:root {
  --accent: #3a6bff;
  --accent-hover: #5a83ff;
  --accent-press: #1d3bb0;
  --bg: #f5f1e8;
  --fg: #05070b;
  --fg-dim: #3e4554;
  --fg-faint: #6b7285;
  --border: #dcd4bf;
  --surface: #fbf8f0;
}
[data-bg="cosmos"] {
  --bg: #05070b; --surface: #0b0d12; --border: #1e222c;
  --fg: #f5f1e8; --fg-dim: #9aa1b2; --fg-faint: #6b7285;
}
[data-bg="black"] {
  --bg: #000000; --surface: #0a0a0a; --border: #1a1a1a;
  --fg: #f5f1e8; --fg-dim: #9aa1b2; --fg-faint: #6b7285;
}
[data-bg="parchment"] {
  --bg: #f5f1e8; --surface: #fbf8f0; --border: #dcd4bf;
  --fg: #05070b; --fg-dim: #3e4554; --fg-faint: #6b7285;
}
[data-bg="white"] {
  --bg: #ffffff; --surface: #fafafa; --border: #e8e8e8;
  --fg: #0a0a0a; --fg-dim: #4a4a4a; --fg-faint: #8a8a8a;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
}
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  transition: background 220ms ease, color 220ms ease;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
input::placeholder { color: var(--fg-faint); }
button, input { font-family: inherit; }

.page { min-height: 100vh; display: flex; flex-direction: column; }

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 48px;
}
.nav .links { display: flex; }
.nav .link {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-dim);
  cursor: pointer;
  padding: 8px 0;
  margin-left: 32px;
  border-bottom: 1px solid transparent;
  transition: color 120ms, border-color 120ms;
}
.nav .link.on { color: var(--fg); border-bottom-color: var(--accent); }
.nav .link:hover { color: var(--fg); }

.wordmark {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg);
  cursor: pointer;
}
.wordmark .dot { color: var(--accent); }

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 48px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.view { display: flex; flex-direction: column; justify-content: center; }
.view[hidden] { display: none; }

.hero {
  text-align: center;
  padding: 48px 0 96px;
}
.hero .wordmark-hero {
  font-family: 'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
  font-weight: 500;
  font-size: clamp(72px, 13vw, 200px);
  letter-spacing: -0.04em;
  line-height: 0.9;
  margin: 0;
  color: var(--fg);
}
.hero .wordmark-hero .accent {
  color: var(--accent);
  font-size: 0.4em;
  vertical-align: 0.15em;
  margin-left: 0.05em;
  letter-spacing: 0;
}
.hero .sub {
  font-family: 'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
  font-weight: 400;
  font-size: clamp(20px, 2.2vw, 28px);
  letter-spacing: -0.01em;
  color: var(--fg-dim);
  margin: 28px 0 0;
}
.hero .sub .word { color: var(--fg); font-weight: 500; }

.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 880px;
  margin: 0 auto;
  width: 100%;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 32px;
  cursor: pointer;
  transition: transform 220ms cubic-bezier(0.16, 1, 0.3, 1), border-color 220ms;
  position: relative;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); }
.card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.card .name {
  font-family: 'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.card .tag {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-top: 6px;
}
.card .arrow {
  position: absolute;
  top: 28px;
  right: 28px;
  color: var(--fg-faint);
  transition: color 220ms, transform 220ms;
}
.card:hover .arrow { color: var(--accent); transform: translate(3px, -3px); }

.foot {
  padding: 28px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-faint);
}

.about {
  max-width: 860px;
  margin: 0 auto;
  width: 100%;
  padding: 48px 0;
}
.about .portrait-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 32px;
  align-items: start;
  margin: 0 0 40px;
}
.about .portrait {
  width: 180px;
  height: 220px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
  background-image:
    repeating-linear-gradient(135deg,
      transparent 0 8px,
      color-mix(in oklab, var(--fg-faint) 18%, transparent) 8px 9px);
}
.about .portrait .caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 8px 10px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-faint);
  background: color-mix(in oklab, var(--bg) 70%, transparent);
  border-top: 1px solid var(--border);
}
.about .byline {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin: 8px 0 0;
}
.about .byline strong { color: var(--fg); font-weight: 500; }
.about .eyebrow {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.about .eyebrow::before {
  content: '';
  width: 18px;
  height: 1px;
  background: var(--accent);
}
.about h1 {
  font-family: 'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
  font-size: clamp(48px, 6vw, 88px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 0.98;
  margin: 0 0 32px;
  color: var(--fg);
}
.about p {
  font-size: 18px;
  line-height: 1.65;
  color: var(--fg-dim);
  margin: 0 0 20px;
  max-width: 640px;
}
.about p strong { color: var(--fg); font-weight: 600; }

.subscribe {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.subscribe .label {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: 14px;
}
.sub-row {
  display: flex;
  gap: 8px;
  max-width: 480px;
}
.sub-row input {
  flex: 1;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 12px 16px;
  border-radius: 999px;
  font-size: 14px;
  outline: none;
  transition: border-color 120ms;
}
.sub-row input:focus { border-color: var(--accent); }
.sub-row button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: background 120ms;
}
.sub-row button:hover { background: var(--accent-hover); }
.sub-row button:active { background: var(--accent-press); }
.sub-status {
  margin-top: 14px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  min-height: 14px;
}

.tweaks {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 1000;
  background: rgba(11, 13, 18, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid #1e222c;
  border-radius: 10px;
  padding: 18px 20px;
  color: #f5f1e8;
  width: 280px;
  box-shadow: 0 24px 48px -12px rgba(0, 0, 0, 0.5);
}
.tweaks[hidden] { display: none; }
.tweaks h4 {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #9aa1b2;
  margin: 0 0 14px;
  font-weight: 500;
}
.tweaks .row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.tweaks .row-title {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #c8cbd4;
}
.tweaks .opts {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.tweaks .opt {
  padding: 5px 10px;
  border-radius: 999px;
  background: transparent;
  border: 1px solid #2a2f3b;
  color: #9aa1b2;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 120ms, background 120ms, border-color 120ms;
}
.tweaks .opt.on {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}
.tweaks .opt:hover:not(.on) { color: #fff; border-color: #4a4f5c; }
.tweaks .swatches { display: flex; gap: 6px; }
.tweaks .swatch {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid #2a2f3b;
  cursor: pointer;
  transition: box-shadow 120ms;
  padding: 0;
}
.tweaks .swatch.on { box-shadow: 0 0 0 2px #f5f1e8; }
.tweaks .hint {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed #2a2f3b;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #6b7285;
}
.tweaks .hint kbd {
  font-family: inherit;
  color: #c8cbd4;
  background: #1e222c;
  padding: 1px 5px;
  border-radius: 3px;
}

@media (max-width: 640px) {
  .nav { padding: 20px 24px; }
  .main { padding: 24px; }
  .foot { padding: 24px; }
  .nav .link { margin-left: 20px; }
  .cards { grid-template-columns: 1fr; }
  .about .portrait-row { grid-template-columns: 1fr; }
  .about .portrait { width: 100%; max-width: 240px; }
  .tweaks { right: 12px; bottom: 12px; width: calc(100% - 24px); max-width: 280px; }
}

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