:root {
  --bg: #0b1220;
  --bg-card: #151d2e;
  --bg-hover: #1f2a40;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --primary: #4f8cff;
  --primary-dark: #3b6fd9;
  --accent: #8b5cf6;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --border: #2a3650;
  --sidebar-w: 268px;
  --radius: 12px;
  --shadow: 0 8px 32px rgba(0,0,0,.35);
  --glow: 0 0 24px rgba(79,140,255,.25);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
.hidden { display: none !important; }
.screen { display: none; min-height: 100vh; }
.screen.active { display: flex; }

/* Login */
#login-screen {
  align-items: center; justify-content: center;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, #1a2d52 0%, var(--bg) 55%);
  position: relative; overflow: hidden;
}
.login-bg-pattern {
  position: absolute; inset: 0; opacity: .4;
  background-image:
    linear-gradient(rgba(79,140,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,140,255,.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
}
.login-card {
  position: relative; z-index: 1;
  background: rgba(21,29,46,.92);
  backdrop-filter: blur(12px);
  padding: 2.5rem; border-radius: 16px; width: 100%; max-width: 420px;
  box-shadow: var(--shadow); border: 1px solid rgba(79,140,255,.2);
}
.brand { text-align: center; margin-bottom: 2rem; }
.brand-icon {
  width: 72px; height: 72px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 18px; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1rem; color: #fff; box-shadow: var(--glow);
}
.brand h1 { font-size: 1.75rem; }
.brand p { color: var(--text-muted); font-size: .9rem; margin-top: .25rem; }
.login-card label { display: block; margin-bottom: 1rem; font-size: .85rem; color: var(--text-muted); }
.login-card input {
  display: block; width: 100%; margin-top: .35rem; padding: .85rem 1rem;
  border: 1px solid var(--border); border-radius: 8px; background: var(--bg);
  color: var(--text); font-size: 1rem; transition: border-color .2s, box-shadow .2s;
}
.login-card input:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,140,255,.2);
}
.btn-glow { box-shadow: var(--glow); }
.btn-glow:hover { transform: translateY(-1px); box-shadow: 0 0 32px rgba(79,140,255,.4); }
.hint { text-align: center; font-size: .75rem; color: var(--text-muted); margin-top: 1rem; }
.empty-state { padding: 1.5rem; text-align: center; max-width: 32rem; margin: 1rem auto; }
.empty-state code { font-size: .85rem; }
.error { color: var(--danger); font-size: .85rem; margin-top: .5rem; }

/* App layout */
#app-screen { flex-direction: row; }
.sidebar { width: var(--sidebar-w); background: var(--bg-card); border-right: 1px solid var(--border); display: flex; flex-direction: column; position: fixed; height: 100vh; z-index: 100; transition: transform .3s; }
.sidebar-brand {
  padding: 1.25rem; font-weight: 700; font-size: 1.1rem;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: .65rem;
  background: linear-gradient(90deg, rgba(79,140,255,.08), transparent);
}
.sidebar-logo {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem; font-weight: 800; color: #fff;
}
#main-nav { flex: 1; padding: 1rem .5rem; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: .75rem;
  padding: .7rem 1rem; margin: .15rem .5rem;
  color: var(--text-muted); text-decoration: none; transition: all .2s;
  border-radius: 8px; border-left: none;
}
.nav-icon { width: 20px; height: 20px; flex-shrink: 0; opacity: .75; }
.nav-icon svg { width: 100%; height: 100%; }
.nav-item:hover, .nav-item.active {
  background: linear-gradient(90deg, rgba(79,140,255,.15), transparent);
  color: var(--text);
}
.nav-item.active { box-shadow: inset 3px 0 0 var(--primary); }
.nav-item.active .nav-icon { opacity: 1; color: var(--primary); }
.sidebar-footer { padding: 1rem; border-top: 1px solid var(--border); font-size: .8rem; color: var(--text-muted); }
.main-content { flex: 1; margin-left: var(--sidebar-w); min-height: 100vh; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; gap: 1rem; padding: 1rem 1.5rem;
  background: rgba(21,29,46,.85); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50;
}
.page-hero {
  margin-bottom: 1.5rem; padding: 1.25rem 1.5rem;
  background: linear-gradient(135deg, rgba(79,140,255,.12), rgba(139,92,246,.08));
  border-radius: var(--radius); border: 1px solid rgba(79,140,255,.2);
}
.page-hero h3 { font-size: 1.15rem; margin-bottom: .25rem; }
.page-hero p { font-size: .85rem; color: var(--text-muted); }
.topbar h2 { font-size: 1.25rem; flex: 1; }
.page-content { padding: 1.5rem; flex: 1; }

