/* Extraído de biblioteca-mockup-v2_1.html (versión de referencia validada por Miguel) — no rediseñar desde cero, ver CLAUDE.md */
:root {
  --bg: #0c0e14;
  --surface: #14171f;
  --surface2: #1c2029;
  --surface3: #242834;
  --border: #2a2f3d;
  --text: #e8eaf0;
  --text-dim: #7d8299;
  --text-muted: #545972;
  --accent: #4f8ff7;
  --accent-hover: #3a7ae8;
  --accent-glow: rgba(79,143,247,0.12);
  --amber: #f5a623;
  --green: #2ecc71;
  --red: #e74c3c;
  --purple: #9b7ff0;
  --gold: #d4a853;
  --radius: 12px;
}
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif; background:var(--bg); color:var(--text); line-height:1.6; overflow-x:hidden; }
a { color:var(--accent); text-decoration:none; }

.topnav {
  position:sticky; top:0; z-index:100;
  /* barra blanca para que se vea el logo negro de la web (pedido de Miguel 2026-11-04) */
  --text:#111827; --text-dim:#4b5563; --text-muted:#6b7280; --border:#e5e7eb;
  --surface:#ffffff; --surface2:#f3f4f6; --surface3:#e5e7eb;
  --accent:#2563eb; --accent-hover:#1d4ed8; --accent-glow:rgba(37,99,235,.10);
  background:#ffffff; color:var(--text);
  border-bottom:1px solid var(--border); box-shadow:0 1px 3px rgba(17,24,39,.06);
  padding:0 max(32px, calc((100% - 1180px) / 2 + 32px)); height:60px; /* alineado con el contenido (1180px) */
  display:flex; align-items:center; justify-content:space-between;
}
.topnav-logo { display:flex; align-items:center; gap:10px; }
a.topnav-logo { color:inherit; text-decoration:none; min-width:0; }
.topnav-logo-img { display:block; height:40px; width:auto; max-width:220px; object-fit:contain; }
.topnav-logo-img.invertir { filter:invert(1); }
.topnav-links a.topnav-volver { color:var(--accent); font-weight:600; white-space:nowrap; }
.topnav-volver .tv-corto { display:none; }
.topnav-links a.topnav-volver:hover { color:var(--accent-hover); }
.topnav-logo .icon {
  width:36px; height:36px; background:var(--accent); border-radius:8px;
  display:flex; align-items:center; justify-content:center;
  font-weight:800; font-size:15px; color:#fff;
}
.topnav-logo h1 { font-size:16px; font-weight:700; }
.topnav-logo span { font-size:11px; color:var(--text-dim); margin-left:8px; }
.topnav-links { display:flex; gap:24px; font-size:13px; color:var(--text-dim); }
.topnav-links a { color:var(--text-dim); transition:color .2s; cursor:pointer; }
.topnav-links a:hover, .topnav-links a.act { color:var(--text); }
.topnav-right { display:flex; align-items:center; gap:12px; }

.btn {
  padding:8px 18px; border-radius:8px; font-size:13px; font-weight:600;
  border:none; cursor:pointer; transition:all .2s;
}
.btn-outline { background:transparent; border:1px solid var(--border); color:var(--text); }
.btn-outline:hover { border-color:var(--accent); color:var(--accent); }
.btn-primary { background:var(--accent); color:#fff; }
.btn-primary:hover { background:var(--accent-hover); }
.btn-sm { padding:6px 14px; font-size:12px; }
.btn-lg { padding:12px 28px; font-size:15px; }

.user-avatar {
  width:34px; height:34px; border-radius:50%; background:var(--accent);
  display:flex; align-items:center; justify-content:center;
  font-weight:700; font-size:13px; color:#fff;
}

.modal-overlay {
  display:none; position:fixed; inset:0; z-index:300;
  background:rgba(0,0,0,0.7); backdrop-filter:blur(6px);
  align-items:center; justify-content:center;
}
.modal-overlay.show { display:flex; }
.modal {
  background:var(--surface); border:1px solid var(--border); border-radius:18px;
  width:460px; max-width:92vw; max-height:90vh; overflow-y:auto;
  box-shadow:0 24px 64px rgba(0,0,0,0.5);
}
.modal-close {
  position:absolute; top:16px; right:18px; background:none; border:none;
  color:var(--text-dim); font-size:20px; cursor:pointer;
}

