/* Agent evaluation public site — GitHub Pages */

:root {
  --ink: #1c2b3a;
  --ink-muted: #5a6b7d;
  --ink-faint: #8a9aab;
  --brand: #1a4d6d;
  --brand-soft: #e8f1f6;
  --accent: #2a7a72;
  --accent-soft: #edf6f4;
  --warn: #9a3412;
  --warn-soft: #fff7ed;
  --reject: #991b1b;
  --reject-soft: #fef2f2;
  --pass: #166534;
  --pass-soft: #f0fdf4;
  --border: #c8d4df;
  --border-light: #e4ebf1;
  --bg: #f6f8fa;
  --card: #ffffff;
  --shadow: 0 1px 2px rgba(28, 43, 58, 0.06), 0 8px 24px rgba(28, 43, 58, 0.06);
  --radius: 12px;
  --nav-w: 260px;
  --max: 720px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.55;
  min-height: 100vh;
}

a {
  color: var(--brand);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

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

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: #f2f5f8;
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

/* Layout */

.shell {
  display: grid;
  grid-template-columns: var(--nav-w) 1fr;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  background: var(--brand);
  color: #e8f1f6;
  padding: 1.25rem 1rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.sidebar a {
  color: #d6e6f0;
  text-decoration: none;
}

.sidebar a:hover,
.sidebar a:focus-visible {
  color: #fff;
}

.brand-block {
  padding: 0.25rem 0.5rem 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.brand-block .eyebrow {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #9ec0d4;
  margin: 0 0 0.35rem;
}

.brand-block h1 {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.25;
  margin: 0;
  color: #fff;
}

.brand-block .sub {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: #b7d0e0;
  margin: 0.4rem 0 0;
  line-height: 1.35;
}

.progress-wrap {
  font-family: var(--font-sans);
  padding: 0 0.5rem;
}

.progress-wrap .label {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: #9ec0d4;
  margin-bottom: 0.35rem;
}

.progress-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 99px;
  overflow: hidden;
}

.progress-bar > span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), #5ec4b8);
  border-radius: 99px;
  transition: width 0.25s ease;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  flex: 1;
}

.nav-list li {
  margin: 0;
}

.nav-list a {
  display: block;
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
  font-size: 0.84rem;
  line-height: 1.3;
}

.nav-list a .step {
  display: block;
  font-size: 0.68rem;
  color: #8fb4c9;
  margin-bottom: 0.1rem;
}

.nav-list a.is-active {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-weight: 600;
}

.nav-list a.is-done .step {
  color: #7dcea8;
}

.sidebar-foot {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: #9ec0d4;
  padding: 0.75rem 0.5rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  line-height: 1.4;
}

.sidebar-foot a {
  color: #c5e0f0;
  text-decoration: underline;
}

.main {
  min-width: 0;
}

.topbar {
  display: none;
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--brand);
  color: #fff;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.topbar button {
  font: inherit;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: transparent;
  color: #fff;
  border-radius: 8px;
  padding: 0.35rem 0.65rem;
  cursor: pointer;
}

.content {
  max-width: calc(var(--max) + 4rem);
  margin: 0 auto;
  padding: 2rem 1.5rem 5rem;
}

.article {
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.75rem 1.75rem 2rem;
}

.article > header {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 3px solid var(--accent);
}

.kicker {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.5rem;
}

.article h1 {
  font-family: var(--font-sans);
  font-size: 1.75rem;
  line-height: 1.2;
  color: var(--brand);
  margin: 0 0 0.65rem;
}

.meta {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--ink-muted);
  margin: 0;
  line-height: 1.45;
}

.meta strong {
  color: var(--ink);
  font-weight: 600;
}

.article h2 {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  color: var(--brand);
  margin: 1.75rem 0 0.65rem;
  padding: 0.35rem 0 0.35rem 0.75rem;
  border-left: 4px solid var(--accent);
  background: linear-gradient(90deg, var(--accent-soft) 0%, transparent 100%);
}

.article h3 {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--brand);
  margin: 1.25rem 0 0.5rem;
}

.article p,
.article li {
  margin: 0 0 0.75rem;
}

.article ul,
.article ol {
  padding-left: 1.25rem;
  margin: 0 0 1rem;
}

.article li {
  margin-bottom: 0.35rem;
}

.callout {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  line-height: 1.45;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  margin: 1rem 0 1.25rem;
  border-left: 4px solid var(--brand);
  background: var(--brand-soft);
}

.callout.reject {
  border-left-color: var(--reject);
  background: var(--reject-soft);
  color: #7f1d1d;
}