/* Components */
.btn { padding: .6rem 1.2rem; border: none; border-radius: 6px; cursor: pointer; font-size: .9rem; font-weight: 500; transition: all .2s; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-ghost { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-success { background: var(--success); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-sm { padding: .35rem .75rem; font-size: .8rem; }
.btn-icon { background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; display: none; }

.card {
  background: var(--bg-card); border-radius: var(--radius); padding: 1.25rem;
  border: 1px solid var(--border); margin-bottom: 1rem;
  box-shadow: 0 2px 12px rgba(0,0,0,.15);
  transition: border-color .2s, transform .15s;
}
.card:hover { border-color: rgba(79,140,255,.25); }
.kpi-card { display: flex; flex-direction: column; align-items: flex-start; position: relative; overflow: hidden; }
.kpi-card::after {
  content: ''; position: absolute; top: -40%; right: -20%; width: 80px; height: 80px;
  background: radial-gradient(circle, rgba(79,140,255,.15), transparent 70%);
  border-radius: 50%;
}
.kpi-icon { font-size: 1.25rem; margin-bottom: .5rem; opacity: .9; }
.kpi-icon-blue { color: var(--primary); }
.kpi-icon-green { color: var(--success); }
.kpi-icon-amber { color: var(--warning); }
.kpi-icon-red { color: var(--danger); }
.dashboard-charts { display: grid; grid-template-columns: 1.2fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.chart-card h3 { margin-bottom: 1rem; }
.tz-bar-chart { display: flex; align-items: flex-end; gap: 1rem; height: var(--chart-h, 140px); padding-top: 1.5rem; }
.tz-bar-item { flex: 1; display: flex; flex-direction: column; align-items: center; height: 100%; }
.tz-bar-track { flex: 1; width: 100%; max-width: 48px; display: flex; align-items: flex-end; background: var(--bg); border-radius: 8px 8px 0 0; min-height: 60px; }
.tz-bar-fill { width: 100%; border-radius: 8px 8px 0 0; transition: height .4s ease; min-height: 4px; }
.tz-bar-val { font-size: .85rem; font-weight: 700; margin-bottom: .35rem; }
.tz-bar-label { font-size: .7rem; color: var(--text-muted); margin-top: .5rem; text-align: center; }
.tz-donut-wrap { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.tz-donut-legend { display: flex; flex-direction: column; gap: .35rem; font-size: .8rem; }
.tz-donut-legend-item { display: flex; align-items: center; gap: .5rem; }
.tz-donut-legend-item i { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.tech-bars { display: flex; flex-direction: column; gap: .75rem; }
.tech-bar-row { display: grid; grid-template-columns: 140px 1fr 36px; align-items: center; gap: .75rem; }
.tech-bar-name { font-size: .85rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tech-bar-track { height: 8px; background: var(--bg); border-radius: 99px; overflow: hidden; }
.tech-bar-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 99px; transition: width .5s ease; }
.tech-bar-num { font-weight: 700; font-size: .85rem; text-align: right; color: var(--primary); }
.tz-toast {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 9999;
  padding: .85rem 1.25rem; border-radius: 10px; font-size: .9rem;
  background: var(--bg-card); border: 1px solid var(--border);
  box-shadow: var(--shadow); transform: translateY(120%); opacity: 0;
  transition: transform .3s, opacity .3s;
}
.tz-toast.show { transform: translateY(0); opacity: 1; }
.tz-toast-success { border-color: var(--success); background: rgba(34,197,94,.15); }
.tz-skeleton { padding: 1rem; }
.tz-skeleton-line {
  height: 12px; background: linear-gradient(90deg, var(--bg-hover) 25%, var(--border) 50%, var(--bg-hover) 75%);
  background-size: 200% 100%; animation: shimmer 1.2s infinite; border-radius: 6px; margin-bottom: .75rem;
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.loading::before {
  content: ''; display: inline-block; width: 20px; height: 20px; margin-right: .5rem;
  border: 2px solid var(--border); border-top-color: var(--primary); border-radius: 50%;
  animation: spin .7s linear infinite; vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }
.error-card { border-color: var(--danger); background: rgba(239,68,68,.08); }
.card h3 { font-size: 1rem; margin-bottom: .75rem; color: var(--text-muted); }
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.kpi { text-align: center; padding: 1.5rem; }
.kpi-value { font-size: 2rem; font-weight: 700; color: var(--primary); }
.kpi-label { font-size: .85rem; color: var(--text-muted); margin-top: .25rem; }
.kpi.warning .kpi-value { color: var(--warning); }
.kpi.danger .kpi-value { color: var(--danger); }
.kpi.success .kpi-value { color: var(--success); }
.kpi-card { animation: kpiFadeIn .5s ease backwards; }
.kpi-card:nth-child(1) { animation-delay: .05s; }
.kpi-card:nth-child(2) { animation-delay: .1s; }
.kpi-card:nth-child(3) { animation-delay: .15s; }
.kpi-card:nth-child(4) { animation-delay: .2s; }
@keyframes kpiFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.kpi-trend { font-size: .72rem; color: var(--text-muted); margin-top: .35rem; }
.kpi-trend.up { color: var(--success); }
.kpi-trend.down { color: var(--danger); }