.login-modal { position:relative; }
.login-header { padding:32px 32px 0; text-align:center; }
.login-header .lm-icon {
  width:56px; height:56px; background:var(--accent-glow); border:1px solid rgba(79,143,247,0.2);
  border-radius:14px; display:inline-flex; align-items:center; justify-content:center;
  font-size:26px; margin-bottom:14px;
}
.login-header h3 { font-size:20px; font-weight:700; margin-bottom:6px; }
.login-header p { font-size:13px; color:var(--text-dim); }
.login-body { padding:24px 32px 32px; }
.login-divider { display:flex; align-items:center; gap:12px; margin:20px 0; font-size:12px; color:var(--text-muted); }
.login-divider .line { flex:1; height:1px; background:var(--border); }

.modal-pricing { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-top:8px; }
.mp-card {
  background:var(--surface2); border:1px solid var(--border); border-radius:12px;
  padding:18px; cursor:pointer; transition:all .2s; position:relative;
}
.mp-card:hover { border-color:var(--accent); }
.mp-card.feat { border-color:var(--gold); }
.mp-card .mp-badge {
  position:absolute; top:-8px; right:12px; background:var(--gold); color:#1a1200;
  padding:2px 10px; border-radius:10px; font-size:10px; font-weight:700;
}
.mp-card .mp-name { font-size:13px; font-weight:700; margin-bottom:2px; }
.mp-card .mp-price { font-size:24px; font-weight:800; margin-bottom:2px; }
.mp-card .mp-price span { font-size:12px; font-weight:400; color:var(--text-dim); }
.mp-card .mp-feat { font-size:11px; color:var(--text-dim); margin:3px 0; padding-left:14px; position:relative; }
.mp-card .mp-feat::before { content:'✓'; position:absolute; left:0; color:var(--green); font-size:10px; }
.mp-card .mp-div { height:1px; background:var(--border); margin:10px 0; }

.context-hint {
  background:var(--surface2); border:1px solid var(--border); border-radius:10px;
  padding:12px 16px; margin-bottom:18px; display:flex; align-items:center; gap:10px;
}
.context-hint .ch-icon { font-size:20px; flex-shrink:0; }
.context-hint .ch-text { font-size:12px; color:var(--text-dim); }
.context-hint .ch-text strong { color:var(--text); }

.manual-header { padding:0 32px; border-bottom:1px solid var(--border); }
.manual-title-row { display:flex; align-items:flex-start; justify-content:space-between; padding:20px 0 16px; flex-wrap:wrap; gap:12px; }
.manual-title-row h2 { font-size:22px; font-weight:800; }
.manual-title-row .subtitle { font-size:13px; color:var(--text-dim); margin-top:2px; }
.manual-stats { display:flex; gap:14px; }
.manual-stat { text-align:center; padding:8px 14px; background:var(--surface); border:1px solid var(--border); border-radius:10px; }
.manual-stat .n { font-size:18px; font-weight:800; color:var(--accent); }
.manual-stat .l { font-size:9px; color:var(--text-dim); text-transform:uppercase; }

.manual-tabs { display:flex; gap:0; overflow-x:auto; }
.manual-tab {
  padding:12px 18px; font-size:12px; font-weight:500; color:var(--text-dim);
  border-bottom:2px solid transparent; cursor:pointer; white-space:nowrap; transition:all .2s;
}
.manual-tab:hover { color:var(--text); }
.manual-tab.active { color:var(--accent); border-bottom-color:var(--accent); }
.manual-tab .cnt { background:var(--surface3); padding:1px 6px; border-radius:10px; font-size:10px; margin-left:4px; }
.manual-tab.active .cnt { background:var(--accent-glow); color:var(--accent); }

.manual-content { max-width:1200px; margin:0 auto; padding:28px 32px; }

.cat-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin-bottom:28px; }
.cat-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:18px; cursor:pointer; transition:all .2s; }
.cat-card:hover { border-color:var(--accent); background:var(--surface2); }
.cat-card.active { border-color:var(--accent); background:var(--accent-glow); }
.cat-card .cat-icon { color:var(--accent); margin-bottom:10px; }
.cat-card .cat-icon svg { width:24px; height:24px; display:block; }
.cat-card h4 { font-size:14px; font-weight:600; margin-bottom:4px; }
.cat-card p { font-size:11px; color:var(--text-dim); line-height:1.5; margin-bottom:10px; }
.cat-card .cat-count { font-size:11px; color:var(--accent); font-weight:600; }

