:root {
  /* Identidad BIM Analytics (Cloud Design) */
  --bg: #060912;          /* navy casi negro */
  --bg-soft: #0a0f1d;     /* navy elevado */
  --panel: #0b1322;       /* superficie de paneles */
  --line: rgba(120,165,255,.16);   /* bordes azulados translúcidos */
  --line-2: rgba(120,165,255,.28);
  --text: #e8eef9;
  --muted: #93a0ba;
  --accent: #3b82f6;      /* azul primario */
  --accent-2: #22d3ee;    /* cyan (acentos/focus) */
  --violet: #8b5cf6;
  --ok: #34d399;
  --warn: #f5aa42;
  --error: #f87171;
  --busy: #3b82f6;
  --grad: linear-gradient(120deg, #22d3ee 0%, #3b82f6 50%, #8b5cf6 100%);
  --glow: 0 0 40px rgba(59,130,246,.35);
  --shadow-btn: 0 8px 26px rgba(59,130,246,.40);
  --font-head: "Sora", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
}

body { display: flex; flex-direction: column; height: 100vh; }

/* ─── Barra superior ─────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 18px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  flex: 0 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { height: 26px; width: auto; display: block; filter: drop-shadow(0 0 8px rgba(34,211,238,.35)); }
.brand-text { font-family: var(--font-head); font-size: 16px; font-weight: 700; letter-spacing: .3px; color: var(--text); }
.brand-text strong { color: var(--accent-2); font-weight: 800; }
/* Tipografía de marca en títulos */
.home-hero h1, .home-section-title, .kpi-num, .home-stat-n, .dd-tab, .ptab { font-family: var(--font-head); }

.top-actions { display: flex; align-items: center; gap: 14px; }
.status { font-size: 13px; color: var(--muted); text-align: right; min-width: 140px; }
.status.busy { color: var(--busy); }
.status.ok { color: var(--ok); }
.status.warn { color: var(--warn); }
.status.error { color: var(--error); }

.btn-data {
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 7px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.btn-data:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.btn-data:disabled { opacity: .4; cursor: not-allowed; }

/* Menú de vistas guardadas */
.views-wrap { position: relative; }
.views-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  width: 260px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px;
  z-index: 40;
  box-shadow: 0 10px 30px rgba(0,0,0,.5);
}
.views-save {
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 6px;
}
.views-save:hover { filter: brightness(1.1); }
.views-list { list-style: none; margin: 0; padding: 0; max-height: 280px; overflow-y: auto; }
.view-empty { color: var(--muted); font-size: 12.5px; padding: 8px; }
.view-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: 6px;
  cursor: pointer;
}
.view-item:hover { background: var(--panel); }
.view-name { flex: 1 1 auto; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.view-del { background: transparent; border: none; color: var(--muted); cursor: pointer; opacity: 0; font-size: 13px; }
.view-item:hover .view-del { opacity: 1; }
.view-del:hover { color: var(--error); }

/* ─── Layout principal (3 columnas) ──────────────────────────── */
.layout { flex: 1 1 auto; display: flex; min-height: 0; }

/* Barra lateral de modelos */
.sidebar {
  flex: 0 0 260px;
  background: var(--panel);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 8px;
}
.sidebar-head h2 {
  margin: 0;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--muted);
}
.ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  border-radius: 6px;
  width: 28px; height: 28px;
  cursor: pointer;
  font-size: 15px;
}
.ghost:hover { color: var(--text); border-color: var(--accent); }

.file-label {
  display: inline-block;
  padding: 9px 16px;
  text-align: center;
  background: var(--grad);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: var(--shadow-btn);
  transition: transform .15s, filter .15s;
}
.file-label:hover { filter: brightness(1.08); transform: translateY(-1px); }

.model-list { list-style: none; margin: 0; padding: 0 8px 12px; overflow-y: auto; flex: 1 1 auto; }
.ml-empty { color: var(--muted); font-size: 13px; padding: 12px 8px; }

.model-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border-radius: 7px;
  cursor: pointer;
  border: 1px solid transparent;
}
.model-item:hover { background: var(--bg-soft); }
.model-item.active { background: var(--bg-soft); border-color: var(--accent); }

