/* BMK Audit Report — Multi-page Site Styles */
:root {
  --primary: #1a3a5c;
  --primary-light: #2d5f8a;
  --accent: #e8a838;
  --accent-dark: #d4912a;
  --bg: #f5f7fa;
  --card-bg: #ffffff;
  --text: #2c3e50;
  --text-light: #7f8c8d;
  --border: #e1e8ed;
  --success: #27ae60;
  --danger: #e74c3c;
  --warning: #f39c12;
  --info: #3498db;
  --gradient: linear-gradient(135deg, #1a3a5c 0%, #2d5f8a 50%, #3a7ab5 100%);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
a { color: var(--primary-light); text-decoration: none; }
a:hover { text-decoration: underline; }

/* NAV */
.topnav {
  background: var(--gradient);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,.15);
}
.topnav-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; gap: 0;
  padding: 0 20px;
}
.topnav .logo {
  color: #fff; font-weight: 700; font-size: 1.1rem;
  padding: 14px 16px 14px 0;
  white-space: nowrap;
  border-right: 1px solid rgba(255,255,255,.2);
  margin-right: 4px;
}
.topnav .logo span { color: var(--accent); }
.nav-links { display: flex; flex-wrap: wrap; gap: 0; }
.nav-links a {
  color: rgba(255,255,255,.85); padding: 14px 12px; font-size: .82rem;
  transition: all .2s; white-space: nowrap; border-bottom: 2px solid transparent;
}
.nav-links a:hover, .nav-links a.active {
  color: #fff; background: rgba(255,255,255,.08);
  border-bottom-color: var(--accent); text-decoration: none;
}
.hamburger { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; padding: 14px; }

/* HERO */
.hero {
  background: var(--gradient);
  color: #fff; padding: 48px 20px 40px; text-align: center;
}
.hero h1 { font-size: 2rem; margin-bottom: 8px; }
.hero p { opacity: .85; font-size: 1.05rem; max-width: 700px; margin: 0 auto; }

/* CONTAINER */
.container { max-width: 1280px; margin: 0 auto; padding: 30px 20px; }

/* CARDS */
.card {
  background: var(--card-bg); border-radius: 12px;
  box-shadow: 0 1px 6px rgba(0,0,0,.06);
  padding: 28px; margin-bottom: 24px;
  border: 1px solid var(--border);
}
.card h2 { font-size: 1.35rem; color: var(--primary); margin-bottom: 16px; border-bottom: 2px solid var(--accent); padding-bottom: 10px; }
.card h3 { font-size: 1.1rem; color: var(--primary-light); margin: 20px 0 10px; }

/* METRICS ROW */
.metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.metric-card {
  background: var(--card-bg); border-radius: 10px; padding: 20px; text-align: center;
  border: 1px solid var(--border); box-shadow: 0 1px 4px rgba(0,0,0,.04);
}
.metric-card .value { font-size: 1.8rem; font-weight: 700; color: var(--primary); }
.metric-card .label { font-size: .82rem; color: var(--text-light); margin-top: 4px; }
.metric-card.accent .value { color: var(--accent-dark); }
.metric-card.success .value { color: var(--success); }
.metric-card.danger .value { color: var(--danger); }

/* BADGES & TAGS */
.badge {
  display: inline-block; padding: 3px 10px; border-radius: 12px;
  font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .3px;
}
.badge-high { background: #fce4ec; color: var(--danger); }
.badge-medium { background: #fff8e1; color: #e65100; }
.badge-low { background: #e8f5e9; color: var(--success); }
.badge-info { background: #e3f2fd; color: var(--info); }
.tag { display: inline-block; background: #eef2f7; padding: 4px 10px; border-radius: 6px; font-size: .8rem; margin: 2px; }

/* TABLES */
table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: .9rem; }
th { background: #f0f4f8; text-align: left; padding: 10px 12px; font-weight: 600; color: var(--primary); border-bottom: 2px solid var(--border); }
td { padding: 9px 12px; border-bottom: 1px solid var(--border); }
tr:hover td { background: #fafbfd; }

/* LISTS */
.check-list { list-style: none; }
.check-list li { padding: 6px 0 6px 26px; position: relative; }
.check-list li::before { content: '✓'; position: absolute; left: 0; color: var(--success); font-weight: 700; }

/* CHARTS */
.chart-container { position: relative; max-width: 600px; margin: 16px auto; }
.chart-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; margin: 16px 0; }