/* Sección "gancho" de subsistemas — diseño aprobado 2026-09-22, ver bt_teaser_subsystems() en helpers.php */
.subsys-block { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:24px; margin-bottom:16px; }
.subsys-head { margin-bottom:20px; }
.subsys-eyebrow { font-size:11px; font-weight:700; letter-spacing:.06em; text-transform:uppercase; color:var(--accent); margin-bottom:6px; }
.subsys-head h4 { font-size:17px; font-weight:700; margin-bottom:4px; }
.subsys-head p { font-size:12px; color:var(--text-dim); }
.subsys-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; }
.subsys-card { display:block; text-align:left; background:var(--surface2); border:1px solid var(--border); border-radius:var(--radius); padding:18px; cursor:pointer; transition:all .2s; }
.subsys-card:hover { border-color:var(--accent); background:var(--surface3); }
.subsys-card.active { border-color:var(--accent); background:var(--accent-glow); }
.subsys-card .sc-top { display:flex; align-items:flex-start; justify-content:space-between; gap:8px; margin-bottom:8px; }
.subsys-card h5 { font-size:13.5px; font-weight:600; line-height:1.35; }
.subsys-card .sc-arrow { color:var(--accent); font-size:16px; flex-shrink:0; }
.subsys-card p { font-size:11.5px; color:var(--text-dim); line-height:1.5; margin-bottom:14px; min-height:32px; }
.subsys-card .sc-chip { display:inline-block; font-size:11px; font-weight:600; color:var(--accent); background:var(--accent-glow); border:1px solid rgba(79,143,247,0.25); border-radius:999px; padding:3px 11px; }
.subsys-more { display:flex; justify-content:center; margin-top:20px; }
.subsys-more-link { display:inline-flex; align-items:center; gap:6px; font-size:13px; font-weight:600; color:var(--accent); padding:10px 20px; border:1px solid rgba(79,143,247,0.3); border-radius:10px; background:var(--accent-glow); cursor:pointer; transition:all .2s; }
.subsys-more-link:hover { background:rgba(79,143,247,0.2); border-color:var(--accent); }

.viewer { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); margin-bottom:20px; overflow:hidden; }
.viewer-toolbar { display:flex; align-items:center; justify-content:space-between; padding:12px 20px; border-bottom:1px solid var(--border); flex-wrap:wrap; gap:8px; }
.viewer-toolbar .vt-title { font-size:14px; font-weight:600; }
.viewer-toolbar .vt-controls { display:flex; gap:6px; }
.viewer-toolbar .vt-btn { padding:5px 12px; background:var(--surface3); border:1px solid var(--border); border-radius:6px; color:var(--text-dim); font-size:11px; cursor:pointer; }
.viewer-toolbar .vt-btn:hover { color:var(--text); border-color:var(--accent); }
.viewer-body { padding:24px; display:flex; align-items:center; justify-content:center; min-height:300px; overflow:auto; }
.viewer-body img, .viewer-body iframe { max-width:100%; }
.viewer-body iframe { width:100%; height:70vh; border:none; background:#fff; border-radius:8px; }
.viewer-body .bt-loading, .viewer-body .bt-error { color:var(--text-dim); font-size:13px; text-align:center; }
.viewer-body .bt-error { color:var(--red); }

.selector-hero { text-align:center; padding:48px 24px 32px; background:radial-gradient(ellipse at 50% 0%, rgba(79,143,247,0.06) 0%, transparent 60%); }
.selector-hero h2 { font-size:28px; font-weight:700; margin-bottom:8px; }
.selector-hero p { color:var(--text-dim); font-size:14px; }
.search-box { max-width:560px; margin:24px auto 0; position:relative; }
.search-box input { width:100%; padding:14px 18px 14px 44px; background:var(--surface2); border:1px solid var(--border); border-radius:12px; color:var(--text); font-size:15px; outline:none; transition:border-color .2s; }
.search-box input:focus { border-color:var(--accent); }
.search-box .ico { position:absolute; left:16px; top:50%; transform:translateY(-50%); font-size:18px; opacity:.4; }

.filter-row { display:flex; gap:8px; justify-content:center; flex-wrap:wrap; max-width:700px; margin:20px auto 0; }
.pill { padding:7px 16px; border-radius:20px; font-size:12px; font-weight:600; background:var(--surface2); border:1px solid var(--border); color:var(--text-dim); cursor:pointer; transition:all .2s; }
.pill:hover, .pill.active { background:var(--accent-glow); border-color:var(--accent); color:var(--accent); }

