/* ============================================================
   KG3 LLC — Brutalist Design System
   Nashville, TN | kg3.io
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Anton&family=Barlow:wght@300;400;500;600&family=Barlow+Condensed:wght@500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg:           #000000;
  --bg-2:         #0c0c0e;
  --bg-3:         #131316;
  --bg-4:         #1a1a1e;

  --blue:         #0070FF;
  --green:        #39FF14;
  --yellow:       #FFFF00;
  --cyan:         #00D4FF;

  --blue-dim:     rgba(0, 112, 255, 0.15);
  --green-dim:    rgba(57, 255, 20, 0.15);
  --yellow-dim:   rgba(255, 255, 0, 0.15);
  --cyan-dim:     rgba(0, 212, 255, 0.15);

  --text:         #f4f4f5;
  --text-2:       #a1a1aa;
  --text-3:       #52525b;
  --border:       #27272a;
  --border-mid:   #3f3f46;

  --font-display: 'Anton', sans-serif;
  --font-head:    'Barlow Condensed', sans-serif;
  --font-body:    'Barlow', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --glow-blue:    0 0 12px rgba(0,112,255,0.6), 0 0 32px rgba(0,112,255,0.2);
  --glow-green:   0 0 12px rgba(57,255,20,0.6),  0 0 32px rgba(57,255,20,0.2);
  --glow-yellow:  0 0 12px rgba(255,255,0,0.6),  0 0 32px rgba(255,255,0,0.2);
  --glow-cyan:    0 0 12px rgba(0,212,255,0.6),  0 0 32px rgba(0,212,255,0.2);

  --radius:       4px;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── Grid Overlay (background) ─────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 80px 80px;
}

/* ── Glow Classes ───────────────────────────────────────────── */
.glow-blue   { box-shadow: var(--glow-blue);   border-color: var(--blue) !important; }
.glow-green  { box-shadow: var(--glow-green);  border-color: var(--green) !important; }
.glow-yellow { box-shadow: var(--glow-yellow); border-color: var(--yellow) !important; }
.glow-cyan   { box-shadow: var(--glow-cyan);   border-color: var(--cyan) !important; }

/* ── Site Header ────────────────────────────────────────────── */
.site-header {
  position: relative;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 72px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(8px);
}

.site-header.sticky {
  position: sticky;
  top: 0;
}

.logo-box {
  display: flex;
  align-items: center;
  border: 2px solid var(--blue);
  box-shadow: var(--glow-blue);
  padding: 6px 14px;
  height: 48px;
}

.logo-box img {
  height: 30px;
  width: auto;
  filter: brightness(0) invert(1);
}

.logo-box .logo-text {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--text);
}

/* ── Site Nav ───────────────────────────────────────────────── */
.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 8px 12px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  position: relative;
}

.site-nav a:hover {
  color: var(--text);
  border-color: var(--border-mid);
}

.site-nav a.active-yellow { color: var(--yellow); border-color: rgba(255,255,0,0.3); }
.site-nav a.active-green  { color: var(--green);  border-color: rgba(57,255,20,0.3); }
.site-nav a.active-blue   { color: var(--blue);   border-color: rgba(0,112,255,0.3); }

/* ── Page Wrapper ───────────────────────────────────────────── */
.page-wrap {
  position: relative;
  z-index: 1;
  min-height: calc(100vh - 72px);
}

/* ── Section Label ──────────────────────────────────────────── */
.section-label {
  font-family: var(--font-head);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: currentColor;
  flex-shrink: 0;
}

/* ── Brutalist Tag ──────────────────────────────────────────── */
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 3px 8px;
  border: 1px solid;
}

.tag-blue   { color: var(--blue);   border-color: rgba(0,112,255,0.5);   background: var(--blue-dim); }
.tag-green  { color: var(--green);  border-color: rgba(57,255,20,0.5);   background: var(--green-dim); }
.tag-yellow { color: var(--yellow); border-color: rgba(255,255,0,0.5);   background: var(--yellow-dim); }
.tag-cyan   { color: var(--cyan);   border-color: rgba(0,212,255,0.5);   background: var(--cyan-dim); }

/* ── Rainbow Accent Bar (Pixel products) ────────────────────── */
.accent-bar-rainbow {
  height: 3px;
  background: linear-gradient(90deg,
    #FF0000 0%, #FF8800 16%, #FFFF00 32%,
    #39FF14 48%, #00D4FF 64%, #0070FF 80%,
    #8800FF 90%, #FF00AA 100%
  );
}

