:root {
  --bg: #101d18;
  --bg-card: #17281f;
  --bg-card-alt: #1c3026;
  --border: #2c4438;
  --text: #eef3f1;
  --muted: #93aa9e;
  --accent: #d4af37;
  --brand: #1f7a5c;
  --brand-light: #2fa377;
  --pos: #5cc38a;
  --neg: #e0776e;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  padding-bottom: 72px;
}

.topbar {
  background: var(--brand);
  padding: 14px 18px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-weight: 700; font-size: 1.1rem; letter-spacing: 0.2px; }

.tabbar {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 6px 8px;
  position: sticky;
  top: 52px;
  z-index: 9;
}
.nav-item {
  flex: 0 0 auto;
  color: var(--muted);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.9rem;
  white-space: nowrap;
}
.nav-item.active { background: var(--brand); color: var(--text); }

.content { padding: 16px; max-width: 960px; margin: 0 auto; }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
  min-width: 0;
}
.card h3 { margin-top: 0; }

.card-warning {
  border-color: var(--accent);
  background: #241d0d;
}
.card-warning a { color: var(--accent); }

.dash-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 720px) {
  .dash-grid { grid-template-columns: 1fr 1fr; }
}

.card-donut { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.donut { width: 220px; height: 220px; }
.donut-total { fill: var(--text); font-size: 20px; font-weight: 700; }
.donut-label { fill: var(--muted); font-size: 11px; }
.donut-empty { fill: var(--muted); font-size: 14px; }

.legend { width: 100%; display: flex; flex-direction: column; gap: 6px; }
.legend-row { display: grid; grid-template-columns: 14px 1fr auto auto; align-items: center; gap: 8px; font-size: 0.9rem; }
.legend-dot { width: 12px; height: 12px; border-radius: 50%; }
.legend-value { color: var(--muted); }
.legend-pct { min-width: 48px; text-align: right; }

.kpi-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed var(--border); }
.kpi-row:last-of-type { border-bottom: none; }
.pos { color: var(--pos); }
.neg { color: var(--neg); }
.muted { color: var(--muted); font-size: 0.85rem; }

.ytd-compare { display: flex; gap: 24px; margin: 12px 0; }
.ytd-box { display: flex; flex-direction: column; gap: 4px; }
.ytd-label { color: var(--muted); font-size: 0.85rem; }
.ytd-value { font-size: 1.4rem; font-weight: 700; }

.risk-row { display: grid; grid-template-columns: 110px 1fr 40px; align-items: center; gap: 10px; margin: 10px 0; }
.risk-track { background: #1c2b27; border-radius: 999px; height: 10px; overflow: hidden; }
.risk-fill { background: var(--accent); height: 100%; }
.risk-value { text-align: right; }

.inline-form { display: flex; gap: 8px; margin-bottom: 12px; }
.inline-form input { flex: 1; }

.stacked-form { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.stacked-form label { display: flex; flex-direction: column; gap: 4px; font-size: 0.85rem; color: var(--muted); }

input, select, button {
  background: #142621;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 10px;
  font-size: 0.95rem;
  max-width: 100%;
}
button {
  background: var(--brand);
  cursor: pointer;
  border: none;
  font-weight: 600;
}
button:hover { background: var(--brand-light); }

.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  padding: 0;
  font-size: 0.85rem;
  cursor: pointer;
}
.link-btn.danger { color: var(--neg); }

.simple-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.simple-list li { display: flex; justify-content: space-between; border-bottom: 1px dashed var(--border); padding: 6px 0; }

.cat-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 900px) { .cat-grid { grid-template-columns: 320px 1fr; } }

.table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }

.table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.table th, .table td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--border); }
.table th { color: var(--muted); font-weight: 600; }

.table-history { font-size: 0.95rem; }
.table-history thead th {
  color: var(--text);
  background: var(--bg-card-alt);
  padding: 12px 10px;
  border-bottom: 2px solid var(--brand-light);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 0.78rem;
}
.table-history tbody td { padding: 12px 10px; }
.table-history tbody tr:nth-child(odd) { background: rgba(255, 255, 255, 0.02); }
.table-history tbody tr:hover { background: var(--bg-card-alt); }

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.section-head h3 { margin: 0; }

.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }
.file-btn {
  display: inline-flex; align-items: center;
  background: var(--brand); color: var(--text);
  padding: 9px 14px; border-radius: 8px; cursor: pointer; font-weight: 600; font-size: 0.95rem;
}

/* Modal */
dialog.app-modal {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  width: min(480px, 92vw);
  max-height: 88vh;
  overflow-y: auto;
}
dialog.app-modal::backdrop { background: rgba(0, 0, 0, 0.55); }
.app-modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.app-modal-head h3 { margin: 0; }

/* Candado de acceso */
.lock-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}
.lock-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: min(360px, 100%);
}
.lock-card h2 { margin-top: 0; }

/* Responsive: pantallas estrechas (smartphone) */
@media (max-width: 560px) {
  .content { padding: 12px; }
  .card { padding: 14px; }
  .topbar { padding: 12px 14px; }
  .brand { font-size: 1rem; }
  .donut { width: 180px; height: 180px; }
  .ytd-compare { flex-direction: column; gap: 12px; }
  .risk-row { grid-template-columns: 88px 1fr 34px; gap: 6px; }
  .inline-form { flex-direction: column; align-items: stretch; }
  .section-head { flex-wrap: wrap; gap: 8px; }
  .table, .table-history { font-size: 0.82rem; }
  .table th, .table td, .table-history tbody td { padding: 8px 6px; }
}