.filter-panel { max-width:720px; margin:28px auto 0; background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:20px; }
.filter-panel .fp-label { font-size:11px; font-weight:700; color:var(--text-dim); text-transform:uppercase; letter-spacing:.6px; margin-bottom:12px; }
.cascade-row { display:flex; gap:12px; flex-wrap:wrap; }
.cascade-field { flex:1; min-width:200px; position:relative; }
.cascade-field label { display:block; font-size:11px; color:var(--text-dim); margin-bottom:6px; font-weight:600; }
.cascade-field select {
  width:100%; appearance:none; -webkit-appearance:none;
  background:var(--surface2); border:1px solid var(--border); border-radius:10px;
  color:var(--text); font-size:14px; padding:12px 40px 12px 14px; font-family:inherit; cursor:pointer;
}
.cascade-field select:focus { outline:none; border-color:var(--accent); }
.cascade-field select:disabled { opacity:.45; cursor:not-allowed; }
.cascade-field .arrow { position:absolute; right:14px; bottom:13px; pointer-events:none; color:var(--text-dim); font-size:11px; }
.cascade-clear { margin-top:14px; font-size:12.5px; color:var(--accent); cursor:pointer; background:none; border:none; padding:0; display:none; font-family:inherit; }
.cascade-clear.show { display:inline-block; }

.search-divider { display:flex; align-items:center; gap:10px; margin:18px 0 16px; font-size:11px; color:var(--text-muted); text-transform:uppercase; letter-spacing:.5px; }
.search-divider .line { flex:1; height:1px; background:var(--border); }
.filter-panel .search-box { margin:0; max-width:none; }
.filter-panel .search-box input { padding:12px 16px 12px 40px; font-size:14px; }

.result-meta { max-width:720px; margin:18px auto 0; padding:0 24px; font-size:12.5px; color:var(--text-dim); }
.result-meta .count strong { color:var(--text); }

.shelf-section { max-width:1100px; margin:0 auto; padding:36px 24px; }
.shelf-label { font-size:13px; font-weight:700; color:var(--text-dim); text-transform:uppercase; letter-spacing:.8px; margin-bottom:16px; display:flex; align-items:center; gap:8px; }
.shelf-label .line { flex:1; height:1px; background:var(--border); }

.shelf-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-bottom:36px; }
.book-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); overflow:hidden; cursor:pointer; transition:all .25s; }
.book-card:hover { border-color:var(--accent); transform:translateY(-3px); box-shadow:0 12px 32px rgba(0,0,0,0.35); }
.book-spine { height:6px; width:100%; background:linear-gradient(90deg,var(--accent),var(--accent-hover)); }
.book-body { padding:16px; }
.book-body .make { font-size:10px; font-weight:700; text-transform:uppercase; letter-spacing:.8px; color:var(--text-dim); margin-bottom:4px; }
.book-body .model { font-size:15px; font-weight:700; margin-bottom:2px; }
.book-body .year-engine { font-size:12px; color:var(--text-dim); margin-bottom:12px; }
.book-meta { display:flex; gap:6px; flex-wrap:wrap; }
.book-meta .chip { padding:3px 8px; border-radius:6px; font-size:10px; font-weight:600; background:var(--surface3); color:var(--text-dim); }

.brand-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(160px,1fr)); gap:12px; }
.brand-card {
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius);
  padding:18px 16px; text-align:center; cursor:pointer; transition:all .15s;
}
.brand-card.has-content { border-color:var(--accent); }
.brand-card.has-content:hover { background:var(--surface2); transform:translateY(-2px); }
.brand-card .name { font-size:14px; font-weight:700; margin-bottom:6px; }
.brand-card .count { font-size:11px; color:var(--accent); font-weight:600; }
.brand-card.placeholder { border-style:dashed; cursor:default; }
.brand-card.placeholder .name { color:var(--text-dim); }
.brand-card.placeholder .ph-label { font-size:10.5px; color:var(--text-muted); margin-bottom:10px; }
.brand-card.placeholder .wa-link {
  display:inline-flex; align-items:center; gap:4px; padding:5px 10px; border-radius:7px;
  font-size:10.5px; font-weight:600; background:rgba(46,204,113,0.12); border:1px solid rgba(46,204,113,0.3); color:var(--green);
}
.brand-card.placeholder .wa-link:hover { background:rgba(46,204,113,0.2); }