.model-main { flex: 1 1 auto; min-width: 0; }
.model-name {
  display: block;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.badge {
  display: inline-block;
  margin-top: 3px;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: .4px;
  padding: 1px 7px;
  border-radius: 999px;
  font-weight: 600;
}
.badge-ok { background: rgba(53,196,107,.15); color: var(--ok); }
.badge-busy { background: rgba(59,156,255,.15); color: var(--busy); }
.badge-error { background: rgba(239,91,91,.15); color: var(--error); }
.badge-unknown { background: rgba(139,147,163,.15); color: var(--muted); }

.model-chk { flex: 0 0 auto; margin: 0; accent-color: var(--accent); pointer-events: none; }
.model-item.loaded { background: var(--bg-soft); border-color: rgba(59,156,255,.4); }

.model-del, .model-export {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  opacity: 0;
  flex: 0 0 auto;
  padding: 0 2px;
}
.model-item:hover .model-del,
.model-item:hover .model-export { opacity: 1; }
.model-del:hover { color: var(--error); }
.model-export:hover { color: var(--accent); }

/* Visor */
.viewer { position: relative; flex: 1 1 auto; background: #000; }

/* Panel de propiedades */
.panel {
  flex: 0 0 340px;
  background: var(--panel);
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.panel-header { padding: 14px 16px; border-bottom: 1px solid var(--line); }
.panel-header h2 { margin: 0 0 2px; font-size: 13px; text-transform: uppercase; letter-spacing: .8px; color: var(--muted); }
.sel-submodel { display: block; font-size: 11.5px; color: var(--accent); margin-bottom: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sel-submodel:empty { display: none; }
.sel-name { font-size: 14px; font-weight: 600; color: var(--text); word-break: break-word; }

.props { flex: 1 1 auto; overflow-y: auto; padding: 8px 0; }
.props .empty { color: var(--muted); font-size: 13px; padding: 16px; line-height: 1.5; }

.prop-group { margin-bottom: 6px; }
.prop-cat {
  position: sticky; top: 0;
  background: var(--bg-soft);
  color: var(--accent);
  font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .5px;
  padding: 6px 16px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.props table { width: 100%; border-collapse: collapse; }
.props td { padding: 5px 16px; font-size: 13px; vertical-align: top; border-bottom: 1px solid rgba(255,255,255,.04); }
.props td.k { color: var(--muted); width: 45%; }
.props td.v { color: var(--text); word-break: break-word; }

/* ─── Panel derecho: Datos y análisis (ancho ajustable) ──────── */
.data-panel {
  position: relative;
  flex: 0 0 auto;
  width: 38%;
  min-width: 320px;
  max-width: 85%;
  background: var(--panel);
  border-left: 1px solid var(--accent);
  display: flex;
  min-height: 0;
}
.data-panel[hidden] { display: none; }
.dp-inner { flex: 1 1 auto; display: flex; flex-direction: column; min-height: 0; overflow: hidden; }

/* Tirador de ancho (borde izquierdo) */
.dp-resize {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 7px;
  cursor: ew-resize;
  z-index: 5;
}
.dp-resize::after {
  content: "";
  position: absolute;
  left: 2px; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 46px;
  border-radius: 3px;
  background: var(--line);
}
.dp-resize:hover::after { background: var(--accent); }

/* Panel izquierdo (espejo del derecho): borde y tirador a la derecha */
.data-panel--left { border-left: none; border-right: 1px solid var(--accent); }
.dp-resize--right { left: auto; right: 0; }
.dp-resize--right::after { left: auto; right: 2px; }
.lp-tab {
  background: transparent; border: none; border-bottom: 2px solid transparent;
  color: var(--muted); padding: 9px 10px; font-size: 12px; font-weight: 600;
  cursor: pointer; white-space: nowrap; font-family: var(--font-head);
}
.lp-tab:hover { color: var(--text); }
.lp-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* Cabecera con pestañas */
.dd-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px 0 4px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
  flex: 0 0 auto;
}
.dd-tabs { display: flex; gap: 2px; flex-wrap: wrap; }
.dd-tab {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  padding: 9px 10px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
.dd-tab:hover { color: var(--text); }
.dd-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.dd-head-actions { display: flex; gap: 6px; }

