/* Design tokens: coffee-inspired dual light/dark theme (caramel accent #a5622a), representing
   the hi1999 umbrella brand rather than any one tool. Token NAMES, spacing/radius/shadow scale
   and font stack are shared with apps/phono and apps/trace (see
   docs/superpowers/specs/2026-09-09-support-page-redesign-design.md); only color VALUES differ.
   Light is the default/primary theme; dark is a manual opt-in via [data-theme="dark"]. Contrast
   pairs are verified in src/lib/contrast.test.ts — if you change a color, re-run that test. */
:root {
  color-scheme: light;
  --color-primary: #a5622a;
  --color-primary-active: #8a4f1f;
  --color-primary-disabled: #e6c9ab;
  --color-canvas: #fbf5ef;
  --color-surface-soft: #f3e8db;
  --color-surface-strong: #ecdcc7;
  --color-ink: #2c1c10;
  --color-body: #5c4433;
  --color-muted: #7a6350;
  --color-muted-soft: #a8927e;
  --color-on-primary: #ffffff;
  --color-hairline: #e4d5c2;
  --color-hairline-soft: #eee2d2;
  --color-border-strong: #c9b39c;
  --color-error: #b3261e;
  --color-error-hover: #8f1e17;
  --color-error-bg: #fbe9e6;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang TC', 'Microsoft JhengHei', sans-serif;

  --space-xxs: 2px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-base: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-xxl: 48px;
  --space-section: 64px;

  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --shadow-card: rgba(44, 28, 16, 0.08) 0 4px 12px;
  --shadow-card-hover: rgba(44, 28, 16, 0.14) 0 8px 20px;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --color-primary: #d98a3d;
  --color-primary-active: #c67a2f;
  --color-primary-disabled: #6b4a26;
  --color-canvas: #1c130c;
  --color-surface-soft: #241a11;
  --color-surface-strong: #2d2016;
  --color-ink: #f5ebe0;
  --color-body: #d8c7b5;
  --color-muted: #b3a08c;
  --color-muted-soft: #8f7c68;
  --color-on-primary: #1c130c;
  --color-hairline: #3a2c1e;
  --color-hairline-soft: #332619;
  --color-border-strong: #52402c;
  --color-error: #f3897f;
  --color-error-hover: #e56b60;
  --color-error-bg: #3a1e1b;

  --shadow-card: rgba(0, 0, 0, 0.3) 0 8px 8px;
  --shadow-card-hover: rgba(0, 0, 0, 0.5) 0 8px 24px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: var(--font-family);
  font-size: 16px;
  background: var(--color-canvas);
  color: var(--color-ink);
  line-height: 1.6;
}

h1, h2 { color: var(--color-ink); margin: 0 0 var(--space-base); text-wrap: balance; }
p { color: var(--color-body); margin: 0 0 var(--space-base); }
a { color: var(--color-ink); text-decoration: none; font-weight: 500; }
a:hover { color: var(--color-primary); text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}

.hint { color: var(--color-muted); font-size: 14px; }

.site-header { background: var(--color-canvas); border-bottom: 1px solid var(--color-hairline-soft); }
.site-header__inner {
  container: brand-header / inline-size;
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-base) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.brand { display: flex; align-items: center; min-height: 48px; text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand__logo { height: 48px; width: auto; display: block; }
.brand__logo--compact { display: none; height: 40px; max-width: 100%; object-fit: contain; }
@container brand-header (width < 340px) {
  .brand__logo--horizontal { display: none; }
  .brand__logo--compact { display: block; }
}
.brand__logos { display: contents; }
:root[data-theme="dark"] .brand__logos--light { display: none; }
:root:not([data-theme="dark"]) .brand__logos--dark { display: none; }

.site-nav { display: flex; align-items: center; gap: var(--space-sm); }
.theme-toggle {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--color-muted);
  font-family: var(--font-family);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.theme-toggle:hover { color: var(--color-ink); }

