/*
 * Physique website (getphysique.app): landing page and legal pages.
 * Colors, type, spacing and radii come from tokens.css (a byte-for-byte copy of the agent site's tokens.css,
 * checked in CI); link tokens.css before this file. Dark only, like the app. No JavaScript, no inline styles (strict CSP).
 */

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 16px; }
body {
  margin: 0;
  background: var(--measure-background);
  color: var(--measure-text-primary);
  font: var(--measure-type-body-weight) var(--measure-type-body-size)/1.6 var(--measure-font-system);
}
[hidden] { display: none !important; }

.page { max-width: 45rem; margin: 0 auto; padding: 24px 16px 48px; }
.page.narrow { max-width: 30rem; }

/* Header: app icon + wordmark, identical on every page. */
.brand { margin: 0 0 24px; }
.brand-link {
  display: inline-flex; align-items: center; gap: var(--measure-spacing-md);
  min-height: var(--measure-spacing-touch-target);
  color: var(--measure-text-primary); text-decoration: none;
  font-size: 18px; font-weight: 700; letter-spacing: 0.01em;
}
.brand-icon { width: 32px; height: 32px; border-radius: 22.4%; flex: none; display: block; }

h1 {
  font-size: var(--measure-type-screen-title-size); font-weight: var(--measure-type-screen-title-weight);
  line-height: 1.25; margin: 0 0 var(--measure-spacing-md); overflow-wrap: anywhere;
}
h2 {
  font-size: var(--measure-type-modal-title-size); font-weight: var(--measure-type-modal-title-weight);
  line-height: 1.35; margin: 0 0 var(--measure-spacing-sm);
}
h3 {
  font-size: var(--measure-type-body-size); font-weight: var(--measure-type-modal-title-weight);
  line-height: 1.4; margin: 0 0 var(--measure-spacing-xs);
}
@media (min-width: 480px) {
  h1 { font-size: var(--measure-type-detail-title-size); font-weight: var(--measure-type-detail-title-weight); }
}
p { margin: 0 0 var(--measure-spacing-md); }
.muted { color: var(--measure-text-secondary); }
.small { font-size: var(--measure-type-screen-subtitle-size); }
a { color: var(--measure-accent); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
strong { font-weight: 600; }

/* Focus: lime ring, visible on every dark surface. */
:focus-visible { outline: 2px solid var(--measure-accent); outline-offset: 2px; border-radius: var(--measure-radius-chip); }

.card, .block {
  background: var(--measure-surface);
  border: 1px solid var(--measure-border-default);
  border-radius: var(--measure-radius-card);
  padding: 20px 16px;
  margin: 0 0 16px;
}
.card { border-radius: var(--measure-radius-hero); }
.block > :last-child, .card > :last-child { margin-bottom: 0; }

/* Buttons: lime primary with dark text. */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: var(--measure-spacing-touch-target); padding: 10px 16px;
  font: inherit; font-size: var(--measure-type-body-size); font-weight: var(--measure-type-action-emphasis-weight);
  text-decoration: none; text-align: center;
  color: var(--measure-text-primary); background: var(--measure-surface-3);
  border: 1px solid var(--measure-border-emphasis); border-radius: var(--measure-radius-icon-button);
}
.btn:hover { background: var(--measure-surface-2); border-color: var(--measure-text-secondary); }
.btn.primary { background: var(--measure-accent); color: var(--measure-on-accent-primary); border-color: var(--measure-accent); }
.btn.primary:hover { background: var(--measure-accent); filter: brightness(1.08); }
.btn-row { display: flex; flex-direction: column; gap: 10px; margin: 20px 0 0; }
.btn-row .btn { width: 100%; }
@media (min-width: 480px) {
  .btn-row { flex-direction: row; flex-wrap: wrap; }
  .btn-row .btn { width: auto; }
}

/* Landing page */
.lede { font-size: 17px; color: var(--measure-text-secondary); }
.tagline {
  margin: 0 0 var(--measure-spacing-md);
  font-size: var(--measure-type-row-label-size); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--measure-accent);
}
.hero { padding: 8px 0 8px; }
.hero h1 { font-size: 34px; font-weight: 700; margin-bottom: var(--measure-spacing-xs); }
.links { margin: 16px 0 0; font-size: var(--measure-type-screen-subtitle-size); color: var(--measure-text-secondary); }