/* BAR LIST (simple CSS bars) */
.bar-list { margin: 12px 0; }
.bar-item { margin-bottom: 10px; }
.bar-item .bar-label { font-size: .85rem; margin-bottom: 3px; display: flex; justify-content: space-between; }
.bar-item .bar-track { background: #eef2f7; border-radius: 6px; height: 22px; overflow: hidden; }
.bar-item .bar-fill { height: 100%; border-radius: 6px; background: var(--primary-light); transition: width .6s ease; display: flex; align-items: center; padding-left: 8px; color: #fff; font-size: .75rem; font-weight: 600; }
.bar-fill.orange { background: var(--accent); }
.bar-fill.green { background: var(--success); }
.bar-fill.red { background: var(--danger); }
.bar-fill.blue { background: var(--info); }

/* WORD CLOUD */
.word-cloud { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: center; padding: 20px; }
.word-cloud span { display: inline-block; padding: 4px 12px; border-radius: 20px; background: #eef2f7; color: var(--primary); font-weight: 600; transition: transform .2s; }
.word-cloud span:hover { transform: scale(1.1); }

/* TIMELINE */
.timeline { position: relative; padding-left: 30px; margin: 20px 0; }
.timeline::before { content: ''; position: absolute; left: 10px; top: 0; bottom: 0; width: 3px; background: var(--border); }
.timeline-item { position: relative; margin-bottom: 20px; }
.timeline-item::before {
  content: ''; position: absolute; left: -24px; top: 4px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--primary-light); border: 2px solid #fff;
  box-shadow: 0 0 0 2px var(--primary-light);
}
.timeline-item h4 { font-size: .95rem; color: var(--primary); }
.timeline-item p { font-size: .85rem; color: var(--text-light); margin-top: 4px; }

/* GRID LAYOUTS */
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }

/* COMPETITOR CARD */
.comp-card { border: 1px solid var(--border); border-radius: 10px; padding: 20px; background: #fff; }
.comp-card h4 { color: var(--primary); margin-bottom: 8px; font-size: 1rem; }
.comp-card .score { float: right; background: var(--primary); color: #fff; padding: 2px 10px; border-radius: 12px; font-size: .8rem; font-weight: 600; }
.comp-card ul { list-style: disc; padding-left: 18px; font-size: .85rem; margin: 6px 0; }
.comp-card .learn { background: #fffde7; padding: 8px 12px; border-radius: 6px; font-size: .82rem; margin-top: 10px; border-left: 3px solid var(--accent); }

/* HYPOTHESIS */
.hyp-card { border-left: 4px solid var(--primary-light); padding: 20px; background: #fff; border-radius: 0 10px 10px 0; margin-bottom: 16px; box-shadow: 0 1px 4px rgba(0,0,0,.04); }
.hyp-card.high { border-left-color: var(--danger); }
.hyp-card.medium { border-left-color: var(--warning); }
.hyp-card h4 { font-size: 1rem; color: var(--primary); margin-bottom: 8px; }
.hyp-card .meta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }

/* COLLAPSIBLE */
details { margin: 8px 0; }
details summary {
  cursor: pointer; padding: 10px 14px; background: #f0f4f8; border-radius: 8px;
  font-weight: 600; font-size: .9rem; color: var(--primary); list-style: none;
}
details summary::before { content: '▶ '; font-size: .7rem; }
details[open] summary::before { content: '▼ '; }
details[open] summary { border-radius: 8px 8px 0 0; }
details .detail-content { padding: 14px; background: #fafbfd; border: 1px solid var(--border); border-top: none; border-radius: 0 0 8px 8px; font-size: .9rem; }

/* FOOTER */
.footer { background: var(--primary); color: rgba(255,255,255,.7); text-align: center; padding: 24px 20px; margin-top: 40px; font-size: .85rem; }
.footer a { color: var(--accent); }

/* RESPONSIVE */
@media (max-width: 768px) {
  .topnav-inner { flex-wrap: wrap; }
  .nav-links { display: none; flex-direction: column; width: 100%; }
  .nav-links.open { display: flex; }
  .hamburger { display: block; margin-left: auto; }
  .hero h1 { font-size: 1.5rem; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  table { font-size: .8rem; }
  th, td { padding: 6px 8px; }
}

/* CATEGORY TABS */
.category-tabs {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 24px; padding: 16px 0;
  border-bottom: 2px solid var(--border);
}
.category-tab {
  padding: 8px 18px; border: 2px solid var(--border);
  border-radius: 24px; background: var(--card-bg);
  font-size: .88rem; font-weight: 600; cursor: pointer;
  transition: all .2s ease; color: var(--text-light);
  white-space: nowrap;
}
.category-tab:hover { border-color: var(--primary-light); color: var(--primary); }
.category-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.category-tab[data-cat="металлопрокат"].active { background: #1a3a5c; border-color: #1a3a5c; }
.category-tab[data-cat="пиломатериалы"].active { background: #27ae60; border-color: #27ae60; }
.category-tab[data-cat="профнастил"].active { background: #e67e22; border-color: #e67e22; }
.category-tab[data-cat="металлочерепица"].active { background: #c0392b; border-color: #c0392b; }
.category-tab[data-cat="металлообработка"].active { background: #8e44ad; border-color: #8e44ad; }
.category-content { display: none; }
.category-content.active { display: block; }

