/* ============================================================================
   Barker Lab — CoSE Theme Design System
   Exact tokens and styles from Plant_response_to_radiation & Tropism_autodecoder
   ========================================================================== */

:root {
  --bg: #ffffff;
  --fg: #1a2230;
  --muted: #5a6473;
  --line: #e5e9f0;
  --card: #f7f9fc;
  --accent: #3B6EA5;
  --accent2: #3FB6A8;
  --grey: #8A8A8A;
  --maxw: 1040px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f141b;
    --fg: #e6ebf2;
    --muted: #9aa6b6;
    --line: #232c39;
    --card: #161d27;
    --accent: #6ea3d8;
    --accent2: #54c9ba;
  }
}

html[data-theme="dark"] {
  --bg: #0f141b;
  --fg: #e6ebf2;
  --muted: #9aa6b6;
  --line: #232c39;
  --card: #161d27;
  --accent: #6ea3d8;
  --accent2: #54c9ba;
}

html[data-theme="light"] {
  --bg: #ffffff;
  --fg: #1a2230;
  --muted: #5a6473;
  --line: #e5e9f0;
  --card: #f7f9fc;
  --accent: #3B6EA5;
  --accent2: #3FB6A8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header Masthead */
header {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(59, 110, 165, 0.12), transparent);
}

header .wrap {
  padding: 48px 24px 36px;
}

.eyebrow {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-size: .8rem;
  margin: 0 0 10px;
}

h1 {
  font-size: 2.2rem;
  line-height: 1.25;
  margin: 0 0 14px;
  letter-spacing: -.02em;
  font-weight: 800;
}

.lede {
  font-size: 1.15rem;
  color: var(--muted);
  margin: 0 0 20px;
  max-width: 72ch;
  line-height: 1.5;
}

.meta {
  color: var(--muted);
  font-size: .94rem;
  margin: 0 0 24px;
}

.btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 8px;
  font-weight: 600;
  font-size: .92rem;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--fg);
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn:hover {
  text-decoration: none;
  border-color: var(--accent);
  background: var(--bg);
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.btn.primary:hover {
  text-decoration: none;
  filter: brightness(1.08);
}

section {
  padding: 44px 0;
  border-bottom: 1px solid var(--line);
}

h2 {
  font-size: 1.6rem;
  margin: 0 0 8px;
  letter-spacing: -.01em;
  font-weight: 700;
  scroll-margin-top: 24px;
}

h2 .n {
  color: var(--accent);
  font-weight: 700;
  margin-right: .5rem;
}

.sub {
  color: var(--muted);
  margin: 0 0 24px;
  font-size: 1.05rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 20px 18px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.card h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 700;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: .92rem;
}

.stat {
  font-size: 1.95rem;
  font-weight: 800;
  line-height: 1;
  margin: 2px 0 8px;
  color: var(--accent);
}

/* Tool Container */
.tool-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
  margin-top: 20px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}

.tab-nav {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
  margin-bottom: 20px;
  overflow-x: auto;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--fg);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.tab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* Figures */
figure {
  margin: 24px 0 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}

figure img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}

figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: .88rem;
  line-height: 1.45;
}

/* Tables */
table.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.92rem;
}

table.data-table th, table.data-table td {
  padding: 10px 14px;
  border: 1px solid var(--line);
  text-align: left;
}

table.data-table th {
  background: var(--card);
  font-weight: 700;
}