.book-card.placeholder { border-style:dashed; cursor:default; }
.book-card.placeholder:hover { border-color:var(--border); transform:none; }
.book-card.placeholder .book-spine { background:var(--border); }
.book-card.placeholder .book-body { text-align:center; padding:22px 16px; }
.book-card.placeholder .ph-icon { font-size:20px; color:var(--text-muted); margin-bottom:8px; }
.book-card.placeholder .model { color:var(--text-dim); }
.book-card.placeholder .ph-sub { font-size:11.5px; color:var(--text-muted); margin:4px 0 12px; }
.book-card.placeholder .wa-link {
  display:inline-flex; align-items:center; gap:5px;
  padding:6px 12px; border-radius:8px; font-size:11.5px; font-weight:600;
  background:rgba(46,204,113,0.12); border:1px solid rgba(46,204,113,0.3); color:var(--green);
}
.book-card.placeholder .wa-link:hover { background:rgba(46,204,113,0.2); }

.empty-cta {
  max-width:520px; margin:40px auto; text-align:center;
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius);
  padding:32px 24px;
}
.empty-cta .ph-icon { font-size:26px; margin-bottom:10px; }
.empty-cta h4 { font-size:16px; font-weight:700; margin-bottom:6px; }
.empty-cta p { font-size:13px; color:var(--text-dim); margin-bottom:18px; }

.manual-breadcrumb { font-size:12px; color:var(--text-dim); padding:16px 32px 0; }
.manual-breadcrumb a { color:var(--accent); cursor:pointer; }

.cta-banner {
  background:linear-gradient(135deg, rgba(79,143,247,0.1) 0%, rgba(155,127,240,0.08) 100%);
  border:1px solid rgba(79,143,247,0.2); border-radius:14px;
  padding:28px 32px; text-align:center; margin-top:8px; margin-bottom:24px;
}
.cta-banner h3 { font-size:18px; font-weight:700; margin-bottom:6px; }
.cta-banner p { font-size:13px; color:var(--text-dim); margin-bottom:16px; }
.cta-banner .cta-btns { display:flex; gap:10px; justify-content:center; flex-wrap:wrap; }

.footer { text-align:center; padding:28px; color:var(--text-muted); font-size:11px; border-top:1px solid var(--border); margin-top:40px; }

@media(max-width:768px) {
  .topnav { padding:0 16px; }
  .topnav-links { gap:0; margin:0 auto 0 12px; }
  .topnav-links a:not(.topnav-volver) { display:none; }
  .topnav-logo span { display:none; }
  .topnav-logo-img { height:32px; max-width:140px; }
  .topnav-volver .tv-largo { display:none; }
  .topnav-volver .tv-corto { display:inline; }
  .cat-grid { grid-template-columns:1fr; }
  .subsys-grid { grid-template-columns:1fr; }
  .shelf-grid { grid-template-columns:repeat(2,1fr); }
  .manual-stats { gap:8px; }
  .manual-stat { padding:6px 10px; }
  .modal-pricing { grid-template-columns:1fr; }
  .manual-content { padding:20px 16px; }
}

/* ===== Explorador (vehículos en paquete) — índice por sistema + visor grande.
   Mockup aprobado 2026-10-13: biblioteca-mockup-v4-navegacion.html ===== */
.bt-explorer { display:grid; grid-template-columns:320px minmax(0,1fr); gap:18px; align-items:start; margin-bottom:24px; scroll-margin-top:72px; }
.bt-index { position:sticky; top:72px; max-height:calc(100vh - 88px); display:flex; flex-direction:column; background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); overflow:hidden; }
.bt-index-head { padding:14px 14px 10px; border-bottom:1px solid var(--border); display:grid; gap:8px; }
.bt-index-title { font-size:13px; font-weight:600; }
.bt-search { width:100%; background:var(--surface2); border:1px solid var(--border); border-radius:8px; color:var(--text); padding:8px 10px; font-size:13px; font-family:inherit; }
.bt-search::placeholder { color:var(--text-muted); }
.bt-index-list { overflow-y:auto; padding:6px 0 10px; }
.bt-grp { border-bottom:1px solid rgba(42,47,61,.6); }
.bt-grp-btn { width:100%; display:flex; justify-content:space-between; align-items:center; gap:8px; background:none; border:0; color:var(--text); padding:10px 14px; font-size:12px; font-weight:600; letter-spacing:.04em; text-transform:uppercase; cursor:pointer; text-align:left; font-family:inherit; }
.bt-grp-n { color:var(--text-muted); font-weight:500; white-space:nowrap; }
.bt-chev { display:inline-block; transition:transform .15s; }
.bt-grp.closed .bt-chev { transform:rotate(-90deg); }
.bt-grp.closed .bt-items { display:none; }
.bt-items { list-style:none; margin:0; padding:0 0 6px; }
.bt-item { width:100%; display:flex; justify-content:space-between; align-items:center; gap:8px; background:none; border:0; border-left:2px solid transparent; color:var(--text-dim); padding:7px 14px 7px 22px; font-size:13px; cursor:pointer; text-align:left; font-family:inherit; }
.bt-item:hover { color:var(--text); background:var(--surface2); }
.bt-item.on { color:var(--text); background:var(--accent-glow); border-left-color:var(--accent); }
.bt-item-txt { display:flex; flex-direction:column; min-width:0; }
.bt-item-c { font-size:11px; color:var(--text-muted); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.bt-parts { flex:none; font-size:10.5px; color:var(--accent); background:var(--accent-glow); border-radius:10px; padding:1px 7px; }
.bt-guides { margin:10px 12px 4px; padding:8px 0; border:1px dashed var(--border); border-radius:10px; }
.bt-guides-t { font-size:11px; font-weight:600; letter-spacing:.04em; text-transform:uppercase; color:var(--text-dim); padding:2px 12px 6px; }
.bt-item-guide { padding-left:12px; }
.bt-empty { padding:16px; color:var(--text-dim); font-size:13px; }