.callout.pass {
  border-left-color: var(--pass);
  background: var(--pass-soft);
}

.callout.warn {
  border-left-color: #c2410c;
  background: var(--warn-soft);
}

.callout strong {
  font-weight: 650;
}

.table-wrap {
  overflow-x: auto;
  margin: 0.75rem 0 1.25rem;
  border: 1px solid var(--border);
  border-radius: 10px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-sans);
  font-size: 0.84rem;
  line-height: 1.35;
  table-layout: auto;
}

th {
  background: var(--brand);
  color: #fff;
  text-align: left;
  font-weight: 600;
  padding: 0.55rem 0.65rem;
  white-space: nowrap;
}

td {
  padding: 0.5rem 0.65rem;
  border-top: 1px solid var(--border-light);
  vertical-align: top;
}

tr:nth-child(even) td {
  background: #f7fafc;
}

td.num,
th.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.75rem 0 0;
}

.tag {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 99px;
  background: var(--brand-soft);
  color: var(--brand);
}

.tag.muted {
  background: #eef2f5;
  color: var(--ink-muted);
}

.tag.reject {
  background: var(--reject-soft);
  color: var(--reject);
}

.tag.pass {
  background: var(--pass-soft);
  color: var(--pass);
}

/* Home cards */

.hero-grid {
  display: grid;
  gap: 1rem;
  margin: 1.25rem 0;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin: 1rem 0 1.5rem;
}

@media (min-width: 640px) {
  .card-grid.two {
    grid-template-columns: 1fr 1fr;
  }
}

.story-card {
  display: block;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--border-light);
  border-radius: 10px;
  padding: 1rem 1.1rem;
  background: #fff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.story-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-1px);
  color: inherit;
}

.story-card .n {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.story-card h3 {
  font-family: var(--font-sans);
  font-size: 1rem;
  margin: 0.35rem 0 0.4rem;
  color: var(--brand);
  padding: 0;
  border: 0;
  background: none;
}

.story-card p {
  font-size: 0.92rem;
  color: var(--ink-muted);
  margin: 0;
  line-height: 1.4;
}

.story-card .for {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--ink-faint);
  margin-top: 0.55rem;
}

/* Tour controls */

.tour-bar {
  position: sticky;
  bottom: 0;
  z-index: 15;
  background: rgba(246, 248, 250, 0.92);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--border-light);
  padding: 0.85rem 1.5rem;
}

.tour-inner {
  max-width: calc(var(--max) + 4rem);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-family: var(--font-sans);
}

.tour-inner .hint {
  font-size: 0.78rem;
  color: var(--ink-faint);
  display: none;
}

@media (min-width: 900px) {
  .tour-inner .hint {
    display: block;
  }
}

.btn {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--ink);
  padding: 0.55rem 0.95rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.btn:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.btn.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

.btn.primary:hover {
  background: #153d57;
  color: #fff;
}

.btn:disabled,
.btn.is-disabled {
  opacity: 0.45;
  pointer-events: none;
}

.honesty {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  background: #f8fafc;
  border: 1px solid var(--border-light);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  margin: 1rem 0;
}

.honesty ol {
  margin: 0.4rem 0 0;
  padding-left: 1.2rem;
}

.honesty li {
  margin-bottom: 0.3rem;
}

.bullet-group {
  margin: 1rem 0 1.5rem;
}

.bullet-group h3 {
  margin-bottom: 0.5rem;
}

.bullet-group ul {
  margin: 0;
}

footer.site-end {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--ink-faint);
  text-align: center;
  padding: 1.5rem;
  max-width: calc(var(--max) + 4rem);
  margin: 0 auto;
}

/* Mobile */

.nav-open .shell {
  grid-template-columns: 1fr;
}

@media (max-width: 860px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(86vw, 300px);
    z-index: 40;
    transform: translateX(-105%);
    transition: transform 0.2s ease;
    box-shadow: 8px 0 24px rgba(0, 0, 0, 0.2);
  }

  body.nav-open .sidebar {
    transform: translateX(0);
  }

  body.nav-open::after {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 32, 0.45);
    z-index: 30;
  }

  .topbar {
    display: flex;
  }

  .content {
    padding: 1.25rem 1rem 5.5rem;
  }

  .article {
    padding: 1.25rem 1.1rem 1.5rem;
  }

  .article h1 {
    font-size: 1.4rem;
  }
}

@media print {
  .sidebar,
  .topbar,
  .tour-bar {
    display: none !important;
  }

  .shell {
    display: block;
  }

  .article {
    box-shadow: none;
    border: none;
  }

  body {
    background: #fff;
  }
}