/* EVIDENCE TAGS */
.evidence-tag {
  display: inline-block; font-size: .72rem; font-weight: 600;
  padding: 2px 8px; border-radius: 10px;
  background: #e8f4fd; color: #2980b9;
  margin-left: 6px; vertical-align: middle;
  white-space: nowrap;
}
.evidence-tag.calls { background: #fef9e7; color: #d4912a; }
.evidence-tag.avito { background: #eafaf1; color: #27ae60; }
.evidence-tag.serp { background: #f4ecf7; color: #8e44ad; }
.evidence-tag.cases { background: #fdedec; color: #c0392b; }
.evidence-tag.podcasts { background: #e8f8f5; color: #1abc9c; }

/* CASE CARDS */
.case-card {
  padding: 18px 20px; border-radius: 12px;
  border: 1px solid var(--border); border-left: 4px solid var(--primary-light);
  background: var(--card-bg); margin-bottom: 14px;
  transition: box-shadow .2s;
}
.case-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.08); }
.case-card .case-header {
  display: flex; justify-content: space-between; align-items: flex-start;
  flex-wrap: wrap; gap: 8px; margin-bottom: 8px;
}
.case-card .case-company { font-weight: 700; color: var(--primary); font-size: 1rem; }
.case-card .case-result {
  font-weight: 700; font-size: .85rem; padding: 3px 10px;
  border-radius: 16px; background: #eafaf1; color: #27ae60;
  white-space: nowrap;
}
.case-card .case-method { font-size: .88rem; color: var(--text); margin-bottom: 6px; }
.case-card .case-takeaway {
  font-size: .82rem; color: var(--text-light);
  padding-top: 8px; border-top: 1px solid var(--border);
  margin-top: 8px;
}
.case-card.metaloprokat { border-left-color: #1a3a5c; }
.case-card.pilomaterialy { border-left-color: #27ae60; }
.case-card.profnastil { border-left-color: #e67e22; }
.case-card.metallocherepica { border-left-color: #c0392b; }
.case-card.metalloobrabotka { border-left-color: #8e44ad; }
.case-card.general { border-left-color: var(--info); }

/* PIPELINE VISUAL */
.pipeline {
  display: flex; align-items: center; justify-content: center;
  flex-wrap: wrap; gap: 0; margin: 24px 0;
}
.pipeline-step {
  text-align: center; padding: 16px 20px;
  background: var(--card-bg); border-radius: 12px;
  border: 2px solid var(--border); min-width: 140px;
}
.pipeline-step .step-number { font-size: 1.8rem; font-weight: 800; color: var(--primary); }
.pipeline-step .step-label { font-size: .82rem; color: var(--text-light); margin-top: 4px; }
.pipeline-arrow {
  font-size: 1.5rem; color: var(--accent); padding: 0 8px;
  font-weight: 700;
}

/* RECURRING IDEA CARD */
.idea-card {
  padding: 18px 20px; border-radius: 12px;
  background: linear-gradient(135deg, #f8faf8, #eef5f0);
  border: 1px solid #d5e8d4; margin-bottom: 14px;
}
.idea-card h4 { color: var(--primary); margin-bottom: 8px; }
.idea-card .idea-sources {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px;
}
.idea-card .idea-source {
  font-size: .78rem; padding: 2px 8px; border-radius: 8px;
  background: #fff; border: 1px solid #d5e8d4; color: var(--text-light);
}

/* ANTIPATTERN CARD */
.anti-card {
  padding: 18px 20px; border-radius: 12px;
  background: linear-gradient(135deg, #fef5f5, #fdeaea);
  border: 1px solid #f5c6cb; border-left: 4px solid var(--danger);
  margin-bottom: 14px;
}
.anti-card h4 { color: var(--danger); margin-bottom: 6px; }

/* RESPONSIVE ADDITIONS */
@media (max-width: 768px) {
  .category-tabs { gap: 6px; }
  .category-tab { padding: 6px 12px; font-size: .8rem; }
  .pipeline { flex-direction: column; }
  .pipeline-arrow { transform: rotate(90deg); }
  .case-card .case-header { flex-direction: column; }
}

/* PRINT */
@media print {
  .topnav, .hamburger { display: none; }
  .card { break-inside: avoid; box-shadow: none; border: 1px solid #ddd; }
  .category-tabs { display: none; }
  .category-content { display: block !important; }
}