.bt-doc { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); min-width:0; }
.bt-doc:fullscreen { overflow:auto; border-radius:0; }
.bt-doc-bar { display:flex; flex-wrap:wrap; justify-content:space-between; align-items:center; gap:10px; padding:12px 16px; border-bottom:1px solid var(--border); }
.bt-doc-head { min-width:0; }
.bt-doc-where { font-size:12px; color:var(--text-dim); }
.bt-doc-title { margin:2px 0 0; font-size:17px; font-weight:600; }
.bt-doc-ctl, .bt-ctl { display:flex; flex-wrap:wrap; gap:6px; align-items:center; }
.bt-ctl[hidden] { display:none; }
.bt-btn { background:var(--surface3); border:1px solid var(--border); color:var(--text-dim); border-radius:7px; padding:6px 11px; font-size:12px; cursor:pointer; font-family:inherit; }
.bt-btn:hover { color:var(--text); border-color:var(--accent); }
.bt-btn:disabled { opacity:.4; cursor:default; }
.bt-btn-primary { background:var(--accent); border-color:var(--accent); color:#fff; }
.bt-sep { width:1px; height:22px; background:var(--border); margin:0 4px; }
.bt-part-lbl { font-size:12px; color:var(--text); padding:0 4px; }
.bt-stage { padding:20px; background:var(--surface2); overflow-x:auto; border-radius:0 0 var(--radius) var(--radius); }
/* La hoja es HTML real del manual (no un iframe): crece con su contenido y se recorre con el scroll de la página */
.bt-sheet { background:#fff; color:#1a1a1a; border-radius:8px; padding:20px 22px; margin:0 auto; line-height:1.45; font-size:14px; }
.bt-sheet h3 { font-size:14px; margin:18px 0 8px; color:#1a1a1a; }
.bt-sheet h3:first-child { margin-top:0; }
.bt-sheet img { max-width:100%; height:auto; }
.bt-sheet img.big-img { display:block; width:100%; max-width:none; } /* diagramas: a todo el ancho de la hoja (el zoom agranda la hoja) */
.bt-sheet table { border-collapse:collapse; max-width:100%; }
.bt-sheet td, .bt-sheet th { border:1px solid #ccc; padding:4px 6px; }
.bt-sheet a { color:#1f5fd1; text-decoration:underline; }
.bt-sheet-msg { color:#5b6070; font-size:14px; text-align:center; padding:48px 12px; }

@media (max-width:900px) {
	.bt-explorer { grid-template-columns:minmax(0,1fr); }
	.bt-index { position:static; max-height:420px; }
}

