/* Zero Day Science — instrument-panel aesthetic.
 *
 * Color palette and type scale per `rebrand-directive-zero-day-science.md`.
 * Light mode by default; dark mode auto via `prefers-color-scheme`.
 */

:root {
  --bg-light: #FAF9F6;
  --bg-dark: #1A1A1A;
  --bg-surface-light: #FFFFFF;
  --bg-surface-dark: #242424;

  --text-primary-light: #1A1A1A;
  --text-primary-dark: #E8E6E3;
  --text-secondary-light: #6B6B6B;
  --text-secondary-dark: #9B9B9B;

  --accent: #D4A843;
  --accent-muted: #D4A84333;

  --status-high: #C75D3A;
  --status-moderate: #D4A843;
  --status-low: #7A8B6F;

  --rule-light: #E8E6E3;
  --rule-dark: #2F2F2F;

  --bg: var(--bg-light);
  --bg-surface: var(--bg-surface-light);
  --text-primary: var(--text-primary-light);
  --text-secondary: var(--text-secondary-light);
  --rule: var(--rule-light);

  /* Type */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--bg-dark);
    --bg-surface: var(--bg-surface-dark);
    --text-primary: var(--text-primary-dark);
    --text-secondary: var(--text-secondary-dark);
    --rule: var(--rule-dark);
  }
}

* { box-sizing: border-box; }
html { font-feature-settings: "ss01", "cv02", "cv11"; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--text-primary); text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 0.2em; }
a:hover { text-decoration-color: var(--text-primary); }
code { font-family: var(--font-mono); font-size: 0.92em; background: var(--accent-muted); padding: 0.05em 0.3em; border-radius: 3px; }

/* ========== Header ========== */
.site-header {
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
}
.site-header__inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 32px;
}
.site-header__brand {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.05em;
  text-decoration: none;
  color: var(--text-primary);
}
.site-header__nav {
  display: flex;
  gap: 24px;
  font-size: 14px;
}
.site-header__nav a {
  color: var(--text-secondary);
  text-decoration: none;
}
.site-header__nav a:hover { color: var(--text-primary); }

/* ========== Main ========== */
.site-main {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 24px 96px;
}

.lead { font-size: 18px; color: var(--text-secondary); }
.empty-state {
  margin: 48px 0;
  padding: 24px;
  background: var(--bg-surface);
  border: 1px dashed var(--rule);
  color: var(--text-secondary);
  font-style: italic;
}

/* ========== Detection card ========== */
.feed__list { list-style: none; margin: 0; padding: 0; }
.feed__item { margin-bottom: 56px; }

.card {
  background: var(--bg-surface);
  border: 1px solid var(--rule);
  padding: 28px 32px;
}
.card--detail { padding: 36px 40px; }

.card__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule);
}
.card__number {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.05em;
  color: var(--accent);
  text-decoration: none;
}
.card__number:hover { color: var(--text-primary); }
.card__date {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-secondary);
}

.card__headline {
  margin: 0 0 12px;
  font-size: 20px;
  line-height: 1.3;
  font-weight: 600;
}
.card__headline a {
  text-decoration: none;
  color: var(--text-primary);
}
.card__headline a:hover { text-decoration: underline; text-decoration-color: var(--accent); }

.card__summary {
  margin: 0 0 20px;
  color: var(--text-secondary);
  font-size: 16px;
}

.card__body {
  margin: 24px 0;
  font-size: 17px;
  line-height: 1.7;
}
.card__body p { margin: 0 0 1.2em; }
.card__body p:last-child { margin-bottom: 0; }

.card__footer {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  line-height: 1.7;
}
.card__footer p { margin: 0; }
.card__share {
  margin-top: 8px !important;
  color: var(--accent);
}
.card__correction {
  margin-top: 8px !important;
  color: var(--status-high);
}

/* ========== Methodology ========== */
.methodology-index__list {
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
  border-top: 1px solid var(--rule);
}
.methodology-index__item {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: baseline;
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}
.methodology-index__slug {
  font-family: var(--font-mono);
  text-decoration: none;
  color: var(--text-primary);
}
.methodology-index__version {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
}
.methodology-index__date {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
}

.methodology__version {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0 0 24px;
  font-family: var(--font-mono);
}
.methodology__live { color: var(--accent); font-weight: 600; }
.methodology__historical { color: var(--text-secondary); }

/* Editorial log page (/log/{date}). Ordered list of dated entries, one
   per wake's no-publish reasoning. */
.log__intro {
  margin: 0 0 24px;
  color: var(--text-secondary);
  font-size: 15px;
}
.log__empty {
  color: var(--text-secondary);
  font-style: italic;
  margin: 24px 0;
}
.log__entries {
  list-style: none;
  padding: 0;
  margin: 0;
}
.log__entry {
  padding: 18px 0;
  border-top: 1px solid var(--rule);
}
.log__entry:first-child { border-top: 0; }
.log__time {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.log__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
}

/* Agent-edited methodology pages: the body is the codex transcript itself,
   wrapped by the publisher in a fenced ```text block. We render the body
   tighter and keep the <pre> readable on narrow screens. */
.card__body--transcript {
  font-size: 15px;
  line-height: 1.55;
}
.card__body--transcript pre {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
  /* `overflow-wrap: anywhere` is the modern, deterministic way to allow
     mid-token breaking on narrow viewports — replaces the legacy
     `word-break: break-word`. */
  overflow-wrap: anywhere;
  overflow-x: auto;
  background: var(--accent-muted);
  padding: 16px 18px;
  border-radius: 6px;
  margin: 16px 0;
}
.card__body--transcript pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}

/* ========== Footer ========== */
.site-footer {
  border-top: 1px solid var(--rule);
  margin-top: 96px;
  padding: 32px 24px 64px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
}
.site-footer__tagline {
  font-style: italic;
  margin: 0 0 8px;
}
.site-footer__line { margin: 0; }