/* ===========================================================================
   BIM_MCP 共用樣式 — 沿用 0425/0523 黑底藍 accent 視覺系統
   日期：2026-05-18 / 版本：v1.0
   給 reference/ + 2026-XX/ + hands-on-latest/ + index 使用
   =========================================================================== */

/* ===== CSS VARIABLES ===== */
:root {
  /* 色票 */
  --bg: #000;
  --bg-elevated: #0a0a0a;
  --bg-card: rgba(255,255,255,0.03);
  --bg-card-hover: rgba(255,255,255,0.06);
  --border: rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.2);

  --text-primary: #fff;
  --text-secondary: rgba(255,255,255,0.7);
  --text-muted: rgba(255,255,255,0.5);
  --text-faint: rgba(255,255,255,0.3);

  --accent: #60a5fa;
  --accent-bg: rgba(96,165,250,0.08);
  --accent-bg-strong: rgba(96,165,250,0.15);
  --accent-border: rgba(96,165,250,0.3);

  --warn: #fbbf24;
  --warn-bg: rgba(251,191,36,0.06);
  --warn-border: rgba(251,191,36,0.25);

  --ok: #4ade80;
  --ok-bg: rgba(74,222,128,0.06);
  --ok-border: rgba(74,222,128,0.25);

  --bad: #ef4444;
  --bad-bg: rgba(239,68,68,0.06);
  --bad-border: rgba(239,68,68,0.3);

  /* 字型 — 加入 JetBrains Mono 編碼感（GENAI 借鏡） */
  --font-sans: 'Helvetica Neue', 'Inter', 'Noto Sans TC', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', monospace;
  --font-tech: 'JetBrains Mono', monospace;  /* 純技術標籤專用 */

  /* 間距 */
  --gap-xs: 6px;
  --gap-sm: 12px;
  --gap-md: 20px;
  --gap-lg: 32px;
  --gap-xl: 48px;
  --gap-2xl: 80px;

  /* 圓角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 100px;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
}
::selection { background: var(--text-primary); color: var(--bg); }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-border);
  transition: border-color 0.3s;
}
a:hover { border-color: var(--accent); }

/* ===== TOP NAV — 統一 breadcrumb 回 BIM_MCP/index ===== */
.bim-topnav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 14px 32px;
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13px;
}
.bim-topnav-left { display: flex; align-items: center; gap: 12px; }
.bim-topnav-home {
  color: var(--text-secondary);
  font-weight: 600; letter-spacing: 1px;
  border: none;
}
.bim-topnav-home:hover { color: var(--text-primary); }
.bim-topnav-sep { color: var(--text-faint); }
.bim-topnav-current {
  color: var(--accent);
  font-weight: 600;
}
.bim-topnav-actions { display: flex; gap: 10px; }
.bim-topnav-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 12px;
}
.bim-topnav-btn:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
  background: rgba(255,255,255,0.08);
}
.bim-topnav-btn-primary {
  background: rgba(96,165,250,0.12);
  border-color: rgba(96,165,250,0.6);
  color: var(--accent);
}
.bim-topnav-btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #000;
}
.bim-topnav-btn-github svg {
  width: 14px; height: 14px; fill: currentColor; display: block;
}

/* ===== PAGE HEADER ===== */
.bim-hero {
  padding: 100px 40px 60px;
  max-width: 1100px; margin: 0 auto;
  border-bottom: 1px solid var(--border);
}
.bim-hero-eyebrow {
  font-size: 11px; letter-spacing: 4px; text-transform: uppercase;
  color: var(--text-faint); margin-bottom: 18px;
}
.bim-hero-eyebrow .accent {
  color: var(--accent);
  border: 1px solid var(--accent-border);
  padding: 3px 10px; border-radius: var(--radius-sm);
  margin-left: 8px;
}
.bim-hero-title {
  font-size: 48px; font-weight: 800; letter-spacing: 0;
  line-height: 1.15; margin-bottom: 18px;
}
.bim-hero-title .accent { color: var(--accent); }
.bim-hero-sub {
  font-size: 18px; color: var(--text-secondary);
  font-weight: 300; line-height: 1.7; max-width: 800px;
}

