/* Hallmark · macrostructure: studied dossier + tab strip
 * DNA-source: url https://adithyanarayanan.com/
 * tone: austere · anchor: neutral ink
 * pre-emit critique: P5 H4 E5 S4 R5 V5
 */

@import url("tokens.css");

* { box-sizing: border-box; }

html, body {
  overflow-x: clip;
  background: var(--color-paper);
  max-width: 100%;
}

body {
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--text-body);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  transition: background 0.25s var(--ease-out), color 0.25s var(--ease-out);
}

a { color: var(--color-ink); text-decoration: none; }
a:hover { color: var(--color-pencil); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

h1 {
  font-family: var(--font-mono);
  font-weight: 700;
  font-style: normal;
  font-size: var(--text-display);
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin: 0 0 28px;
  overflow-wrap: anywhere;
  min-width: 0;
}

.page {
  max-width: 880px;
  margin: 0 auto;
  padding: 64px 40px 48px;
  position: relative;
}

.theme-toggle {
  position: absolute;
  top: 28px;
  right: 40px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: var(--text-kicker);
  letter-spacing: 0.12em;
  color: var(--color-pencil);
  background: var(--color-paper);
  border: var(--rule) solid var(--color-line);
  padding: 5px 12px;
  cursor: pointer;
}

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

.theme-toggle:active { transform: translateY(1px); }

.hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  margin-top: 8px;
}

.hero-copy { min-width: 0; flex: 1; }

.kicker {
  font-size: var(--text-kicker);
  letter-spacing: 0.2em;
  color: var(--color-pencil);
  margin-bottom: 20px;
}

.lede {
  font-size: var(--text-body);
  line-height: 1.8;
  max-width: 58ch;
  margin: 0;
}

.lede + .lede { margin-top: 12px; color: var(--color-slate); }

.portrait-wrap {
  flex: none;
  margin-top: 36px;
  width: 128px;
}

.portrait {
  display: block;
  width: 128px;
  height: auto;
  object-fit: contain;
  background: transparent;
}

:root[data-theme="dark"] .portrait {
  filter: invert(1);
}

.tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 56px;
  border-top: var(--rule) solid var(--color-ink);
}

.tab {
  appearance: none;
  margin: 0;
  padding: 14px 8px;
  border: 0;
  border-bottom: var(--rule) solid var(--color-line);
  border-right: var(--rule) solid var(--color-line);
  background: transparent;
  color: var(--color-pencil);
  font-family: var(--font-mono);
  font-size: var(--text-kicker);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
}

.tab:last-child { border-right: 0; }

.tab:hover { color: var(--color-ink); }

.tab[aria-selected="true"] {
  color: var(--color-ink);
  font-weight: 700;
  background: var(--color-paper);
  box-shadow: inset 0 -2px 0 var(--color-ink);
}

.panel { display: none; }
.panel.is-active { display: block; }

.rows {
  border-top: 0;
}

.row {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 24px;
  padding: 16px 0;
  border-bottom: var(--rule) solid var(--color-line);
}

.when {
  font-size: var(--text-meta);
  color: var(--color-pencil);
  padding-top: 2px;
}

.row b {
  display: block;
  font-size: var(--text-title);
  font-weight: 600;
  line-height: 1.45;
}

.row span,
.row p {
  display: block;
  margin: 0;
  font-size: var(--text-row);
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-slate);
}

.hello {
  margin-top: 72px;
  background: var(--color-inv-bg);
  color: var(--color-inv-fg);
  padding: 28px 32px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  flex-wrap: wrap;
}

.hello strong {
  font-weight: 700;
  font-size: 16px;
}

.hello a { color: var(--color-inv-fg); font-size: var(--text-row); }
.hello a:hover { color: var(--color-pencil); }

.hello .dot { color: var(--color-inv-fg); opacity: 0.7; }

.copy {
  margin-top: 32px;
  font-size: 11.5px;
  color: var(--color-pencil);
}

@media (max-width: 720px) {
  .page { padding: 56px 22px 40px; }
  .theme-toggle { top: 18px; right: 22px; }
  h1 { font-size: 38px; }
  .portrait-wrap,
  .portrait { width: 96px; }
  .portrait { height: auto; margin-top: 0; }
  .portrait-wrap { margin-top: 44px; }
  .tab {
    letter-spacing: 0.04em;
    padding: 12px 4px;
    font-size: 10px;
  }
  .row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }
  .hello { padding: 22px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  body, .theme-toggle { transition: none; }
}