/* Vistas (tabla / dashboard) */
.dd-view { flex: 1 1 auto; display: flex; flex-direction: column; min-height: 0; }
.dd-view[hidden] { display: none; }

.dd-inline { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.dd-select {
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 6px;
  padding: 5px 8px;
  font-size: 12.5px;
  max-width: 220px;
}
.dd-select:focus { outline: none; border-color: var(--accent); }

/* Dashboard */
.db-scroll { flex: 1 1 auto; overflow: auto; padding: 12px; }
.db-kpis { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.kpi {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 18px;
  min-width: 130px;
}
.kpi-num { font-size: 24px; font-weight: 700; color: var(--text); }
.kpi-lbl { font-size: 11.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; margin-top: 2px; }

.db-charts { display: grid; grid-template-columns: 1.3fr 1fr; gap: 12px; }
@media (max-width: 1100px) { .db-charts { grid-template-columns: 1fr; } }
.db-card {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
}
.db-card-title { font-size: 12.5px; color: var(--muted); margin-bottom: 10px; }
.db-chart-wrap { position: relative; height: 300px; }

/* Vista de Mediciones (QTO) */
.med-units { display: flex; flex-wrap: wrap; gap: 10px; margin: 2px 0 14px; }
.med-unit-chip { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 8px; padding: 8px 14px; font-size: 13px; color: var(--muted); }
.med-unit-chip b { color: var(--accent); font-size: 15px; }
.med-table { margin-top: 16px; }
.dd-table th.num, .dd-table td.num { text-align: right; }
.dd-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
  flex: 0 0 auto;
}
.dd-title { font-size: 13px; white-space: nowrap; }
.dd-search {
  flex: 1 1 auto;
  max-width: 360px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  padding: 6px 10px;
  font-size: 13px;
}
.dd-search:focus { outline: none; border-color: var(--accent); }
.dd-count { font-size: 12px; color: var(--muted); margin-left: auto; white-space: nowrap; }

.ghost-line {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}
.ghost-line:hover { border-color: var(--accent); color: var(--accent); }

.dd-cols-wrap { position: relative; }
.dd-cols {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  width: 280px;
  max-height: 320px;
  overflow-y: auto;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px;
  z-index: 30;
  box-shadow: 0 10px 30px rgba(0,0,0,.5);
}
.dd-col-opt {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px;
  font-size: 13px;
  border-radius: 5px;
  cursor: pointer;
}
.dd-col-opt:hover { background: var(--panel); }
.dd-freq { margin-left: auto; color: var(--muted); font-size: 11px; }

.dd-body { flex: 1 1 auto; overflow: auto; }
.dd-msg { color: var(--muted); padding: 20px; font-size: 13px; }

.dd-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.dd-table thead th {
  position: sticky; top: 0;
  background: var(--bg-soft);
  color: var(--muted);
  text-align: left;
  font-weight: 600;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
  z-index: 1;
}
.dd-table td {
  padding: 6px 12px;
  border-bottom: 1px solid rgba(255,255,255,.04);
  white-space: nowrap;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dd-table tbody tr { cursor: pointer; }
.dd-table tbody tr:hover { background: var(--bg-soft); }
.dd-table tbody tr.active { background: rgba(59,156,255,.18); }
.dd-name { color: var(--text); font-weight: 500; }

/* ─── Panel derecho: pestañas (Propiedades / Árbol) ──────────── */
.panel-tabs { display: flex; border-bottom: 1px solid var(--line); background: var(--bg-soft); flex: 0 0 auto; }
.ptab {
  flex: 1 1 auto;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  padding: 10px 8px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
}
.ptab:hover { color: var(--text); }
.ptab.active { color: var(--accent); border-bottom-color: var(--accent); }
.ptab-view { flex: 1 1 auto; display: flex; flex-direction: column; min-height: 0; }
.ptab-view[hidden] { display: none; }