/* ===== Menú del usuario (barra superior) — 2026-10-14 ===== */
.bt-user { position:relative; }
.bt-user-btn { display:flex; align-items:center; gap:10px; background:none; border:1px solid transparent; border-radius:22px; padding:3px 8px 3px 12px; color:var(--text-dim); cursor:pointer; font-family:inherit; font-size:12px; }
.bt-user-btn:hover, .bt-user-btn[aria-expanded="true"] { border-color:var(--border); background:var(--surface2); color:var(--text); }
.bt-user-btn:focus-visible { outline:2px solid var(--accent); outline-offset:2px; }
.bt-user-chev { font-size:10px; color:var(--text-muted); }
.bt-user-drop { position:absolute; right:0; top:calc(100% + 8px); min-width:240px; background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); box-shadow:0 12px 32px rgba(17,24,39,.16); padding:6px; z-index:200; }
.bt-user-drop[hidden] { display:none; }
.bt-user-head { display:flex; flex-direction:column; gap:2px; padding:10px 12px 12px; border-bottom:1px solid var(--border); margin-bottom:6px; }
.bt-user-head strong { font-size:14px; color:var(--text); }
.bt-user-head span { font-size:12px; color:var(--text-dim); overflow:hidden; text-overflow:ellipsis; }
.bt-user-plan { margin-top:6px; align-self:flex-start; font-size:11px !important; padding:2px 8px; border-radius:10px; background:var(--surface3); }
.bt-user-plan.on { background:var(--accent-glow); color:var(--accent) !important; }
.bt-user-item { display:block; padding:9px 12px; border-radius:8px; font-size:13px; color:var(--text); }
.bt-user-item:hover { background:var(--surface2); color:var(--text); }
.bt-user-out { color:var(--red); margin-top:4px; border-top:1px solid var(--border); border-radius:0 0 8px 8px; }
.bt-user-out:hover { color:var(--red); }
@media (max-width:600px) { .bt-user-name { display:none; } }

/* ===== Login dentro del modal (subtarea 3.5, 2026-10-17) ===== */
.bt-auth-form { display:grid; gap:12px; }
.bt-field { display:grid; gap:6px; font-size:12.5px; color:var(--text-dim); }
.bt-field input { width:100%; box-sizing:border-box; background:var(--surface2); border:1px solid var(--border); border-radius:8px; padding:11px 12px; color:var(--text); font-size:14px; font-family:inherit; }
.bt-field input:focus { outline:none; border-color:var(--accent); box-shadow:0 0 0 3px var(--accent-glow); }
.bt-auth-row { display:flex; justify-content:space-between; align-items:center; gap:10px; flex-wrap:wrap; font-size:12.5px; }
.bt-check { display:flex; align-items:center; gap:6px; color:var(--text-dim); cursor:pointer; }
.bt-auth-link { color:var(--accent); font-size:12.5px; }
.bt-auth-msg { margin:0; min-height:0; font-size:12.5px; color:var(--red); }
.bt-auth-msg:empty { display:none; }
.bt-auth-msg.ok { color:var(--green); }
.bt-auth-btn { width:100%; padding:12px; }
.bt-auth-btn:disabled { opacity:.6; cursor:default; }
.bt-plan-btns { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-top:16px; }
.bt-plan-btns .btn { display:block; text-align:center; padding:12px; box-sizing:border-box; }
@media (max-width:600px) { .bt-plan-btns { grid-template-columns:1fr; } }

/* ===== Descarga PDF (solo equipo Interno) — 2026-10-20 ===== */
.bt-dl { position:fixed; inset:0; background:rgba(0,0,0,.6); display:flex; align-items:center; justify-content:center; z-index:300; padding:16px; }
.bt-dl-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:20px 22px; max-width:460px; width:100%; display:grid; gap:12px; }
.bt-dl-card h4 { margin:0; font-size:16px; }
.bt-dl-card label { display:flex; gap:8px; align-items:flex-start; font-size:13.5px; color:var(--text); cursor:pointer; }
.bt-dl-card label b { font-weight:600; }
.bt-dl-msg { margin:0; font-size:12.5px; color:var(--text-dim); }
.bt-dl-acc { display:flex; gap:8px; justify-content:flex-end; }

/* ---- Planes en el modal: 3 planes, uno debajo de otro (2026-11-03) ---- */
.modal-pricing.tres { grid-template-columns:1fr; gap:14px; }
.modal-pricing.tres .mp-card { display:block; color:var(--text); text-decoration:none; }
.modal-pricing.tres .mp-feat { display:inline-block; margin:3px 12px 3px 0; }
.modal-pricing.tres .mp-btn { display:block; text-align:center; padding:9px; margin-top:10px; font-size:13px; }
.mp-card .mp-badge.azul { background:var(--accent); color:#fff; }

