:root {
  --red: #C8102E; --red-2: #e0283f; --navy: #1F2A44;
  --bg: #f4f6fa; --panel: #ffffff; --panel-2: #f8f9fc; --line: #e3e7ef; --text: #172033; --muted: #66708a;
  --green: #12805c; --green-bg: #e3f5ee; --amber: #b7791f; --amber-bg: #fdf3dc; --danger: #c22b3a; --danger-bg: #fde8ea;
  --blue: #2f6fdf; --blue-bg: #e7effd;
  --side: #121a2e; --side-text: #c6cde0; --side-active: #ffffff;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
  --radius: 12px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1220; --panel: #151c2e; --panel-2: #1a2236; --line: #263049; --text: #e7ebf5; --muted: #94a0bb;
    --green: #3ccf91; --green-bg: #12352a; --amber: #f2b84b; --amber-bg: #3a2d10; --danger: #ff6b7a; --danger-bg: #3d1820;
    --blue: #79a6ff; --blue-bg: #18284a; --side: #0a0f1c; --shadow: 0 1px 2px rgba(0, 0, 0, .4);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d1220; --panel: #151c2e; --panel-2: #1a2236; --line: #263049; --text: #e7ebf5; --muted: #94a0bb;
  --green: #3ccf91; --green-bg: #12352a; --amber: #f2b84b; --amber-bg: #3a2d10; --danger: #ff6b7a; --danger-bg: #3d1820;
  --blue: #79a6ff; --blue-bg: #18284a; --side: #0a0f1c; --shadow: 0 1px 2px rgba(0, 0, 0, .4);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { background: var(--bg); color: var(--text); font: 14px/1.45 Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { margin: 0; letter-spacing: -.01em; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.neg { color: var(--danger); }
.pos { color: var(--green); }
.error-text { color: var(--danger); min-height: 1.2em; margin: 8px 0 0; }
.nowrap { white-space: nowrap; }

/* ------------------------------------------------ login */
.login { min-height: 100%; display: grid; place-items: center; padding: 16px;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(200, 16, 46, .35), transparent 60%), linear-gradient(160deg, #0b1020, #1F2A44); }
.login-card { width: min(420px, 100%); background: var(--panel); border-radius: 18px; padding: 32px; box-shadow: 0 20px 60px rgba(0, 0, 0, .35); }
.login-card h1 { font-size: 26px; margin-top: 12px; }
.login-logo { width: 56px; height: 56px; }

/* ------------------------------------------------ layout */
.shell { display: grid; grid-template-columns: 236px 1fr; min-height: 100vh; }
.sidebar { background: var(--side); color: var(--side-text); display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; padding: 16px 12px; overflow-y: auto; }
.brand { display: flex; gap: 10px; align-items: center; color: #fff; padding: 4px 8px 18px; text-decoration: none !important; }
.brand img { width: 36px; height: 36px; }
.brand b { display: block; font-size: 15px; }
.brand small { color: var(--side-text); font-size: 12px; }
#nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
#nav .sec { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: #6f7a96; padding: 14px 10px 4px; }
#nav a { color: var(--side-text); display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 8px; font-weight: 500; text-decoration: none; }
#nav a .ic { width: 18px; text-align: center; opacity: .85; }
#nav a:hover { background: rgba(255, 255, 255, .06); color: #fff; }
#nav a.active { background: linear-gradient(90deg, rgba(200, 16, 46, .9), rgba(200, 16, 46, .55)); color: var(--side-active); }
#nav .badge { margin-left: auto; background: rgba(255, 255, 255, .14); color: #fff; border-radius: 99px; padding: 0 7px; font-size: 11px; }
.sidebar-foot { border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 12px; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.user { display: flex; align-items: center; gap: 8px; color: #fff; font-weight: 600; }
.avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--red); display: grid; place-items: center; font-size: 13px; }
.main { min-width: 0; display: flex; flex-direction: column; }
.topbar { display: flex; align-items: center; gap: 12px; padding: 14px 24px; background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; }
.topbar h2 { font-size: 18px; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }
.menu-btn { display: none; }
.view { padding: 22px 24px 60px; max-width: 1500px; width: 100%; }