/* ===== CONTAINER ===== */
.bim-section {
  padding: 60px 40px;
  max-width: 1100px; margin: 0 auto;
  border-bottom: 1px solid var(--border);
}
.bim-section:last-of-type { border-bottom: none; }
.bim-section-eyebrow {
  font-size: 11px; letter-spacing: 4px; text-transform: uppercase;
  color: var(--accent); font-weight: 600; margin-bottom: 12px;
}
.bim-section-title {
  font-size: 32px; font-weight: 800; letter-spacing: 0;
  line-height: 1.2; margin-bottom: 16px;
}
.bim-section-desc {
  font-size: 16px; color: var(--text-secondary);
  line-height: 1.7; margin-bottom: var(--gap-lg);
  max-width: 800px;
}

/* ===== TYPOGRAPHY ===== */
h2 { font-size: 28px; font-weight: 700; letter-spacing: 0; margin: var(--gap-xl) 0 var(--gap-md) 0; }
h3 { font-size: 22px; font-weight: 700; letter-spacing: 0; margin: var(--gap-lg) 0 var(--gap-sm) 0; color: var(--text-primary); }
h4 { font-size: 17px; font-weight: 600; margin: var(--gap-md) 0 var(--gap-sm) 0; color: var(--text-primary); }
p { margin-bottom: var(--gap-sm); color: var(--text-secondary); }
strong { color: var(--text-primary); font-weight: 700; }
em { color: var(--text-primary); font-style: italic; }

ul, ol { padding-left: 24px; margin-bottom: var(--gap-md); color: var(--text-secondary); }
li { margin-bottom: 6px; line-height: 1.7; }

blockquote {
  border-left: 3px solid var(--accent-border);
  background: var(--accent-bg);
  padding: 16px 24px;
  margin: var(--gap-md) 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-secondary);
}
blockquote p { margin-bottom: 8px; }
blockquote cite {
  display: block; margin-top: 10px;
  font-size: 13px; color: var(--text-muted);
  font-style: normal;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: rgba(96,165,250,0.12);
  color: var(--accent);
  padding: 2px 7px;
  border-radius: var(--radius-sm);
}

pre {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin: var(--gap-md) 0;
  overflow-x: auto;
  position: relative;
}
pre code {
  background: transparent;
  color: #e0e0e0;
  padding: 0;
  font-size: 13px;
  line-height: 1.75;
  white-space: pre;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--gap-md) 0;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
th {
  background: rgba(255,255,255,0.04);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.5px;
}
td { color: var(--text-secondary); }
tr:last-child td { border-bottom: none; }

/* ===== COMMON COMPONENTS ===== */

/* Card */
.bim-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: var(--gap-md);
  transition: border-color 0.3s, background 0.3s;
}
.bim-card:hover {
  border-color: var(--accent-border);
  background: var(--bg-card-hover);
}

.bim-card-accent {
  background: var(--accent-bg);
  border-color: var(--accent-border);
}
.bim-card-warn {
  background: var(--warn-bg);
  border-color: var(--warn-border);
}
.bim-card-ok {
  background: var(--ok-bg);
  border-color: var(--ok-border);
}
.bim-card-bad {
  background: var(--bad-bg);
  border-color: var(--bad-border);
}

/* Grid */
.bim-grid {
  display: grid;
  gap: var(--gap-md);
  margin: var(--gap-md) 0;
}
.bim-grid-2 { grid-template-columns: repeat(2, 1fr); }
.bim-grid-3 { grid-template-columns: repeat(3, 1fr); }
.bim-grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Prop badge (P1-P22) */
.prop-badge {
  display: inline-block;
  font-size: 11px; font-weight: 700;
  letter-spacing: 2px;
  padding: 4px 12px;
  background: var(--accent-bg-strong);
  color: var(--accent);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-pill);
  margin-right: 6px; margin-bottom: 6px;
}
.prop-badge.large { font-size: 13px; padding: 6px 16px; letter-spacing: 3px; }
.prop-badge.muted { opacity: 0.5; }

