/* =====================================================================
   Threat Exporter · Portal
   Dirección visual: "cuaderno de registro" (ledger). El repositorio es,
   en esencia, un archivo de expedientes semanales — la tipografía
   monoespaciada trata cada cifra como una entrada de registro, y el
   "sello" de validación es el único elemento con personalidad marcada;
   el resto se mantiene disciplinado.
   ===================================================================== */

:root {
  --ink-900: #14181f;
  --ink-700: #333b47;
  --ink-500: #5b6472;
  --paper: #f6f4ef;
  --paper-2: #eeebe1;
  --line: #dad5c7;
  --signal: #2b6e63;
  --signal-dim: #e3ece9;
  --alert: #b3492b;
  --alert-dim: #f5e3dd;
  --gold: #b8863b;
  --white: #ffffff;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Consolas, monospace;

  --radius: 3px;
  --sidebar-width: 240px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink-900);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
}

a { color: var(--signal); }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: no-preference) {
  .kpi, .chart-card, table.ledger tbody tr, .file-row, .btn {
    transition: background-color .15s ease, border-color .15s ease, transform .15s ease;
  }
}

/* ---------- Layout general ---------- */

.shell { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--ink-900);
  color: #c7cbd1;
  display: flex;
  flex-direction: column;
  padding: 28px 20px;
  position: fixed;
  top: 0; bottom: 0; left: 0;
}

.sidebar__brand {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .28);
  display: inline-block;
  padding: 7px 10px;
  transform: rotate(-1.5deg);
  margin-bottom: 36px;
  width: fit-content;
  line-height: 1.3;
}

.sidebar__brand small { display: block; font-size: 9px; color: #9aa0a8; letter-spacing: .18em; }

.sidebar nav { display: flex; flex-direction: column; gap: 2px; }

.sidebar nav a {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: #aeb3ba;
  text-decoration: none;
  font-size: 14px;
  border-left: 2px solid transparent;
}

.sidebar nav a:hover { background: rgba(255, 255, 255, .06); color: #fff; }

.sidebar nav a.active {
  background: rgba(255, 255, 255, .08);
  color: #fff;
  border-left-color: var(--signal);
  font-weight: 600;
}

.sidebar__footer {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  font-size: 13px;
}

.sidebar__footer .user { color: #dfe2e6; margin-bottom: 8px; word-break: break-word; }
.sidebar__footer a { color: #9aa0a8; text-decoration: none; }
.sidebar__footer a:hover { color: #fff; }

.main { margin-left: var(--sidebar-width); padding: 40px 48px; flex: 1; min-width: 0; }

.page-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; margin-bottom: 28px; flex-wrap: wrap; }
.page-header h1 { margin: 0 0 6px; font-size: 22px; }
.page-header .eyebrow { font-family: var(--font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-500); }

/* ---------- Sello (elemento distintivo) ---------- */

.stamp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 2px solid var(--signal);
  color: var(--signal);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .09em;
  font-size: 12px;
  font-weight: 700;
  padding: 7px 14px;
  border-radius: var(--radius);
  transform: rotate(-2deg);
  background: var(--signal-dim);
  white-space: nowrap;
}

.stamp--muted { color: var(--ink-500); border-color: var(--line); background: var(--paper-2); }

/* ---------- KPIs ---------- */

.kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; margin-bottom: 28px; }

.kpi { background: var(--white); border: 1px solid var(--line); border-top: 3px solid var(--signal); padding: 18px 20px; }
.kpi:nth-child(2) { border-top-color: var(--gold); }
.kpi:nth-child(3) { border-top-color: var(--ink-700); }

.kpi__label { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-500); }
.kpi__value { font-family: var(--font-mono); font-size: 30px; font-weight: 600; margin-top: 6px; }

/* ---------- Gráficas ---------- */

.charts-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); gap: 20px; margin-bottom: 28px; }
.chart-card { background: var(--white); border: 1px solid var(--line); padding: 20px; min-width: 0; }
.chart-card__title {
  font-family: var(--font-mono); font-size: 12px; text-transform: uppercase;
  letter-spacing: .08em; color: var(--ink-500);
  border-bottom: 1px solid var(--line); padding-bottom: 10px; margin-bottom: 16px;
}
.chart-card svg.bar-chart { width: 100%; height: auto; display: block; }
.bar-chart-grid { stroke: var(--line); stroke-width: 1; }
.bar-chart-axis { stroke: var(--ink-500); stroke-width: 1; }
.bar-chart-axis-label { font-family: var(--font-mono); font-size: 11px; fill: var(--ink-500); }
.bar-chart-value-label { font-family: var(--font-mono); font-size: 11px; font-weight: 600; fill: var(--ink-900); }
.bar-chart-category-label { font-family: var(--font-sans); font-size: 10.5px; fill: var(--ink-700); }