/* Árbol de jerarquía */
.model-tree { flex: 1 1 auto; overflow: auto; padding: 8px 6px; }
.model-tree .empty { color: var(--muted); font-size: 13px; padding: 12px; }
.tree, .tchildren { list-style: none; margin: 0; padding: 0; }
.tchildren { padding-left: 16px; }
.tchildren[hidden] { display: none; }
.tnode {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 13px;
}
.tnode:hover { background: var(--bg-soft); }
.tcaret { width: 12px; text-align: center; color: var(--muted); flex: 0 0 auto; font-size: 11px; }
.tname { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.troot { font-weight: 600; color: var(--accent); }
.tleaf { color: var(--muted); font-size: 12px; padding: 2px 8px; }

/* ─── Navegación de páginas (Inicio / Visor) ─────────────────── */
.app-hidden { display: none !important; }
body.on-home .viewer-only { display: none !important; }
.brand { cursor: pointer; user-select: none; }

/* ─── Página principal (Inicio) ──────────────────────────────── */
.home-page {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  background: radial-gradient(1000px 500px at 50% -15%, #1a212e, var(--bg));
}
.home-inner { max-width: 1080px; margin: 0 auto; padding: 44px 24px 60px; }
.home-hero h1 { margin: 0 0 6px; font-size: 30px; font-weight: 700; }
.home-hero p { margin: 0 0 28px; color: var(--muted); font-size: 14px; }

.home-stats { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }
.home-stat {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 16px 24px; min-width: 130px;
}
.home-stat-n { font-size: 30px; font-weight: 700; color: var(--accent); }
.home-stat-l { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; margin-top: 2px; }

.home-section-title { font-size: 14px; text-transform: uppercase; letter-spacing: .8px; color: var(--muted); margin: 26px 0 14px; }
.home-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.home-empty { color: var(--muted); font-size: 13px; }

.home-card {
  position: relative;
  text-align: left;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
  cursor: pointer;
  color: var(--text);
  transition: border-color .12s, transform .12s;
  display: flex; flex-direction: column; gap: 4px; min-height: 120px;
}
.home-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.home-card-icon { font-size: 24px; margin-bottom: 6px; }
.home-card-title { font-size: 15px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.home-card-sub { font-size: 12.5px; color: var(--muted); }
.home-card .badge { align-self: flex-start; margin-top: 4px; }
.home-card-cta { margin-top: auto; padding-top: 8px; color: var(--accent); font-size: 12.5px; font-weight: 600; }

/* Tarjeta de modelo con miniatura */
.home-card.model { padding: 0; overflow: hidden; gap: 0; }
.home-card-thumb {
  position: relative;
  height: 130px;
  background: #0c0e13;
  display: flex; align-items: center; justify-content: center;
  border-bottom: 1px solid var(--line);
}
.thumb-fallback { font-size: 34px; opacity: .5; }
.home-card-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.home-card-body { display: flex; flex-direction: column; gap: 4px; padding: 14px 16px 16px; flex: 1 1 auto; }

/* Accesos a vistas guardadas */
.home-views { display: flex; flex-wrap: wrap; gap: 10px; }
.home-view {
  background: var(--panel); border: 1px solid var(--line); color: var(--text);
  border-radius: 999px; padding: 8px 16px; font-size: 13px; cursor: pointer;
}
.home-view:hover { border-color: var(--accent); color: var(--accent); }

/* Actividad reciente */
.home-activity { display: flex; flex-direction: column; gap: 2px; max-width: 720px; }
.act-item { display: flex; align-items: center; gap: 10px; padding: 9px 4px; border-bottom: 1px solid rgba(255,255,255,.05); }
.act-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); flex: 0 0 auto; }
.act-upload { background: var(--ok); }
.act-delete { background: var(--error); }
.act-project { background: var(--accent); }
.act-user { background: var(--warn); }
.act-msg { flex: 1 1 auto; font-size: 13px; }
.act-meta { font-size: 12px; color: var(--muted); white-space: nowrap; }