/* PASS / FAIL tags */
.pass-tag {
  display: inline-block;
  padding: 2px 9px; border-radius: var(--radius-pill);
  font-size: 11px; font-weight: 700; letter-spacing: 1px;
  background: rgba(74,222,128,0.15); color: var(--ok);
  border: 1px solid rgba(74,222,128,0.35);
}
.fail-tag {
  display: inline-block;
  padding: 2px 9px; border-radius: var(--radius-pill);
  font-size: 11px; font-weight: 700; letter-spacing: 1px;
  background: rgba(239,68,68,0.15); color: var(--bad);
  border: 1px solid rgba(239,68,68,0.35);
}

/* User quote (使用者原文) */
.user-quote {
  border: 1px solid var(--border-strong);
  background: rgba(255,255,255,0.02);
  padding: 24px 32px;
  margin: var(--gap-md) 0;
  font-style: italic;
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
  border-radius: var(--radius-md);
  position: relative;
}
.user-quote::before {
  content: '"';
  position: absolute; top: -8px; left: 14px;
  font-size: 48px;
  color: rgba(255,255,255,0.2);
  font-family: serif;
}
.user-quote-attr {
  display: block;
  margin-top: 14px;
  font-size: 12px;
  font-style: normal;
  color: var(--text-faint);
  letter-spacing: 1px;
}

/* Data emphasis (大字數據) */
.data-emph {
  font-size: 56px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0;
  line-height: 1;
  display: inline-block;
}

/* Figure assets */
.bim-hero-figure,
.bim-figure {
  margin: var(--gap-lg) 0 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000;
}
.bim-figure {
  margin-bottom: var(--gap-lg);
}
.bim-hero-figure img,
.bim-figure img,
.bim-card-figure img {
  display: block;
  width: 100%;
  height: auto;
}
.bim-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--font-tech);
  letter-spacing: 0;
}
.bim-card-figure {
  width: 120px;
  max-width: 40%;
  margin: 0 0 var(--gap-sm);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000;
}
.quote-backdrop {
  margin-bottom: var(--gap-md);
}
.data-emph-label {
  font-size: 12px;
  color: var(--text-faint);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Hero stats grid */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-md);
  margin: var(--gap-lg) 0;
  text-align: center;
}
.hero-stat {
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-lg);
  padding: var(--gap-lg) var(--gap-md);
}

/* Section divider */
.bim-divider {
  text-align: center;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: var(--gap-xl) 0;
}
.bim-divider h2 {
  font-size: 14px; letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 400;
  margin: 0;
}

/* Copy button for pre/code */
.copy-btn {
  position: absolute; top: 8px; right: 8px;
  background: rgba(96,165,250,0.1);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 11px; font-family: inherit; font-weight: 600;
  transition: all 0.2s;
}
.copy-btn:hover { background: var(--accent-bg-strong); }
.copy-btn.copied {
  background: rgba(74,222,128,0.15);
  border-color: rgba(74,222,128,0.4);
  color: var(--ok);
}

/* TOC sidebar (optional, on wide screens) */
.bim-toc {
  position: fixed; right: 24px; top: 100px;
  width: 220px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  font-size: 13px;
  max-height: calc(100vh - 130px);
  overflow-y: auto;
}
.bim-toc-title {
  font-size: 11px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--text-faint); margin-bottom: 10px;
}
.bim-toc a {
  display: block;
  padding: 4px 0;
  color: var(--text-secondary);
  border-bottom: none;
  font-size: 13px;
}
.bim-toc a:hover { color: var(--accent); }
.bim-toc a.active { color: var(--accent); font-weight: 600; }

/* Footer */
.bim-footer {
  padding: var(--gap-xl) var(--gap-md);
  text-align: center;
  color: var(--text-faint);
  font-size: 13px;
  border-top: 1px solid var(--border);
}
.bim-footer-actions {
  display: flex; gap: var(--gap-sm);
  justify-content: center; flex-wrap: wrap;
  margin-bottom: var(--gap-md);
}
.bim-footer-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 13px; font-weight: 600;
}
.bim-footer-btn:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
}
.bim-footer-btn.primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.bim-footer-btn.primary:hover { background: var(--text-primary); border-color: var(--text-primary); }