/* ------------------------------------------------ componentes */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 1px solid var(--line); background: var(--panel); color: var(--text);
  padding: 8px 14px; border-radius: 9px; font: inherit; font-weight: 600; cursor: pointer; white-space: nowrap; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--red); border-color: var(--red); color: #fff; }
.btn.primary:hover { background: var(--red-2); }
.btn.danger { color: var(--danger); }
.btn.ghost { background: transparent; border-color: rgba(255, 255, 255, .15); color: var(--side-text); }
.btn.sm { padding: 5px 10px; font-size: 13px; }
.btn.block { width: 100%; padding: 11px; margin-top: 8px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.icon-btn { border: 1px solid var(--line); background: var(--panel); color: var(--text); width: 34px; height: 34px; border-radius: 9px; cursor: pointer; font-size: 16px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-h { display: flex; align-items: center; gap: 10px; padding: 14px 16px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.card-h h3 { font-size: 15px; flex: 1; }
.card-b { padding: 16px; }
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.span2 { grid-column: span 2; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); position: relative; overflow: hidden; }
.kpi .l { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.kpi .v { font-size: 22px; font-weight: 800; margin-top: 4px; font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.kpi .s { font-size: 12px; color: var(--muted); margin-top: 2px; }
.kpi.accent { background: linear-gradient(135deg, var(--navy), #2b3a63); color: #fff; border: 0; }
.kpi.accent .l, .kpi.accent .s { color: #c6cde0; }
.kpi.red { background: linear-gradient(135deg, var(--red), #8e0b20); color: #fff; border: 0; }
.kpi.red .l, .kpi.red .s { color: #ffd6dc; }
.delta { font-size: 12px; font-weight: 700; margin-left: 6px; }
.delta.up { color: var(--green); } .delta.down { color: var(--danger); }
.kpi.accent .delta.up, .kpi.red .delta.up { color: #8ff0c6; }
.kpi.accent .delta.down, .kpi.red .delta.down { color: #ffb3bd; }
.chip { display: inline-flex; align-items: center; gap: 4px; padding: 2px 9px; border-radius: 99px; font-size: 12px; font-weight: 600; background: var(--panel-2); border: 1px solid var(--line); white-space: nowrap; }
.chip.green { background: var(--green-bg); color: var(--green); border-color: transparent; }
.chip.amber { background: var(--amber-bg); color: var(--amber); border-color: transparent; }
.chip.red { background: var(--danger-bg); color: var(--danger); border-color: transparent; }
.chip.blue { background: var(--blue-bg); color: var(--blue); border-color: transparent; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip.toggle { cursor: pointer; user-select: none; }
.chip.toggle.on { background: var(--navy); color: #fff; border-color: var(--navy); }
:root[data-theme="dark"] .chip.toggle.on { background: var(--red); border-color: var(--red); }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 16px; overflow-x: auto; }
.tabs button { background: none; border: 0; padding: 10px 14px; font: inherit; font-weight: 600; color: var(--muted); cursor: pointer; border-bottom: 2px solid transparent; white-space: nowrap; }
.tabs button.on { color: var(--text); border-bottom-color: var(--red); }

/* ------------------------------------------------ formularios */
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; min-width: 0; }
.field > span { font-size: 12px; font-weight: 600; color: var(--muted); }
.field .hint { font-size: 11px; color: var(--muted); }
input, select, textarea { font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; width: 100%; min-width: 0; }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(47, 111, 223, .35); border-color: var(--blue); }
textarea { min-height: 70px; resize: vertical; }
input[type=checkbox] { width: auto; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 14px; }
.form-grid .full { grid-column: 1 / -1; }
.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 14px; }
.filters .field { margin: 0; min-width: 130px; }
.filters .field.grow { flex: 1; min-width: 200px; }

