppercase; }
.u-mono  { font-family: var(--font-mono); }
.u-dim   { color: var(--fg-dim); }
.u-accent { color: var(--accent); }
.u-warn  { color: var(--warn); }
.u-good  { color: var(--tier-c); }

/* Crosshair / corner brackets — used for "framed" elements */
.u-bracketed {
  position: relative;
}
.u-bracketed::before,
.u-bracketed::after {
  content: '';
  position: absolute;
  width: 8px; height: 8px;
  border: 1px solid var(--accent);
}
.u-bracketed::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.u-bracketed::after  { bottom: -1px; right: -1px; border-left: none; border-top: none; }

/* ── Status dots ── */
.dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  vertical-align: middle;
  margin-right: 0.5em;
}
.dot--cyan  { background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.dot--green { background: var(--tier-c); box-shadow: 0 0 6px var(--tier-c); }
.dot--gray  { background: var(--fg-dim); }
.dot--red   { background: var(--warn); box-shadow: 0 0 8px var(--warn); }

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Print ── */
@media print {
  body { background: white; color: black; background-image: none; }
  .site-nav, .filter-bar, .nav-actions { display: none !important; }
  .card, .finding-block { break-inside: avoid; }
}