/* ============================================
   LEAP Business Solutions - Knowledge Hub reference tools
   Shared by /knowledge.html and the dedicated pages under /knowledge/*/
   ============================================ */
:root {
  --navy: #1A4F78;
  --navy-mid: #184E77;
  --navy-light: #3299C2;
  --gold: #3299C2;
  --gold-light: #5FB8DE;
  --gold-pale: rgba(50, 153, 194, 0.08);
  --white: #ffffff;
  --off-white: #F5F7F9;
  --text-dark: #333333;
  --text-mid: #666666;
  --text-light: #999999;
  --border: #D9D9D9;
  --radius: 8px;
  --radius-lg: 16px;
}

/* ── HERO ── */
.kb-hero { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 60%, var(--navy-light) 100%); padding: 52px 2rem 44px; text-align: center; position: relative; overflow: hidden; }
.kb-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 70% 50%, rgba(50,153,194,0.08) 0%, transparent 65%); pointer-events: none; }
.kb-hero-inner { max-width: 720px; margin: auto; position: relative; z-index: 1; }
.kb-hero-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(50,153,194,0.15); border: 1px solid rgba(50,153,194,0.3); border-radius: 20px; padding: 5px 14px; font-size: 11.5px; font-weight: 600; color: var(--gold-light); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 18px; }
.kb-hero h1 { font-family: 'Playfair Display', serif; font-size: clamp(28px, 5vw, 42px); color: var(--white); font-weight: 400; line-height: 1.2; margin-bottom: 14px; }
.kb-hero h1 span { color: var(--gold); }
.kb-hero p { font-size: 15px; color: rgba(255,255,255,0.65); line-height: 1.7; max-width: 560px; margin: 0 auto 0; font-family: 'Inter', sans-serif; }
.kb-hero .breadcrumb { position: relative; z-index: 1; justify-content: center; margin-bottom: 18px; }

/* ── MAIN LAYOUT ── */
.kb-page { max-width: 1100px; margin: 0 auto; padding: 28px 2rem 60px; }

/* ── TOOL CARD ── */
.tool-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; font-family: 'Inter', sans-serif; }
.tool-card-header { padding: 20px 24px 16px; border-bottom: 1px solid var(--border); display: flex; align-items: flex-start; gap: 14px; flex-wrap: wrap; justify-content: space-between; }
.tool-header-left { display: flex; gap: 14px; align-items: flex-start; }
.tool-icon { width: 46px; height: 46px; background: var(--navy); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.tool-title { font-size: 17px; font-weight: 700; color: var(--text-dark); margin-bottom: 4px; }
.tool-desc { font-size: 13px; color: var(--text-mid); line-height: 1.5; max-width: 500px; }
.tool-meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.chip { font-size: 11px; padding: 3px 10px; border-radius: 20px; font-weight: 600; }
.chip-navy { background: rgba(26,79,120,0.08); color: var(--navy); }
.chip-gold { background: var(--gold-pale); color: #0d4a63; }
.chip-green { background: #ecfdf5; color: #065f46; }

/* ── TOOL INTERIOR ── */
.pt-wrap { padding: 20px 24px; }
.search-filter-row { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.pt-search { flex: 1; min-width: 160px; height: 36px; padding: 0 12px; font-size: 13.5px; font-family: 'Inter', sans-serif; border: 1px solid var(--border); border-radius: 6px; color: var(--text-dark); background: var(--white); outline: none; transition: border 0.2s; }
.pt-search:focus { border-color: var(--navy); }
.filter-pills { display: flex; gap: 6px; flex-wrap: wrap; }
.fpill { font-size: 12px; padding: 5px 13px; border: 1px solid var(--border); border-radius: 20px; background: transparent; color: var(--text-mid); cursor: pointer; font-family: 'Inter', sans-serif; font-weight: 500; transition: all 0.15s; }
.fpill:hover { border-color: var(--navy); color: var(--navy); }
.fpill.on { background: var(--navy); border-color: var(--navy); color: var(--white); }