/* ------------------------------------------------ tablas */
.table-wrap { overflow: auto; max-width: 100%; }
table.t { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13px; }
table.t th { position: sticky; top: 0; background: var(--panel-2); color: var(--muted); font-weight: 600; text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line);
  font-size: 12px; white-space: nowrap; cursor: pointer; user-select: none; z-index: 1; }
table.t th.num { text-align: right; }
table.t td { padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.t tr.click { cursor: pointer; }
table.t tbody tr:hover td { background: var(--panel-2); }
table.t tfoot td { font-weight: 700; background: var(--panel-2); border-top: 2px solid var(--line); }
table.t td.wrap { min-width: 220px; }
table.t tr.sel td { background: var(--blue-bg) !important; }
.table-tools { display: flex; gap: 8px; align-items: center; padding: 10px 16px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.table-tools input[type=search] { max-width: 280px; }
.pager { display: flex; gap: 8px; align-items: center; justify-content: flex-end; padding: 10px 16px; }
.empty { padding: 30px; text-align: center; color: var(--muted); }
.pl td:first-child { white-space: nowrap; }
.pl tr.tot td { font-weight: 800; background: var(--panel-2); }
.pl tr.sub td:first-child { padding-left: 26px; color: var(--muted); }

/* ------------------------------------------------ modal y avisos */
.modal-back { position: fixed; inset: 0; background: rgba(8, 12, 24, .55); display: grid; place-items: center; padding: 16px; z-index: 100; animation: fade .15s; }
.modal { background: var(--panel); border-radius: 16px; width: min(760px, 100%); max-height: calc(100vh - 32px); display: flex; flex-direction: column; box-shadow: 0 30px 80px rgba(0, 0, 0, .35); }
.modal.sm { width: min(460px, 100%); }
.modal.lg { width: min(1000px, 100%); }
.modal-h { padding: 18px 20px 6px; display: flex; align-items: center; gap: 10px; }
.modal-h h3 { flex: 1; font-size: 17px; }
.modal-b { padding: 12px 20px; overflow-y: auto; }
.modal-f { padding: 14px 20px; border-top: 1px solid var(--line); display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap; }
.toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 200; }
.toast { background: var(--navy); color: #fff; padding: 11px 16px; border-radius: 10px; box-shadow: var(--shadow); max-width: 380px; animation: fade .2s; }
.toast.err { background: var(--danger); }
.toast.ok { background: var(--green); }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; } }
.alert { padding: 10px 14px; border-radius: 10px; background: var(--amber-bg); color: var(--amber); font-weight: 500; }
.alert.red { background: var(--danger-bg); color: var(--danger); }
.alert.blue { background: var(--blue-bg); color: var(--blue); }
.alert.green { background: var(--green-bg); color: var(--green); }

/* ------------------------------------------------ gráficos y reportes */
.chart { width: 100%; height: 320px; }
.chart.tall { height: 420px; }
.chart.short { height: 220px; }
.report-filters { position: sticky; top: 63px; z-index: 10; background: var(--bg); padding: 10px 0 12px; }
.section-title { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 700; margin: 10px 0 -4px; }
.ev-head { display: flex; gap: 16px; align-items: flex-start; flex-wrap: wrap; }
.ev-head h1 { font-size: 22px; }
.kv { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px 18px; }
.kv div span { display: block; font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; font-weight: 600; }
.bar-mini { height: 6px; border-radius: 6px; background: var(--line); overflow: hidden; margin-top: 4px; }
.bar-mini i { display: block; height: 100%; background: var(--red); }
.list { display: flex; flex-direction: column; }
.list .it { display: flex; gap: 10px; align-items: center; padding: 9px 0; border-bottom: 1px solid var(--line); }
.list .it:last-child { border-bottom: 0; }
.list .it .grow { flex: 1; min-width: 0; }
.ellipsis { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

@media (max-width: 1100px) { .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .g3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; left: 0; top: 0; bottom: 0; width: 250px; z-index: 50; transform: translateX(-100%); transition: transform .2s; }
  .sidebar.open { transform: none; box-shadow: 0 0 60px rgba(0, 0, 0, .5); }
  .menu-btn { display: inline-block; }
  .topbar { padding: 10px 16px; }
  .topbar-actions .btn:not(.primary) { display: none; }
  .view { padding: 16px 16px 60px; }
  .g2, .g3, .g4 { grid-template-columns: 1fr; }
  .span2 { grid-column: auto; }
  .form-grid { grid-template-columns: 1fr; }
  .report-filters { top: 55px; }
}
@media print {
  .sidebar, .topbar, .report-filters .no-print, .table-tools, .pager { display: none !important; }
  .shell { display: block; } .view { padding: 0; } .card { break-inside: avoid; box-shadow: none; }
  body { background: #fff; }
}