@media (max-width: 900px) { .charts-grid { grid-template-columns: 1fr; } }

/* ---------- Tablas tipo ledger ---------- */

.table-card { background: var(--white); border: 1px solid var(--line); overflow-x: auto; }

table.ledger { width: 100%; border-collapse: collapse; font-size: 13.5px; white-space: nowrap; }
table.ledger th {
  text-align: left; font-family: var(--font-mono); text-transform: uppercase;
  font-size: 10.5px; letter-spacing: .06em; color: var(--ink-500);
  border-bottom: 2px solid var(--ink-900); padding: 10px 14px; position: sticky; top: 0; background: var(--white);
}
table.ledger td { padding: 9px 14px; border-bottom: 1px solid var(--line); font-family: var(--font-mono); }
table.ledger td:first-child, table.ledger th:first-child { font-family: var(--font-sans); white-space: normal; }
table.ledger tbody tr:nth-child(even) { background: var(--paper-2); }
table.ledger tbody tr:hover { background: var(--signal-dim); }

/* ---------- Formularios y botones ---------- */

.field { margin-bottom: 16px; }
.field label { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-500); margin-bottom: 6px; }
.field input, .field select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius);
  font-family: var(--font-sans); font-size: 14px; background: var(--white); color: var(--ink-900);
}
.field input:focus, .field select:focus { border-color: var(--signal); }

.btn {
  display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--ink-900);
  background: var(--ink-900); color: var(--white); padding: 10px 18px; border-radius: var(--radius);
  font-size: 14px; font-weight: 600; text-decoration: none; cursor: pointer;
}
.btn:hover { background: #262c37; }
.btn--ghost { background: transparent; color: var(--ink-900); }
.btn--ghost:hover { background: var(--paper-2); }
.btn--sm { padding: 6px 12px; font-size: 13px; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }

.alert-box { background: var(--alert-dim); border: 1px solid var(--alert); color: var(--alert); padding: 12px 16px; border-radius: var(--radius); margin-bottom: 20px; font-size: 14px; }

/* ---------- Login ---------- */

.login-wrap { min-height: 100vh; width: 100%; display: flex; align-items: center; justify-content: center; }
.login-card { background: var(--white); border: 1px solid var(--line); padding: 40px; width: 100%; max-width: 360px; }
.login-card .stamp { margin-bottom: 24px; }
.login-card h1 { font-size: 19px; margin: 0 0 4px; }
.login-card p.sub { color: var(--ink-500); font-size: 13.5px; margin: 0 0 24px; }

/* ---------- Toolbar (repositorio) ---------- */

.toolbar { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 20px; background: var(--white); border: 1px solid var(--line); padding: 16px; }
.toolbar .field { margin-bottom: 0; min-width: 160px; flex: 1; }
.toolbar form { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; width: 100%; }

.stats-strip { display: flex; gap: 24px; flex-wrap: wrap; margin-bottom: 20px; font-family: var(--font-mono); font-size: 13px; color: var(--ink-500); }
.stats-strip strong { color: var(--ink-900); font-size: 15px; }

.empty-state { background: var(--white); border: 1px dashed var(--line); padding: 48px 24px; text-align: center; color: var(--ink-500); }

.kind-badge { font-family: var(--font-mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: .05em; padding: 2px 8px; border-radius: 10px; }
.kind-badge--amenazas { background: var(--paper-2); color: var(--ink-700); }
.kind-badge--resumen { background: var(--signal-dim); color: var(--signal); }

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .shell { flex-direction: column; }
  .sidebar { position: static; width: 100%; height: auto; flex-direction: row; align-items: center; padding: 16px 20px; overflow-x: auto; }
  .sidebar__brand { margin-bottom: 0; margin-right: 20px; flex-shrink: 0; }
  .sidebar nav { flex-direction: row; }
  .sidebar__footer { margin-top: 0; margin-left: auto; border-top: none; padding-top: 0; flex-shrink: 0; }
  .main { margin-left: 0; padding: 24px 20px; }
}