/* Code, URLs, dates: DM Mono. */
code, .mono {
  font-family: var(--measure-font-mono);
  font-size: var(--measure-type-mono-body-size); font-weight: var(--measure-type-mono-body-weight);
}
:not(pre) > code { padding: 1px 5px; background: var(--measure-surface-3); border-radius: var(--measure-radius-chip); overflow-wrap: anywhere; }

/* Legal pages: readable prose, anchors on headings, table of contents on top. */
.legal h1 { margin-bottom: var(--measure-spacing-xs); }
.legal .updated { margin: 0 0 20px; font-family: var(--measure-font-mono); font-size: var(--measure-type-mono-caption-size); color: var(--measure-text-secondary); }
.legal h2 {
  margin: 36px 0 var(--measure-spacing-sm); padding-top: 20px;
  border-top: 1px solid var(--measure-border-default);
  font-size: 18px;
}
.legal h3 { margin: 24px 0 var(--measure-spacing-xs); }
.legal h4 { margin: 20px 0 var(--measure-spacing-xs); font-size: var(--measure-type-action-size); font-weight: 600; }
.legal h2[id], .legal h3[id], .legal h4[id] { scroll-margin-top: 16px; }
.legal ul, .legal ol { margin: 0 0 var(--measure-spacing-md); padding-left: 1.4rem; }
.legal li { margin-bottom: var(--measure-spacing-xs); }
.legal li > ul, .legal li > ol { margin-top: var(--measure-spacing-xs); margin-bottom: 0; }
.legal blockquote {
  margin: 0 0 var(--measure-spacing-md); padding: 10px var(--measure-spacing-md);
  background: var(--measure-accent-tint-006); border-left: 3px solid var(--measure-accent-tint-060);
  border-radius: 0 var(--measure-radius-sm) var(--measure-radius-sm) 0;
}
.legal blockquote > :last-child { margin-bottom: 0; }
.legal hr { border: 0; border-top: 1px solid var(--measure-border-default); margin: 28px 0; }
.legal address { font-style: normal; margin: 0 0 var(--measure-spacing-md); }

.toc {
  background: var(--measure-surface); border: 1px solid var(--measure-border-default);
  border-radius: var(--measure-radius-card); padding: 16px 16px 8px; margin: 0 0 8px;
}
.toc h2 {
  margin: 0 0 var(--measure-spacing-sm); padding: 0; border: 0;
  font-size: var(--measure-type-row-label-size); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--measure-text-secondary);
}
.toc ul { list-style: none; margin: 0 0 var(--measure-spacing-sm); padding: 0; }
.toc li { margin: 0; }
.toc li a { display: inline-block; padding: 3px 0; }
.legal .notice {
  margin: 0 0 var(--measure-spacing-md); padding: 10px var(--measure-spacing-md);
  background: var(--measure-accent-tint-012); border-radius: var(--measure-radius-sm);
}
.legal .notice a { font-weight: 600; }

/* Tables scroll horizontally on narrow screens instead of breaking the page. */
.table-wrap { overflow-x: auto; margin: 0 0 var(--measure-spacing-md); border: 1px solid var(--measure-border-default); border-radius: var(--measure-radius-sm); }
.table-wrap:focus-visible { outline-offset: 0; }
.legal table { width: 100%; min-width: 34rem; border-collapse: collapse; font-size: var(--measure-type-action-size); line-height: 1.5; }
.legal th, .legal td { padding: 10px var(--measure-spacing-md); text-align: left; vertical-align: top; border-top: 1px solid var(--measure-border-default); }
.legal thead th { border-top: 0; background: var(--measure-surface-2); font-weight: 600; white-space: nowrap; }
.legal tbody tr:nth-child(even) { background: var(--measure-accent-tint-004); }

/* Footer: Privacy, Terms, Support, copyright. Identical on every page. */
.site-footer {
  margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--measure-border-default);
  font-size: var(--measure-type-screen-subtitle-size); color: var(--measure-text-secondary);
}
.site-footer ul { list-style: none; margin: 0 0 var(--measure-spacing-sm); padding: 0; display: flex; flex-wrap: wrap; gap: 0 20px; }
.site-footer a { display: inline-flex; align-items: center; min-height: var(--measure-spacing-touch-target); color: var(--measure-text-primary); }
.site-footer p { margin: 0; }