/* Subir modelo en Inicio */
.home-upload { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px 18px; margin-bottom: 8px; }
.home-upload .file-label { margin: 0; }
.home-upload .dd-select { max-width: 300px; }

/* Acciones sobre la miniatura de la tarjeta de modelo */
.home-card-actions { position: absolute; top: 8px; right: 8px; display: flex; gap: 6px; opacity: 0; }
.home-card.model:hover .home-card-actions { opacity: 1; }
.home-card-actions button { background: rgba(0,0,0,.55); border: 1px solid var(--line); color: #fff; border-radius: 6px; width: 26px; height: 26px; cursor: pointer; font-size: 13px; }
.home-card-export:hover { border-color: var(--accent); }
.home-card-del:hover { border-color: var(--error); color: var(--error); }
.home-card.active { border-color: var(--accent); }

/* KPIs con semáforo (Calidad) */
.kpi-ok { border-color: rgba(53,196,107,.5); }
.kpi-ok .kpi-num { color: var(--ok); }
.kpi-warn { border-color: rgba(233,185,73,.5); }
.kpi-warn .kpi-num { color: var(--warn); }
.kpi-bad { border-color: rgba(239,91,91,.5); }
.kpi-bad .kpi-num { color: var(--error); }

/* Calidad: resumen de problemas */
.cal-issues { margin-top: 14px; }
.cal-issue-title { font-size: 12px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); margin: 14px 0 8px; }
.cal-issue { display: flex; align-items: center; gap: 8px; font-size: 13px; padding: 4px 0; }
.cal-issue-icon { flex: 0 0 auto; }
.cal-badvals { display: flex; flex-wrap: wrap; gap: 8px; }
.cal-badval { background: rgba(239,91,91,.12); color: var(--error); border-radius: 8px; padding: 5px 10px; font-size: 12.5px; }
.cal-badval b { color: var(--text); }
.cal-hint { font-size: 12px; color: var(--muted); margin-top: 10px; }

/* ─── Roles / barra superior ─────────────────────────────────── */
body:not(.is-admin) .admin-only { display: none !important; }
.user-label { font-size: 12.5px; color: var(--muted); white-space: nowrap; }
.topbar-sep { width: 1px; height: 22px; background: var(--line); }

/* Selector de proyecto */
.project-select {
  width: calc(100% - 24px);
  margin: 0 12px 8px;
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 7px;
  padding: 7px 8px;
  font-size: 13px;
}
.project-select:focus { outline: none; border-color: var(--accent); }

/* ─── Login ──────────────────────────────────────────────────── */
.login-overlay {
  position: fixed; inset: 0;
  background: radial-gradient(1200px 600px at 50% -10%, #1b2230, var(--bg));
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.login-overlay[hidden] { display: none; }
.login-card {
  width: 320px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px 24px;
  display: flex; flex-direction: column; gap: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.login-logo { display: block; height: 46px; width: auto; margin: 0 auto 6px; filter: drop-shadow(0 0 14px rgba(34,211,238,.45)); }
.login-brand { font-family: var(--font-head); font-size: 22px; font-weight: 700; text-align: center; letter-spacing: .3px; }
.login-brand strong { color: var(--accent-2); font-weight: 800; }
.login-sub { font-size: 12.5px; color: var(--muted); text-align: center; margin-bottom: 8px; }
.login-card input {
  background: var(--bg); border: 1px solid var(--line); color: var(--text);
  border-radius: 8px; padding: 10px 12px; font-size: 14px;
}
.login-card input:focus { outline: none; border-color: var(--accent); }
.login-card button {
  background: var(--grad); color: #fff; border: none;
  border-radius: 8px; padding: 11px; font-size: 14px; font-weight: 700; cursor: pointer; margin-top: 4px;
  font-family: var(--font-head); box-shadow: var(--shadow-btn);
}
.login-card button:hover { filter: brightness(1.08); transform: translateY(-1px); }
.login-error { color: var(--error); font-size: 12.5px; min-height: 16px; text-align: center; }