table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: .9rem; }
.table-wrap table { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
th, td { padding: .75rem 1rem; text-align: left; border-bottom: 1px solid var(--border); }
th {
  color: var(--text-muted); font-weight: 600; font-size: .75rem; text-transform: uppercase;
  letter-spacing: .04em; background: rgba(79,140,255,.06); position: sticky; top: 0; z-index: 1;
}
tr:last-child td { border-bottom: none; }
tbody tr { transition: background .15s; }
tbody tr:hover td { background: rgba(79,140,255,.06); }

.badge { display: inline-block; padding: .2rem .6rem; border-radius: 999px; font-size: .75rem; font-weight: 600; }
.badge-pending { background: #fef3c7; color: #92400e; }
.badge-assigned { background: #dbeafe; color: #1e40af; }
.badge-progress { background: #d1fae5; color: #065f46; }
.badge-completed { background: #dcfce7; color: #166534; }
.badge-cancelled { background: #fee2e2; color: #991b1b; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; }
.form-group label { display: block; font-size: .8rem; color: var(--text-muted); margin-bottom: .35rem; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: .6rem; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg); color: var(--text); font-size: .9rem;
}

.map-layout { display: grid; grid-template-columns: 1fr 260px; gap: 1rem; }
.map-canvas, #map { height: 500px; border-radius: var(--radius); z-index: 1; min-height: 400px; width: 100%; background: #e2e8f0; }
.map-error {
  display: flex; align-items: center; justify-content: center;
  height: 100%; min-height: 400px; padding: 1.5rem; text-align: center;
  color: var(--danger); font-size: .9rem; line-height: 1.5;
}
.map-side-panel { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; max-height: 500px; overflow-y: auto; }
.map-side-panel ul { list-style: none; padding: 0; margin: 0; }
.map-side-panel li { padding: .4rem 0; border-bottom: 1px solid var(--border); font-size: .85rem; }
.map-side-panel a { color: var(--primary); text-decoration: none; }
.map-toolbar { margin-bottom: 1rem; }
.map-sync-info { font-size: .8rem; color: var(--text-muted); margin: .5rem 0 0; }
.map-filters { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; }
.map-auto-refresh { font-size: .85rem; display: flex; align-items: center; gap: .35rem; }
.map-legend { display: flex; flex-wrap: wrap; gap: 1.5rem; margin-top: .75rem; font-size: .85rem; }
.legend-dot { display: inline-block; width: 12px; height: 12px; border-radius: 50%; margin-right: .35rem; }
.legend-branch { background: #3b82f6; }
.legend-tech { background: #22c55e; }
.legend-asset { background: #8b5cf6; border-radius: 3px; }
.legend-order { background: #f59e0b; }

.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: .5rem; }
.cal-day {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px;
  padding: .6rem; min-height: 110px; font-size: .8rem; transition: border-color .2s;
}
.cal-day:hover { border-color: rgba(79,140,255,.35); }
.cal-day-header {
  font-weight: 700; margin-bottom: .5rem; color: var(--text);
  font-size: .75rem; padding-bottom: .35rem; border-bottom: 1px dashed var(--border);
}
.cal-event {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  color: white; padding: .25rem .45rem; border-radius: 6px; margin-bottom: .25rem;
  font-size: .68rem; cursor: pointer; box-shadow: 0 2px 6px rgba(79,140,255,.25);
}

.mobile-card { background: var(--bg-card); border-radius: var(--radius); padding: 1rem; margin-bottom: .75rem; border-left: 4px solid var(--primary); }
.mobile-actions { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .75rem; }

