body.theme-zero {
  background:
    radial-gradient(circle, color-mix(in srgb, var(--fg), transparent 88%) 0 1px, transparent 1.3px) 0 0 / 12px 12px,
    linear-gradient(90deg, transparent 49.8%, color-mix(in srgb, var(--line), transparent 80%) 50%, transparent 50.2%),
    var(--bg);
  overflow-x: clip;
}

.theme-zero .topbar {
  border-bottom: 1px solid color-mix(in srgb, var(--line), transparent 35%);
  background: color-mix(in srgb, var(--card), transparent 9%);
}

.theme-zero .brand {
  letter-spacing: .12em;
  font-weight: 520;
  text-transform: uppercase;
}

.theme-zero .brand::before {
  content: "○";
  color: var(--muted);
  font-weight: 300;
}

.theme-zero .hero {
  min-height: min(820px, 89vh);
  border-bottom: 1px solid color-mix(in srgb, var(--line), transparent 48%);
  overflow: clip;
}

.theme-zero .hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 8%;
  right: 4%;
  width: min(360px, 40vw);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--line), transparent 25%);
  background: radial-gradient(circle, color-mix(in srgb, var(--fg), transparent 74%) 0 1.5px, transparent 1.8px) 0 0 / 10px 10px;
  opacity: .66;
}

.theme-zero .hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: 7%;
  bottom: 9%;
  width: 54%;
  height: 1px;
  background: var(--line);
  box-shadow: 0 6px 0 color-mix(in srgb, var(--line), transparent 32%), 0 12px 0 color-mix(in srgb, var(--line), transparent 62%);
}

.theme-zero h1 {
  max-width: 760px;
  font-weight: 480;
  letter-spacing: -.045em;
}

.theme-zero .hero-sub {
  max-width: 540px;
}

.theme-zero .button {
  font-weight: 520;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.theme-zero .section {
  border-top-color: color-mix(in srgb, var(--line), transparent 40%);
}

.theme-zero .section-head {
  grid-template-columns: minmax(104px, .24fr) minmax(0, 1fr);
}

.theme-zero .section-index {
  color: var(--muted);
  font-weight: 450;
}

.theme-zero :is(.card, .timeline-item, .principle, .hero-card) {
  background:
    radial-gradient(circle, color-mix(in srgb, var(--fg), transparent 88%) 0 1px, transparent 1.3px) 0 0 / 12px 12px,
    var(--card);
}

.theme-zero .tag,
.theme-zero .skill-pill {
  border-radius: 1px;
  border-color: color-mix(in srgb, var(--line), transparent 28%);
  background: color-mix(in srgb, var(--card), transparent 14%);
  letter-spacing: .08em;
}

.theme-zero .contact-panel,
.theme-zero .reveal {
  border: 1px solid color-mix(in srgb, var(--line), transparent 30%);
  background:
    repeating-linear-gradient(90deg, transparent 0 15px, color-mix(in srgb, var(--line), transparent 88%) 15px 16px),
    var(--card-strong);
}

.theme-zero .reveal::before {
  content: "";
  inset: 0 0 0 auto;
  width: 36%;
  background: radial-gradient(circle, color-mix(in srgb, var(--fg), transparent 78%) 0 1.2px, transparent 1.5px) 0 0 / 9px 9px;
  opacity: .48;
}

.theme-zero .reveal-stat {
  border-radius: 1px;
  border-color: color-mix(in srgb, var(--line), transparent 32%);
}

@media (max-width: 720px) {
  .theme-zero .hero { min-height: auto; }
  .theme-zero .hero::before { right: -18%; width: 58vw; opacity: .34; }
  .theme-zero .hero::after { width: 76%; }
  .theme-zero .section-head { grid-template-columns: 1fr; }
  .theme-zero .reveal::before { width: 24%; opacity: .25; }
}

@media (prefers-reduced-motion: no-preference) {
  .theme-zero .hero::before { animation: zero-vibration 9s ease-in-out infinite alternate; }
}

@keyframes zero-vibration {
  to { transform: translateY(5px); opacity: .54; }
}

/* Perforation, hairlines, and a single empty circle hold the surface near zero. */
.theme-zero .regenerating {
  color: var(--fg);
  background:
    radial-gradient(circle, color-mix(in srgb, var(--fg), transparent 83%) 0 1px, transparent 1.4px) 0 0 / 12px 12px,
    linear-gradient(90deg, transparent 49.8%, color-mix(in srgb, var(--line), transparent 36%) 50%, transparent 50.2%),
    var(--bg);
}

.theme-zero .regen-box {
  position: relative;
  isolation: isolate;
  width: min(590px, 100%);
  padding: clamp(30px, 8vw, 58px);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--line), transparent 20%);
  border-radius: 1px;
  background:
    radial-gradient(circle, color-mix(in srgb, var(--fg), transparent 88%) 0 1px, transparent 1.4px) 0 0 / 11px 11px,
    var(--card);
  color: var(--fg);
  box-shadow: none;
  font-family: var(--sans);
}

.theme-zero .regen-box::before {
  content: "○";
  position: absolute;
  top: 8%;
  right: 8%;
  z-index: -1;
  color: color-mix(in srgb, var(--fg), transparent 44%);
  font: 300 clamp(70px, 20vw, 142px)/1 var(--sans);
}

.theme-zero .regen-box::after {
  content: "";
  position: absolute;
  right: 8%;
  bottom: 15%;
  left: 8%;
  z-index: -1;
  height: 1px;
  background: var(--line);
  box-shadow: 0 6px 0 color-mix(in srgb, var(--line), transparent 32%), 0 12px 0 color-mix(in srgb, var(--line), transparent 60%);
}

.theme-zero .regen-line {
  position: relative;
  z-index: 1;
  margin: 5px 0;
  padding: 4px 8px;
  padding-inline-start: 28px;
  border: 1px solid color-mix(in srgb, var(--line), transparent 18%);
  border-radius: 1px;
  background: var(--card);
  color: var(--fg);
  letter-spacing: .05em;
  opacity: .8;
}

.theme-zero .regen-line.active {
  background: var(--fg);
  color: var(--card);
  opacity: 1;
}

.theme-zero .regen-line::before {
  border-radius: 50%;
}