/* ─── Modal de administración ────────────────────────────────── */
.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.55);
  display: flex; align-items: center; justify-content: center;
  z-index: 90;
}
.modal[hidden] { display: none; }
.modal-card {
  width: 560px; max-width: 92vw; max-height: 86vh;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.modal-tabs { display: flex; gap: 2px; padding: 0 8px; border-bottom: 1px solid var(--line); background: var(--bg-soft); }
.atab { background: transparent; border: none; border-bottom: 2px solid transparent; color: var(--muted); padding: 10px 16px; font-size: 13px; font-weight: 600; cursor: pointer; }
.atab:hover { color: var(--text); }
.atab.active { color: var(--accent); border-bottom-color: var(--accent); }
.atab-view { padding: 16px; overflow-y: auto; }
.atab-view[hidden] { display: none; }

/* ─── Compartir: modal de enlace ─────────────────────────────────────────── */
.share-card { width: 480px; }
.share-card .share-model { margin: 14px 16px 2px; font-family: var(--font-head); font-weight: 700; color: var(--text); }
.share-card .share-help { margin: 0 16px 14px; color: var(--muted); font-size: 12.5px; line-height: 1.5; }
.share-opts { display: flex; flex-direction: column; gap: 10px; margin: 0 16px 12px; }
.share-opt { display: flex; align-items: center; gap: 8px; cursor: pointer; color: var(--text); font-size: 13.5px; }
.share-opt input { accent-color: var(--accent); }
#share-pw-input { display: block; width: calc(100% - 32px); margin: 0 16px 14px; }
#share-pw-input[hidden] { display: none; }
.share-gen { display: block; width: calc(100% - 32px); margin: 0 16px 14px; text-align: center; border: none; cursor: pointer; }
.share-result { display: flex; gap: 8px; margin: 0 16px 18px; }
.share-result[hidden] { display: none; }
.share-url {
  flex: 1; min-width: 0;
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: 8px;
  color: var(--accent-2); padding: 9px 11px; font-size: 12px; font-family: ui-monospace, monospace;
}

/* ─── Modo compartido: barra superior reducida ───────────────────────────── */
body.share-mode #home-btn,
body.share-mode #logout-btn,
body.share-mode #user-label,
body.share-mode #share-btn,
body.share-mode #admin-btn,
body.share-mode .topbar-sep { display: none !important; }
body.share-mode .brand { cursor: default; }

.admin-form { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.admin-form input, .admin-form .dd-select {
  flex: 1 1 140px;
  background: var(--bg); border: 1px solid var(--line); color: var(--text);
  border-radius: 7px; padding: 8px 10px; font-size: 13px;
}
.admin-form input:focus { outline: none; border-color: var(--accent); }
.admin-proj-pick { margin-bottom: 12px; }
.admin-label { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.usr-projects { display: flex; flex-wrap: wrap; gap: 10px; }
.usr-proj-opt { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; }
#usr-add { margin-bottom: 14px; }

.admin-list { list-style: none; margin: 0; padding: 0; }
.admin-item { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 7px; border-bottom: 1px solid rgba(255,255,255,.04); }
.admin-item:hover { background: var(--bg-soft); }
.admin-item-main { flex: 1 1 auto; font-size: 13px; }
.admin-empty { color: var(--muted); font-size: 13px; padding: 10px; }
.admin-del { background: transparent; border: none; color: var(--muted); cursor: pointer; font-size: 14px; }
.admin-del:hover { color: var(--error); }
.muted { color: var(--muted); }

/* Scrollbars discretos */
.props::-webkit-scrollbar, .model-list::-webkit-scrollbar, .model-tree::-webkit-scrollbar,
.dd-body::-webkit-scrollbar, .dd-cols::-webkit-scrollbar, .atab-view::-webkit-scrollbar { width: 9px; height: 9px; }
.props::-webkit-scrollbar-thumb, .model-list::-webkit-scrollbar-thumb, .model-tree::-webkit-scrollbar-thumb,
.dd-body::-webkit-scrollbar-thumb, .dd-cols::-webkit-scrollbar-thumb, .atab-view::-webkit-scrollbar-thumb { background: var(--line); border-radius: 5px; }