/* Tech Edition — dark theme shared (L1 + landing) */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,200;0,6..72,300;0,6..72,400;0,6..72,500;0,6..72,600;0,6..72,700;1,6..72,400;1,6..72,500&family=JetBrains+Mono:wght@400;500&family=Inter:wght@400;500;600&display=swap');

:root {
  --bg: #050407;
  --bg-2: #0c0a12;
  --bg-3: #15121d;
  --line: rgba(255,255,255,0.08);
  --line-2: rgba(255,255,255,0.16);
  --ink: #f4eef7;
  --ink-2: #c9c2d4;
  --ink-3: #8a8395;
  --ink-4: #4f4a59;
  --accent: oklch(0.72 0.16 270);    /* electric blue-violet */
  --accent-2: oklch(0.62 0.22 320);   /* magenta */
  --accent-3: oklch(0.78 0.14 230);   /* cyan */
  --serif: 'Newsreader', 'Iowan Old Style', 'Hoefler Text', Georgia, serif;
  --mono: 'JetBrains Mono', 'SF Mono', ui-monospace, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }

/* Aurora background — sweeping color planes like the home page */
.aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.aurora::before, .aurora::after {
  content: '';
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(ellipse 60% 40% at 15% 35%, oklch(0.45 0.22 290 / 0.55), transparent 60%),
    radial-gradient(ellipse 55% 35% at 85% 60%, oklch(0.45 0.20 340 / 0.55), transparent 60%),
    radial-gradient(ellipse 40% 30% at 50% 50%, oklch(0.55 0.18 240 / 0.4), transparent 65%);
  filter: blur(40px);
  opacity: 0.9;
}
.aurora::after {
  background:
    linear-gradient(102deg, transparent 0%, transparent 30%, oklch(0.55 0.16 290 / 0.18) 35%, transparent 45%),
    linear-gradient(78deg, transparent 0%, transparent 50%, oklch(0.6 0.18 330 / 0.18) 56%, transparent 70%);
  filter: blur(2px);
  opacity: 0.7;
}

.bg-grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    radial-gradient(rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 3px 3px;
  mix-blend-mode: overlay;
  opacity: 0.6;
}

/* ============ nav ============ */
.te-dark-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 18px 36px;
  background: color-mix(in oklab, var(--bg) 70%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  font-family: var(--sans);
  font-size: 13.5px;
  letter-spacing: 0.01em;
}
.te-dark-nav__logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  gap: 2px;
}
.te-dark-nav__logo .eyebrow {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
}
.te-dark-nav__logo .word {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 17px;
  color: var(--ink);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.te-dark-nav__menu {
  display: flex;
  gap: 28px;
  justify-content: center;
  flex-wrap: nowrap;
}
@media (max-width: 1100px) {
  .te-dark-nav { grid-template-columns: auto 1fr auto; padding: 16px 24px; }
  .te-dark-nav__menu { gap: 18px; font-size: 12.5px; justify-content: flex-end; }
}
@media (max-width: 820px) {
  .te-dark-nav__menu { display: none; }
  .te-dark-nav { grid-template-columns: 1fr auto; }
}
.te-dark-nav__menu a { color: var(--ink-2); position: relative; padding: 4px 0; }
.te-dark-nav__menu a:hover { color: var(--ink); }
.te-dark-nav__menu a.is-active { color: var(--ink); }
.te-dark-nav__menu a.is-active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: var(--accent);
}
.te-dark-nav__right {
  display: flex;
  gap: 18px;
  justify-content: flex-end;
  align-items: center;
  color: var(--ink-3);
}
.te-dark-nav__profile {
  border: 1px solid var(--line-2);
  border-radius: 999px;
  padding: 7px 16px;
  color: var(--ink);
}

.te-dark-foot {
  border-top: 1px solid var(--line);
  margin-top: 60px;
  padding: 28px 36px;
  display: flex;
  justify-content: space-between;
  font-family: var(--sans);
  font-size: 11.5px;
  color: var(--ink-3);
  position: relative;
  z-index: 2;
}
.te-dark-foot .mono { font-family: var(--mono); letter-spacing: 0.06em; }
.te-dark-foot__left { display: flex; gap: 24px; align-items: center; }
.te-dark-foot__pip {
  width: 7px; height: 7px;
  background: oklch(0.7 0.18 145);
  border-radius: 50%;
  box-shadow: 0 0 0 4px oklch(0.7 0.18 145 / 0.18);
}

.eyebrow-mono {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.eyebrow-mono .accent { color: var(--accent); }