/* ── Site Footer ────────────────────────────────────────────── */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 4px solid var(--blue);
  box-shadow: 0 -4px 24px rgba(0,112,255,0.3);
  background: var(--bg-2);
  padding: 32px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-dots {
  display: flex;
  gap: 6px;
}

.footer-dots span {
  width: 10px;
  height: 10px;
  display: block;
}

.footer-info {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-3);
  line-height: 1.8;
}

.footer-info a { color: var(--cyan); }
.footer-info a:hover { color: var(--text); }

.footer-est {
  font-family: var(--font-display);
  font-size: 48px;
  color: rgba(255,255,255,0.04);
  letter-spacing: 0.04em;
  user-select: none;
  position: absolute;
  right: 40px;
  bottom: 12px;
  line-height: 1;
}

/* ── Utility ────────────────────────────────────────────────── */
.mono { font-family: var(--font-mono); }
.upper { text-transform: uppercase; }
.text-muted { color: var(--text-2); }
.text-dim { color: var(--text-3); }
.text-blue   { color: var(--blue); }
.text-green  { color: var(--green); }
.text-yellow { color: var(--yellow); }
.text-cyan   { color: var(--cyan); }

/* ── Theme Toggle Button ─────────────────────────────────────── */
.theme-toggle {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 7px 12px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-3);
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 12px;
  flex-shrink: 0;
}

.theme-toggle:hover {
  color: var(--text);
  border-color: var(--border-mid);
}

.theme-toggle .toggle-icon { font-style: normal; font-size: 11px; }

/* ── Light Mode Variables ────────────────────────────────────── */
[data-theme="light"] {
  --bg:           #F5F4EF;
  --bg-2:         #EDECE7;
  --bg-3:         #E3E2DC;
  --bg-4:         #D8D7D0;

  --blue:         #0060DD;
  --green:        #000000;   /* GREEN → BLACK in light mode per spec */
  --yellow:       #9A7C00;
  --cyan:         #0084AA;

  --blue-dim:     rgba(0, 96, 221, 0.10);
  --green-dim:    rgba(0, 0, 0, 0.06);
  --yellow-dim:   rgba(154, 124, 0, 0.10);
  --cyan-dim:     rgba(0, 132, 170, 0.10);

  --text:         #0a0a0a;
  --text-2:       #3a3a3a;
  --text-3:       #7a7a7a;
  --border:       #C8C7C0;
  --border-mid:   #A8A7A0;

  --glow-blue:    0 0 8px rgba(0, 96, 221, 0.3), 0 0 20px rgba(0, 96, 221, 0.1);
  --glow-green:   none;
  --glow-yellow:  0 0 8px rgba(154,124,0,0.25), 0 0 20px rgba(154,124,0,0.08);
  --glow-cyan:    0 0 8px rgba(0,132,170,0.25), 0 0 20px rgba(0,132,170,0.08);
}

/* Light mode — background grid uses dark lines */
[data-theme="light"] body::before {
  background-image:
    linear-gradient(rgba(0,0,0,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.04) 1px, transparent 1px);
}

/* Light mode — site header */
[data-theme="light"] .site-header {
  background: rgba(245,244,239,0.94);
  border-bottom-color: var(--border);
}

/* Light mode — logo box */
[data-theme="light"] .logo-box img {
  filter: none;
}

/* Light mode — footer */
[data-theme="light"] .site-footer {
  border-top-color: var(--blue);
  box-shadow: 0 -4px 24px rgba(0,96,221,0.12);
  background: var(--bg-2);
}

/* Light mode — hero title outline stroke */
[data-theme="light"] .hero-title .line-2 {
  -webkit-text-stroke: 2px var(--blue);
  color: transparent;
}

/* Light mode — footer dots adjust */
[data-theme="light"] .footer-dots span:nth-child(2) {
  background: #0a0a0a !important;
  box-shadow: none !important;
}

/* Light mode — accent bar stays vivid (it's a gradient/color, not text) */
[data-theme="light"] .stripe-green { background: #0a0a0a; }
[data-theme="light"] .stripe-rainbow { /* keep rainbow as-is */ }

/* Light mode — spec sheet body (if opened in light mode) */
[data-theme="light"] .back-btn-wrap {
  background: var(--bg-2);
  border-bottom-color: var(--border);
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .site-header { padding: 0 20px; height: 60px; }
  .site-nav a { font-size: 9px; padding: 6px 8px; }
  .theme-toggle { margin-left: 6px; padding: 5px 8px; }
  .site-footer { padding: 24px 20px; }
  .footer-est { display: none; }
}