:root {
  --bg: #f5f6fa;
  --panel: #ffffff;
  --text: #1a1d29;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --income: #10b981;
  --expense: #ef4444;
  --debt: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.08);
}

:root[data-theme="dark"] {
  --bg: #12131a;
  --panel: #1a1c26;
  --text: #e8e9ee;
  --text-muted: #9498a8;
  --border: #2a2d3a;
  --accent: #818cf8;
  --accent-hover: #a5b4fc;
  --income: #34d399;
  --expense: #f87171;
  --debt: #fbbf24;
  --danger: #f87171;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 6px rgba(0, 0, 0, 0.35);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12131a;
    --panel: #1a1c26;
    --text: #e8e9ee;
    --text-muted: #9498a8;
    --border: #2a2d3a;
    --accent: #818cf8;
    --accent-hover: #a5b4fc;
    --income: #34d399;
    --expense: #f87171;
    --debt: #fbbf24;
    --danger: #f87171;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  overflow-x: hidden;
}

.app-shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0 12px;
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; }
.brand-mark { font-size: 1.4rem; }

.topbar-actions { display: flex; align-items: center; gap: 10px; }
.topbar-user { display: none; }
@media (min-width: 480px) {
  .topbar-user { display: inline; }
}

.icon-btn {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 8px;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.95rem;
  transition: background 0.15s;
  text-decoration: none;
}
.icon-btn:hover { background: var(--border); }
.icon-btn.danger { color: var(--danger); border-color: transparent; background: transparent; }
.icon-btn.danger:hover { background: color-mix(in srgb, var(--danger) 15%, transparent); }

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
  overflow-x: auto;
}

.tab-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 10px 16px;
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-btn:hover:not(.active) { color: var(--text); }

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}
.panel-header h1 { font-size: 1.3rem; margin: 0; }

.month-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px 8px;
}
.month-label { font-weight: 600; min-width: 120px; text-align: center; }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  box-shadow: var(--shadow);
}
.card-label { color: var(--text-muted); font-size: 0.82rem; margin-bottom: 6px; }
.card-value { font-size: 1.5rem; font-weight: 700; }
.card-value.income { color: var(--income); }
.card-value.expense { color: var(--expense); }
.card-value.debt { color: var(--debt); }

.panel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
@media (max-width: 760px) {
  .panel-grid { grid-template-columns: 1fr; }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
  min-width: 0;
}
.panel h2 { font-size: 1rem; margin: 0 0 14px; }

.panel-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.panel-title-row h2 { margin: 0; }

.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
}
.link-btn:hover { color: var(--accent-hover); }

.chart-svg { width: 100%; height: auto; display: block; }
.chart-svg.donut { max-width: 200px; margin: 0 auto; }

.legend-inline { display: flex; gap: 14px; font-size: 0.8rem; color: var(--text-muted); }
.legend-inline .dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; margin-right: 5px; }

.donut-wrap { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.legend { flex: 1; min-width: 140px; display: flex; flex-direction: column; gap: 8px; }
.legend-item { display: flex; align-items: center; gap: 8px; font-size: 0.82rem; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.legend-label { flex: 1; }
.legend-value { color: var(--text-muted); }

.empty-hint { color: var(--text-muted); font-size: 0.88rem; text-align: center; padding: 20px 0; }

.mini-list { display: flex; flex-direction: column; gap: 14px; }
.mini-item-top { display: flex; justify-content: space-between; font-size: 0.88rem; margin-bottom: 6px; }

.progress-track {
  height: 8px;
  background: var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.progress-fill { height: 100%; border-radius: 6px; transition: width 0.2s; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  align-items: end;
}
.field { display: flex; flex-direction: column; gap: 6px; font-size: 0.82rem; color: var(--text-muted); }
.field-wide { grid-column: span 2; }
.field input, .field select {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 10px;
  font-size: 0.9rem;
}
.field input:focus, .field select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.field-group.toggle-group { flex-direction: row; gap: 8px; }
.toggle-btn {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-muted);
  border-radius: 8px;
  padding: 9px 14px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
}
.toggle-btn.active.expense { background: color-mix(in srgb, var(--expense) 15%, transparent); color: var(--expense); border-color: var(--expense); }
.toggle-btn.active.income { background: color-mix(in srgb, var(--income) 15%, transparent); color: var(--income); border-color: var(--income); }

.btn {
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-sm { padding: 7px 12px; font-size: 0.8rem; }

.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
.data-table th {
  text-align: left;
  color: var(--text-muted);
  font-weight: 500;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.data-table td { padding: 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.data-table td.income { color: var(--income); font-weight: 600; }
.data-table td.expense { color: var(--expense); font-weight: 600; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
}
.badge.income { background: color-mix(in srgb, var(--income) 18%, transparent); color: var(--income); }
.badge.expense { background: color-mix(in srgb, var(--expense) 18%, transparent); color: var(--expense); }

.stack { display: flex; flex-direction: column; gap: 14px; }

.expandable-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.expandable-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.expandable-title { font-weight: 600; }
.text-muted { color: var(--text-muted); }
.small { font-size: 0.8rem; }

.inline-form { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.inline-form input[type="text"],
.inline-form input[type="number"],
.inline-form input[type="date"] {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 0.85rem;
  flex: 1;
  min-width: 120px;
}
.inline-form input[type="color"] {
  width: 32px;
  height: 32px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  cursor: pointer;
  flex: none;
}

.payments-details { font-size: 0.82rem; }
.payments-details summary { cursor: pointer; color: var(--text-muted); }
.payment-list { margin: 8px 0 0; padding-left: 18px; color: var(--text-muted); }

/* Categorías (Configuración) */
.category-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.category-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.category-row input[type="text"] {
  flex: 1;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 0.85rem;
}
.category-row input[type="color"] {
  width: 32px;
  height: 32px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  cursor: pointer;
  flex: none;
}
.category-add-form { border-top: 1px dashed var(--border); padding-top: 12px; }

/* Login / setup */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.auth-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 32px;
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.auth-brand { margin-bottom: 4px; }
.auth-card h1 { margin: 0; font-size: 1.3rem; }
.auth-card .field input { width: 100%; }
.auth-submit { width: 100%; margin-top: 6px; }
.auth-error {
  background: color-mix(in srgb, var(--danger) 15%, transparent);
  color: var(--danger);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.85rem;
}

/* Estado de carga / errores */
.boot-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.toast-error {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--danger);
  color: white;
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 0.85rem;
  box-shadow: var(--shadow);
  z-index: 999;
}