/* PawAnswer shared UI layer.
   Static shadcn/ui-style primitives and site-wide visual normalization.
   See DESIGN.md before changing tokens or component behavior. */

:root {
  --background: #fafaf8;
  --foreground: #1d2521;
  --card: #ffffff;
  --card-foreground: #1d2521;
  --muted-surface: #f1f4f1;
  --primary: #285f53;
  --primary-hover: #1f5146;
  --primary-foreground: #ffffff;
  --accent: #b95648;
  --border: #dce2dd;
  --ring: rgba(40, 95, 83, .22);
  --success: #255d4e;
  --warning: #7c5715;
  --danger: #a23b31;
  --radius: 12px;

  /* Legacy aliases. New CSS should use the semantic tokens above. */
  --ink: var(--foreground);
  --paper: var(--background);
  --paper-strong: var(--muted-surface);
  --sage: #4d8176;
  --sage-deep: var(--primary);
  --coral: var(--accent);
  --line: var(--border);
  --white: var(--card);
  --muted: #65706a;
}

body { background: var(--background); color: var(--foreground); }

.ui-icon {
  display: inline-block; width: 17px; height: 17px; flex: 0 0 auto;
  vertical-align: -3px;
}

.ui-card {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--card); color: var(--card-foreground);
  box-shadow: 0 1px 2px rgba(28, 34, 31, .04);
}

.ui-badge {
  display: inline-flex; width: fit-content; min-height: 26px; align-items: center; gap: 6px;
  padding: 4px 9px; border: 1px solid var(--border); border-radius: 999px;
  background: var(--card); color: var(--foreground); font-size: 12px; font-weight: 800; line-height: 1;
}

.ui-button {
  display: inline-flex; min-height: 42px; align-items: center; justify-content: center; gap: 8px;
  padding: 9px 16px; border: 1px solid transparent; border-radius: 8px;
  font-size: 14px; font-weight: 800; line-height: 1;
  transition: background .16s ease, border-color .16s ease, box-shadow .16s ease;
}
.ui-button-primary { background: var(--primary); color: var(--primary-foreground); }
.ui-button-primary:hover { background: var(--primary-hover); }
.ui-button-outline { border-color: var(--border); background: var(--card); color: var(--foreground); }
.ui-button-outline:hover { border-color: #bfcac2; background: var(--muted-surface); }

.ui-alert {
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 14px;
  padding: 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card);
}
.ui-alert-danger { border-color: #e2b8b2; background: #fff8f7; color: var(--danger); }

.ui-button:focus-visible,
.article-header a:focus-visible,
.site-header a:focus-visible,
.article-shell a:focus-visible,
main a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--ring); outline-offset: 2px;
}

/* Shared navigation */
.article-header {
  padding: 13px 0; border-color: rgba(220, 226, 221, .86);
  background: rgba(250, 250, 248, .94);
}
.article-header nav { align-items: center; gap: 4px; }
.article-header nav a {
  padding: 8px 10px; border-radius: 8px; color: var(--muted);
  font-size: 14px; font-weight: 750;
}
.article-header nav a:hover { background: var(--muted-surface); color: var(--foreground); }
.article-header nav a[aria-current="page"] { background: #eaf1ed; color: var(--primary); }
.article-brand img { border: 1px solid rgba(40, 95, 83, .12); }

/* Hub composition */
body:not(.food-hub-page) .hub-shell > .hub-hero.has-art {
  grid-template-columns: minmax(0, 1fr) minmax(260px, 380px); gap: 48px;
  margin: 0 0 54px; padding: 44px; border: 1px solid var(--border);
  border-radius: 18px; background: var(--card);
}
.hub-shell > .hub-hero h1 { font-size: clamp(42px, 5vw, 58px); line-height: 1.08; }
.hub-art { border: 1px solid var(--border); border-radius: var(--radius); box-shadow: none; }
.hub-principles span {
  padding: 7px 10px; border: 1px solid var(--border); border-radius: 999px;
  background: var(--muted-surface); color: var(--primary); font-size: 12px;
}
.hub-intro { overflow: hidden; border-color: var(--border); border-radius: var(--radius); }
.hub-keywords a,
.hub-card,
.signal-card {
  border-color: var(--border); border-radius: var(--radius);
  background: var(--card); box-shadow: 0 1px 2px rgba(28, 34, 31, .035);
}
.hub-keywords a:hover,
.hub-card:hover,
.signal-card:hover {
  border-color: #bdc8c0; transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(28, 34, 31, .07);
}
.hub-card { min-height: 280px; }

/* Article composition */
.article-shell h1 { font-weight: 720; letter-spacing: -.025em; }
.article-photo,
.rail-card { border: 1px solid var(--border); box-shadow: 0 1px 2px rgba(28, 34, 31, .04); }
.article-photo { border-radius: var(--radius); }
.article-photo img { border-radius: var(--radius) var(--radius) 0 0; }
.rail-card,
.page-promises,
.quick-answer,
.sources,
.incident-card,
.context-item,
.related-grid a {
  border-color: var(--border); border-radius: var(--radius); background: var(--card);
}
.quick-answer { border-left-width: 1px; }
.context-item { border-left-width: 1px; }
.section-label,
.kicker,
.eyebrow { letter-spacing: 0; }

.check-list li {
  display: grid; grid-template-columns: 20px minmax(0, 1fr); gap: 10px;
  padding-left: 16px; border-color: var(--border); border-radius: 9px;
}
.check-list li::before {
  position: static; display: block; width: 18px; height: 18px; margin-top: 4px;
  border-radius: 50%; background-color: #e8f1ec;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23285f53' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12 4 4L19 6'/%3E%3C/svg%3E");
  background-position: center; background-size: 13px; background-repeat: no-repeat; content: "";
}

.faq-list summary {
  position: relative; padding-right: 34px; list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  position: absolute; top: 50%; right: 8px; width: 8px; height: 8px;
  border-right: 1.5px solid var(--muted); border-bottom: 1.5px solid var(--muted);
  transform: translateY(-70%) rotate(45deg); transition: transform .15s ease; content: "";
}
.faq-list details[open] summary::after { transform: translateY(-20%) rotate(225deg); }

.jump-nav a {
  display: inline-flex; min-height: 38px; align-items: center; gap: 7px;
  border-radius: 999px; background: var(--card);
}
.ui-label-icon,
.quote-likes { display: inline-flex; align-items: center; gap: 7px; }
.ui-label-icon .ui-icon { width: 15px; height: 15px; }
.quote-likes .ui-icon { width: 14px; height: 14px; }

/* Tools */
.tool-panel,
.result-card,
.tool-card {
  border-color: var(--border); border-radius: var(--radius); background: var(--card);
}
input,
select,
textarea {
  border-color: var(--border); border-radius: 8px; background: var(--card); color: var(--foreground);
}
button { border-radius: 8px; }

/* Footer */
.article-footer { background: #214f45; }
.site-footer { background: #214f45; color: white; }

@media (max-width: 900px) {
  body:not(.food-hub-page) .hub-shell > .hub-hero.has-art { gap: 30px; padding: 34px; }
}

@media (max-width: 760px) {
  .article-header nav a { padding: 8px; }
  body:not(.food-hub-page) .hub-shell > .hub-hero.has-art {
    grid-template-columns: 1fr; gap: 24px; padding: 24px;
  }
  .hub-shell > .hub-hero h1 { font-size: 40px; }
  .ui-alert { grid-template-columns: 1fr; }
}