.state-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(138px, 1fr)); gap: 6px; margin-bottom: 20px; }
.state-btn { padding: 8px 10px; font-size: 13px; font-family: 'Inter', sans-serif; border: 1px solid var(--border); border-radius: 8px; background: var(--white); color: var(--text-dark); cursor: pointer; text-align: left; transition: all 0.15s; font-weight: 500; }
.state-btn:hover { border-color: var(--navy-light); background: #f5f8ff; }
.state-btn.active { background: var(--navy); border-color: var(--navy); color: var(--white); }
.state-btn.na { opacity: 0.45; font-style: italic; font-weight: 400; }

/* detail panel */
.detail-panel { background: var(--off-white); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.dp-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.dp-title { font-size: 19px; font-weight: 700; color: var(--text-dark); }
.dp-badges { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.badge-applicable { background: #ecfdf5; color: #065f46; font-size: 11.5px; font-weight: 700; padding: 4px 12px; border-radius: 20px; }
.badge-na { background: #fef2f2; color: #991b1b; font-size: 11.5px; font-weight: 700; padding: 4px 12px; border-radius: 20px; }
.badge-mode { background: rgba(26,79,120,0.07); color: var(--navy); font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: 20px; }

.meta-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; margin-bottom: 18px; }
.meta-tile { background: var(--white); border: 1px solid var(--border); border-radius: 8px; padding: 11px 14px; }
.meta-lbl { font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-light); font-weight: 600; margin-bottom: 4px; }
.meta-val { font-size: 13px; font-weight: 600; color: var(--text-dark); line-height: 1.4; }

.slab-section-title { font-size: 11px; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-light); font-weight: 700; margin-bottom: 8px; }
.slab-note { font-size: 12px; color: var(--text-mid); font-style: italic; margin-bottom: 10px; background: var(--gold-pale); border: 1px solid rgba(50,153,194,0.25); border-radius: 6px; padding: 7px 12px; }

.slab-table { width: 100%; border-collapse: collapse; font-size: 13px; background: var(--white); border-radius: 8px; overflow: hidden; border: 1px solid var(--border); }
.slab-table th { background: var(--navy); color: rgba(255,255,255,0.85); padding: 9px 12px; text-align: left; font-size: 11.5px; font-weight: 600; letter-spacing: 0.03em; }
.slab-table td { padding: 9px 12px; border-top: 1px solid var(--border); color: var(--text-dark); }
.slab-table tr:hover td { background: #f5f8ff; }
.slab-table td:last-child { font-weight: 600; color: var(--navy); }

/* related-tools cards on each dedicated page */
.kb-related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; margin-top: 20px; }
.kb-related-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; text-decoration: none; display: block; transition: border-color .15s ease, box-shadow .15s ease; font-family: 'Inter', sans-serif; }
.kb-related-card:hover { border-color: var(--navy-light); box-shadow: 0 4px 14px rgba(26,79,120,0.1); }
.kb-related-icon { font-size: 22px; margin-bottom: 8px; }
.kb-related-title { font-size: 14px; font-weight: 700; color: var(--text-dark); margin-bottom: 4px; }
.kb-related-desc { font-size: 12px; color: var(--text-mid); line-height: 1.5; }
.kb-related-badge { display: inline-block; margin-top: 8px; font-size: 10.5px; padding: 3px 9px; border-radius: 10px; font-weight: 600; }

/* section divider */
.section-divider { display: flex; align-items: center; gap: 12px; margin: 28px 0 18px; }
.section-divider span { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-light); white-space: nowrap; font-family: 'Inter', sans-serif; }
.section-divider::before, .section-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* hub grid (knowledge.html) */
.kb-hub-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; margin-bottom: 8px; }
.kb-hub-card { display: block; text-decoration: none; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px 24px; transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease; }
.kb-hub-card:hover { border-color: var(--navy-light); box-shadow: 0 8px 22px rgba(26,79,120,0.12); transform: translateY(-2px); }
.kb-hub-card .tool-icon { margin-bottom: 12px; }
.kb-hub-card .tool-title { font-size: 17px; margin-bottom: 6px; }
.kb-hub-card .tool-desc { margin-bottom: 12px; }

/* mobile */
@media (max-width: 600px) {
  .kb-hero h1 { font-size: 26px; }
  .pt-wrap { padding: 14px; }
  .dp-header { flex-direction: column; }
}