/* Anchored section (for deep linking to propositions) */
.bim-anchor {
  scroll-margin-top: 80px;
}

/* ===========================================================================
   GENAI 借鏡新組件（2026-05-18 升級）
   =========================================================================== */

/* HOW / Technique 雙欄 box — 借自 GENAI/web 的 how-tech-box */
.how-tech {
  margin: var(--gap-lg) 0;
  padding: 22px 26px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(10,10,10,0.55);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 18px 24px;
  align-items: start;
}
.how-tech-label {
  font-family: var(--font-tech);
  font-size: 11px;
  letter-spacing: 2.5px;
  color: var(--text-faint);
  text-transform: uppercase;
  padding-top: 2px;
}
.how-tech-content {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.how-tech-content.technique {
  font-family: var(--font-tech);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.5px;
  background: rgba(96,165,250,0.06);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border-left: 2px solid var(--accent-border);
}
.how-tech-content.checklist ul {
  padding-left: 18px;
  margin: 0;
}
.how-tech-content.checklist li {
  margin-bottom: 4px;
  font-size: 14px;
}
.how-tech-content.checklist li::marker {
  color: var(--accent);
}

/* 共感句 / 行話 quote — 借自 GENAI Section 07「外包是期待奇蹟的懶惰」風格 */
.empathy-quote {
  margin: var(--gap-lg) 0;
  padding: 28px 36px;
  border-left: 3px solid var(--warn);
  background: rgba(251,191,36,0.04);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  position: relative;
}
.empathy-quote-label {
  font-family: var(--font-tech);
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--warn);
  text-transform: uppercase;
  display: block;
  margin-bottom: 10px;
  opacity: 0.85;
}
.empathy-quote-text {
  font-size: 19px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.55;
  letter-spacing: 0;
}
.empathy-quote-text em {
  color: var(--warn);
  font-style: normal;
  font-weight: 700;
}
.empathy-quote-context {
  display: block;
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  font-style: italic;
}

/* 外部參考 — Reading list 風格 */
.further-reading {
  margin: var(--gap-lg) 0;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  border-top: 2px solid var(--accent-border);
}
.further-reading-label {
  font-family: var(--font-tech);
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.further-reading-label::before {
  content: '⌥';
  font-size: 14px;
}
.further-reading-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.further-reading-list li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 14px;
  line-height: 1.6;
  display: flex;
  gap: 10px;
}
.further-reading-list li:last-child { border-bottom: none; }
.further-reading-list li::before {
  content: '→';
  color: var(--text-faint);
  flex-shrink: 0;
}
.further-reading-list .fr-type {
  font-family: var(--font-tech);
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--text-faint);
  text-transform: uppercase;
  margin-right: 6px;
  padding: 2px 6px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-sm);
  display: inline-block;
}
.further-reading-list .fr-desc {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 3px;
  margin-left: 0;
}

/* Pitfalls 警告框 — 借自 GENAI/web pitfalls-box */
.pitfalls {
  margin: var(--gap-lg) 0;
  padding: 22px 28px;
  border: 1px solid rgba(239,68,68,0.2);
  background: rgba(239,68,68,0.04);
  border-left: 3px solid var(--bad);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.pitfalls-title {
  font-family: var(--font-tech);
  font-size: 12px;
  letter-spacing: 2.5px;
  color: var(--bad);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.pitfalls-title::before { content: '⚠ '; }
.pitfalls ul { padding-left: 20px; }
.pitfalls li {
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}
.pitfalls li strong { color: var(--bad); }

/* 微互動升級 — GENAI 借鏡 */

/* prop-card 升級：hover 後 prop-card-num 放大 + glow */
.bim-card {
  transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}
.bim-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.bim-card .prop-badge {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.bim-card:hover .prop-badge {
  transform: scale(1.08);
  box-shadow: 0 0 12px rgba(96,165,250,0.25);
}

/* Topnav home link — hover glow */
.bim-topnav-home {
  transition: color 0.3s ease, text-shadow 0.3s ease;
  position: relative;
}
.bim-topnav-home:hover {
  text-shadow: 0 0 8px rgba(96,165,250,0.3);
}