.report-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: .75rem; }
.report-item[role="button"] { cursor: pointer; }
.report-item {
  background: linear-gradient(145deg, var(--bg-card), rgba(79,140,255,.04));
  padding: 1.1rem 1.25rem; border-radius: var(--radius); border: 1px solid var(--border);
  cursor: pointer; transition: all .2s; position: relative; overflow: hidden;
}
.report-item::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--primary), var(--accent)); opacity: 0; transition: opacity .2s;
}
.report-item:hover {
  border-color: rgba(79,140,255,.45); transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
}
.report-item:hover::before { opacity: 1; }
.report-item strong { display: block; font-size: .92rem; color: var(--text); }
.report-item-meta { display: block; font-size: .75rem; color: var(--text-muted); margin-top: .25rem; }
.report-result { max-height: 400px; overflow: auto; margin-top: 1rem; }
.radio-card {
  display: flex; align-items: center; gap: .5rem; padding: .6rem .75rem;
  border: 1px solid var(--border); border-radius: 8px; cursor: pointer; font-size: .85rem;
}
.radio-card:has(input:checked) { border-color: var(--primary); background: rgba(37, 99, 235, .08); }

.loading { text-align: center; padding: 3rem; color: var(--text-muted); }

/* Spinner listados */
.tz-spinner-wrap {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 200px; gap: 1rem; color: var(--text-muted);
}
.tz-spinner, .tz-btn-spinner {
  width: 36px; height: 36px; border: 3px solid var(--border);
  border-top-color: var(--primary); border-radius: 50%;
  animation: spin .7s linear infinite; display: inline-block;
}
.tz-btn-spinner { width: 14px; height: 14px; border-width: 2px; vertical-align: middle; margin-right: 4px; }
.page-content.is-loading { pointer-events: none; opacity: .85; }

/* Modales CRUD */
.tz-modal-root {
  position: fixed; inset: 0; z-index: 10000;
  display: flex; align-items: center; justify-content: center; padding: 1rem;
}
.tz-modal-root.hidden { display: none !important; }
.tz-modal-overlay {
  position: absolute; inset: 0; background: rgba(0,0,0,.65); backdrop-filter: blur(4px);
}
.tz-modal {
  position: relative; z-index: 1; width: 100%; max-width: 520px; max-height: 90vh;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px;
  box-shadow: var(--shadow); display: flex; flex-direction: column;
}
.tz-modal-root.modal-lg .tz-modal { max-width: 640px; }
.tz-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.25rem; border-bottom: 1px solid var(--border);
}
.tz-modal-header h3 { font-size: 1.1rem; margin: 0; }
.tz-modal-close {
  background: none; border: none; color: var(--text-muted); font-size: 1.5rem;
  cursor: pointer; line-height: 1; padding: 0 .25rem;
}
.tz-modal-body { padding: 1.25rem; overflow-y: auto; flex: 1; }
.tz-modal-footer {
  display: flex; justify-content: flex-end; gap: .75rem;
  padding: 1rem 1.25rem; border-top: 1px solid var(--border);
}
.modal-msg { margin-bottom: .5rem; font-size: .95rem; }
.modal-warn { color: var(--warning); font-size: .85rem; }
.form-grid-modal { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-grid-modal .span-2 { grid-column: 1 / -1; }
.form-grid-modal .form-group label { display: block; margin-bottom: .35rem; font-size: .85rem; color: var(--text-muted); }
.form-grid-modal input, .form-grid-modal select, .form-grid-modal textarea {
  width: 100%; padding: .55rem .75rem; border-radius: 6px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text);
}
.card-toolbar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 1rem; margin-bottom: 1rem;
}
.row-actions { display: flex; flex-wrap: wrap; gap: .35rem; align-items: center; }
.tz-toast-error { border-color: var(--danger); background: rgba(239,68,68,.15); }
.table-wrap { overflow-x: auto; }
.empty {
  text-align: center; padding: 2.5rem 1.5rem; color: var(--text-muted);
  background: rgba(79,140,255,.04); border-radius: var(--radius); border: 1px dashed var(--border);
}
.empty::before {
  content: '◇'; display: block; font-size: 2rem; opacity: .35; margin-bottom: .75rem;
  color: var(--primary);
}
.chart-card {
  background: linear-gradient(180deg, var(--bg-card) 0%, rgba(21,29,46,.95) 100%);
}
.tz-sparkline { display: block; margin-top: .5rem; opacity: .9; }
.topbar-sub { font-size: .75rem; color: var(--text-muted); font-weight: 400; }
.btn { box-shadow: 0 1px 2px rgba(0,0,0,.2); }
.btn-primary:hover { box-shadow: var(--glow); }
.card-toolbar h3 { margin: 0; font-size: 1.1rem; color: var(--text); }

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .btn-icon { display: block; }
  .mobile-only-nav { display: block; }
  .map-layout { grid-template-columns: 1fr; }
  .map-canvas, #map { height: 350px; }
  .map-side-panel { max-height: 200px; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .dashboard-charts { grid-template-columns: 1fr; }
  .tech-bar-row { grid-template-columns: 1fr; gap: .25rem; }
}

@media (min-width: 769px) {
  .mobile-only-nav { display: none; }
}