.page { max-width: 720px; margin: 0 auto; padding: var(--space-xl) var(--space-lg) var(--space-xxl); }
.hero { display: flex; flex-direction: column; gap: var(--space-sm); margin-bottom: var(--space-xl); }
.eyebrow { color: var(--color-muted); font-size: .9rem; letter-spacing: .1em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.25; letter-spacing: -.02em; }
.intro { max-width: 44rem; font-size: 1.05rem; }

.card { background: var(--color-surface-soft); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); padding: var(--space-xl); margin-bottom: var(--space-xl); }
.card h2 { font-size: 1.1rem; }

.fallback { color: var(--color-ink); text-underline-offset: .25em; }
.note { font-size: .875rem; color: var(--color-muted); }
.pending { font-weight: 600; border-left: 4px solid var(--color-primary); padding: var(--space-sm) var(--space-base); }
#official-button .bmc-btn { max-width: 100%; min-width: 0; height: auto; min-height: 60px; padding-block: 14px; }
#official-button .bmc-btn-text { white-space: normal; line-height: 1.5; width: auto; flex-shrink: 1; overflow-wrap: anywhere; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 var(--space-lg);
  border-radius: var(--radius-full);
  border: none;
  font-family: var(--font-family);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  background: var(--color-primary);
  color: var(--color-on-primary);
  transition: background-color .15s ease;
}
.btn:hover { background: var(--color-primary-active); color: var(--color-on-primary); text-decoration: none; }

.alert { padding: var(--space-md) var(--space-base); border-radius: var(--radius-sm); margin-bottom: var(--space-base); font-size: 14px; font-weight: 500; }
.alert--success { background: var(--color-surface-strong); color: var(--color-ink); }
.alert--error { background: var(--color-error-bg); color: var(--color-error); }

.feedback-form label { display: block; font-size: 14px; font-weight: 500; margin-bottom: var(--space-xs); color: var(--color-body); }
.feedback-form textarea, .feedback-form input[type="email"] {
  width: 100%;
  padding: 12px var(--space-base);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-xs);
  font-family: var(--font-family);
  font-size: 16px;
  color: var(--color-ink);
  background: var(--color-canvas);
  margin-bottom: var(--space-base);
}
.feedback-form textarea { min-height: 140px; resize: vertical; }
.category-options { border: 0; margin: 0 0 var(--space-base); padding: 0; display: flex; flex-wrap: wrap; gap: var(--space-sm); align-items: center; }
.category-options legend { width: 100%; padding: 0; margin-bottom: var(--space-xs); }
.category-options input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.category-options label {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 var(--space-base);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-hairline);
  color: var(--color-body);
  font-weight: 500;
  cursor: pointer;
  margin: 0;
}
.category-options input:checked + label { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-on-primary); }
.category-options input:focus-visible + label { outline: 3px solid var(--color-primary); outline-offset: 2px; }
.cf-turnstile { margin-bottom: var(--space-base); }

.projects { border-top: 1px solid var(--color-hairline); display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); padding-block: var(--space-lg); }
.project { display: block; color: inherit; text-decoration: none; }
a.project:hover { text-decoration: none; }
a.project:hover h2 { color: var(--color-primary); }
.project h2 { font-size: 1.05rem; font-weight: 650; margin: 0; }
.project p { color: var(--color-muted); font-size: .9rem; margin-top: var(--space-xs); }

footer { border-top: 1px solid var(--color-hairline); padding-block: var(--space-lg) var(--space-xl); color: var(--color-muted); font-size: .875rem; display: flex; justify-content: space-between; gap: var(--space-lg); max-width: 720px; margin: 0 auto; padding-inline: var(--space-lg); }

@media (max-width: 600px) {
  .projects { grid-template-columns: 1fr; gap: var(--space-base); }
  footer { flex-direction: column; gap: var(--space-xs); }
  .category-options { flex-wrap: wrap; }
}