/* Section divider — hover 強化 */
.bim-divider h2 {
  transition: color 0.4s ease, letter-spacing 0.4s ease;
}
.bim-divider:hover h2 {
  color: var(--text-secondary);
  letter-spacing: 5px;
}

/* Footer btn — 微 scale + shadow */
.bim-footer-btn {
  transition: all 0.3s ease;
}
.bim-footer-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(96,165,250,0.15);
}
.bim-footer-btn.primary:hover {
  box-shadow: 0 6px 20px rgba(96,165,250,0.35);
}

/* User quote — 加引號裝飾動畫 */
.user-quote {
  transition: border-color 0.3s ease, background 0.3s ease;
}
.user-quote:hover {
  border-color: rgba(255,255,255,0.35);
  background: rgba(255,255,255,0.04);
}
.user-quote::before {
  transition: color 0.3s ease, transform 0.3s ease;
}
.user-quote:hover::before {
  color: rgba(255,255,255,0.4);
  transform: scale(1.1);
}

/* Slot for monospace text inline */
.mono {
  font-family: var(--font-tech);
  font-size: 0.92em;
  letter-spacing: 0.3px;
}

/* 行話標籤（Insider Lingo / Inside Joke 風格）— 共感性裝飾 */
.lingo {
  display: inline-block;
  padding: 2px 8px;
  background: rgba(251,191,36,0.1);
  color: var(--warn);
  border: 1px dashed rgba(251,191,36,0.35);
  border-radius: var(--radius-sm);
  font-family: var(--font-tech);
  font-size: 11px;
  letter-spacing: 0.5px;
  margin: 0 2px;
}

/* 響應式：how-tech 在小螢幕改成單欄堆疊 */
@media (max-width: 700px) {
  .how-tech {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .how-tech-label {
    font-size: 10px;
    padding-top: 0;
  }
  .empathy-quote-text {
    font-size: 16px;
  }
  .empathy-quote {
    padding: 20px 22px;
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .bim-topnav { padding: 12px 16px; }
  .bim-hero { padding: 80px 20px 40px; }
  .bim-hero-title { font-size: 32px; }
  .bim-hero-sub { font-size: 15px; }
  .bim-section { padding: 40px 20px; }
  .bim-section-title { font-size: 24px; }
  .bim-grid-2, .bim-grid-3, .bim-grid-4 { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
  .data-emph { font-size: 40px; }
  .bim-toc { display: none; }
  table { font-size: 12px; }
  th, td { padding: 8px 10px; }
  blockquote { padding: 12px 16px; }
  pre { padding: 14px 14px; font-size: 12px; }
  .user-quote { padding: 18px 22px; }
}

/* ===== PRINT ===== */
@media print {
  .bim-topnav, .bim-toc, .copy-btn, .bim-footer { display: none !important; }
  body { background: #fff; color: #000; }
  a { color: #2563eb; }
  pre { background: #f5f5f5; color: #000; border: 1px solid #ccc; }
  pre code { color: #000; }
  .bim-hero, .bim-section { padding: 30px 0; max-width: 100%; }
  .bim-card { border-color: #ccc; background: #fff; break-inside: avoid; }
}

/* ===== HARVEST GROWTH LADDER — pure CSS, no JS/canvas/CDN ===== */
@media (prefers-reduced-motion: no-preference) {
  @keyframes grow-bar {
    from { transform: scaleY(0); }
    to { transform: scaleY(1); }
  }
  @keyframes count-rise {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .harvest-step {
    position: relative;
    overflow: hidden;
  }
  .harvest-step::before {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 3px;
    height: 100%;
    background: var(--accent);
    transform-origin: bottom;
    animation: grow-bar 0.6s ease-out both;
  }
  .harvest-step .data-emph {
    animation: count-rise 0.5s ease-out 0.15s both;
  }
  .harvest-step:hover {
    transform: translateY(-2px);
    transition: transform 0.3s;
  }
}

/* Global reduce-motion kill switch — must stay last to win the cascade */
@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation: none !important;
    transition: none !important;
  }
}