/* Local stakeholder deck — Mobile IA preference study */

:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --text: #1a2332;
  --muted: #5c6b7f;
  --accent: #0d4a7c;
  --accent-soft: #e8f1f8;
  --border: #d9e0ea;
  --quote-bg: #f0f4fa;
  --v1: #6b4c9a;
  --v2: #0d7a6b;
  --radius: 10px;
  --shadow: 0 2px 12px rgba(26, 35, 50, 0.06);
  --font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--accent);
}

a:hover {
  text-decoration: underline;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 100;
}

.skip-link:focus {
  left: 0;
}

.wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

header.site-header {
  background: linear-gradient(135deg, #0a3558 0%, #0d4a7c 50%, #125a8c 100%);
  color: #fff;
  padding: 2.5rem 1.25rem 2rem;
  margin-bottom: 2rem;
}

header.site-header .wrap {
  padding-bottom: 0;
}

header.site-header h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 650;
  letter-spacing: -0.02em;
}

header.site-header .meta {
  margin: 0;
  font-size: 0.95rem;
  opacity: 0.9;
  max-width: 42em;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

nav.toc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
}

nav.toc h2 {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

nav.toc ul {
  margin: 0;
  padding-left: 1.1rem;
}

nav.toc li {
  margin: 0.35rem 0;
}

section.block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.5rem 1.35rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow);
}

section.block h2 {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
  color: var(--accent);
  border-bottom: 2px solid var(--accent-soft);
  padding-bottom: 0.5rem;
}

section.block h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1.05rem;
  color: var(--text);
}

section.block p {
  margin: 0.65rem 0;
}

section.block ul {
  margin: 0.5rem 0;
  padding-left: 1.2rem;
}

section.block li {
  margin: 0.35rem 0;
}

.figure {
  margin: 1rem 0;
  border-radius: var(--radius);
  border: 1px dashed var(--border);
  background: var(--accent-soft);
  padding: 1.25rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.figure img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  display: block;
  margin: 0 auto 0.75rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 0.75rem 0 1.25rem;
}

.screen {
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--accent-soft);
}

.screen figcaption {
  font-weight: 650;
  margin-bottom: 0.65rem;
}

.screen-frame {
  display: block;
  max-width: 320px;
  height: 620px;
  margin: 0 auto;
  overflow-y: auto;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: #fff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.screen-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.screen-note {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0.75rem 0 0;
}

.quote {
  margin: 0.85rem 0;
  padding: 0.85rem 1rem;
  background: var(--quote-bg);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: #2c3a4d;
}

.quote cite {
  display: block;
  margin-top: 0.5rem;
  font-style: normal;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
  margin-right: 0.35rem;
  vertical-align: middle;
}

.badge-v1 {
  background: #ede7f5;
  color: var(--v1);
}

.badge-v2 {
  background: #e5f5f2;
  color: var(--v2);
}

.badge-50 {
  background: #fff4e5;
  color: #8a5a00;
}

.cohort-note {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0.35rem 0 0.75rem;
}

.verdict-card {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 0 1rem;
  align-items: start;
  padding: 0.9rem 1rem;
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 0.85rem 0;
}

.verdict-card .label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  align-self: start;
  padding-top: 0.15rem;
}

.verdict-card .body strong {
  display: block;
  margin-bottom: 0.25rem;
}

.verdict-card .body p {
  margin: 0.25rem 0;
}

.pick-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 0.75rem 0;
}

.pick-table th,
.pick-table td {
  border: 1px solid var(--border);
  padding: 0.65rem 0.75rem;
  text-align: left;
  vertical-align: top;
}

.pick-table th {
  background: var(--accent-soft);
  font-weight: 600;
}

.pick-table tr:nth-child(even) td {
  background: #fafbfd;
}

.pick-v1 {
  color: var(--v1);
  font-weight: 700;
}

.pick-v2 {
  color: var(--v2);
  font-weight: 700;
}

.pick-mix {
  color: #8a5a00;
  font-weight: 700;
}

table.compare {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 0.75rem 0;
}

table.compare th,
table.compare td {
  border: 1px solid var(--border);
  padding: 0.65rem 0.75rem;
  text-align: left;
  vertical-align: top;
}

table.compare th {
  background: var(--accent-soft);
  font-weight: 600;
}

table.compare tr:nth-child(even) td {
  background: #fafbfd;
}

.participant-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.participant-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 0.85rem;
  font-size: 0.9rem;
  background: #fafbfd;
}

.participant-card strong {
  display: block;
  margin-bottom: 0.25rem;
}

footer.site-footer {
  margin-top: 2rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
}

@media print {
  body {
    background: #fff;
  }

  nav.toc,
  .skip-link {
    display: none;
  }

  section.block {
    break-inside: avoid;
    box-shadow: none;
  }

  .screen-frame {
    height: auto;
    overflow: visible;
  }
}