/* ---- Mis solicitudes (Taller Pro, 2026-11-03) ---- */
.bt-sol { max-width:1080px; margin:0 auto; padding:40px 24px 24px; display:flex; flex-direction:column; gap:20px; }
.bt-sol-head h2 { font-size:28px; font-weight:800; margin:4px 0 6px; }
.bt-sol-head p { color:var(--text-dim); font-size:15px; max-width:720px; }
.bt-sol-eyebrow { font-size:12px; letter-spacing:.12em; text-transform:uppercase; color:var(--gold); font-weight:700; }
.bt-sol-card { background:var(--surface); border:1px solid var(--border); border-radius:14px; padding:22px; }
.bt-sol-center { text-align:center; display:flex; flex-direction:column; align-items:center; gap:12px; }
.bt-sol-center p { color:var(--text-dim); max-width:560px; }
.bt-sol-center .btn { padding:12px 22px; }
.bt-sol-grid { display:grid; grid-template-columns:minmax(0,2fr) minmax(0,1fr); gap:20px; align-items:start; }
.bt-sol-form { display:flex; flex-direction:column; gap:14px; }
.bt-sol-form label { display:flex; flex-direction:column; gap:5px; font-size:12.5px; color:var(--text-dim); }
.bt-sol-form input, .bt-sol-form select { background:var(--bg); border:1px solid var(--border); border-radius:8px; padding:10px; color:var(--text); font-size:14px; font-family:inherit; }
.bt-sol-form input:focus, .bt-sol-form select:focus { outline:2px solid var(--accent); outline-offset:1px; }
.bt-sol-form .btn { padding:13px; font-size:15px; font-weight:700; }
.bt-sol-form .btn:disabled { opacity:.5; cursor:not-allowed; }
.bt-sol-fields { display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:10px; }
.bt-sol-formhead { display:flex; justify-content:space-between; align-items:center; gap:10px; flex-wrap:wrap; }
.bt-sol-chip { font-size:13px; background:var(--surface3); border-radius:999px; padding:5px 12px; }
.bt-sol-chip b { color:var(--accent); }
.bt-sol-bar { height:6px; border-radius:99px; background:var(--surface3); overflow:hidden; }
.bt-sol-bar span { display:block; height:100%; background:var(--accent); }
.bt-sol-nota { font-size:12.5px; color:var(--text-dim); line-height:1.5; }
.bt-sol-saldo { text-align:center; display:flex; flex-direction:column; gap:6px; }
.bt-sol-saldo .big { font-size:52px; font-weight:800; color:var(--accent); line-height:1; }
.bt-sol-h3 { font-size:17px; margin-bottom:12px; }
.bt-sol .dim { color:var(--text-dim); font-size:13px; }
.bt-sol-tablewrap { overflow-x:auto; }
.bt-sol-table { width:100%; min-width:640px; border-collapse:collapse; font-size:14px; }
.bt-sol-table th { text-align:left; color:var(--text-dim); font-weight:600; padding:10px 12px; }
.bt-sol-table td { padding:12px; border-top:1px solid var(--border); }
.bt-sol-estado { display:inline-block; border-radius:999px; padding:3px 10px; font-size:12.5px; font-weight:600; white-space:nowrap; }
.bt-sol-table td:first-child { white-space:nowrap; }
.bt-sol-estado.pendiente { background:#2a2410; color:#f0d79a; }
.bt-sol-estado.entregada { background:#123024; color:#8fe0b0; }
.bt-sol-estado.no_disponible { background:var(--surface3); color:#b8bfcc; }
.bt-sol-msg { border-radius:10px; padding:12px 16px; font-size:14px; }
.bt-sol-msg.ok { background:#123024; color:#8fe0b0; }
.bt-sol-msg.err { background:#3a1717; color:#ffb3a8; }
.bt-sr { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; }
.bt-sol > *, .bt-sol-grid > *, .bt-sol-fields > * { min-width:0; }
.bt-sol-form input, .bt-sol-form select { width:100%; min-width:0; }
@media (max-width:760px) {
  .bt-sol-grid { grid-template-columns:1fr; }
  .bt-sol { padding:24px 16px; }
  /* historial como tarjetas apiladas: en el celular la tabla no cabe */
  .bt-sol-table { min-width:0; }
  .bt-sol-table thead { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); }
  .bt-sol-table tr { display:block; padding:12px 0; border-top:1px solid var(--border); }
  .bt-sol-table td { display:block; border:0; padding:2px 0; }
  .bt-sol-table td:first-child { color:var(--text-dim); font-size:12.5px; }
}