/* css/style.css */

/* ============================================================
   Design tokens
   ============================================================ */
:root {
  /* Superficies */
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-hover: #f8f9fb;
  --border: #e6e8ec;

  /* Texto */
  --text: #16181d;
  --text-2: #5c6370;
  --muted: #8a919e;

  /* Acento y estados */
  --accent: #2a78d6;
  --accent-dark: #1c5cab;
  --accent-soft: #e8f1fc;
  --green: #067647;
  --green-soft: #e7f5ee;
  --red: #b42318;
  --red-soft: #fdeeec;

  /* Geometría y sombras */
  --radius: 14px;
  --radius-sm: 10px;
  --shadow:
    0 1px 2px rgba(16, 24, 40, 0.05),
    0 4px 12px rgba(16, 24, 40, 0.05);
  --shadow-lg:
    0 4px 8px rgba(16, 24, 40, 0.06),
    0 12px 24px rgba(16, 24, 40, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    sans-serif;
  margin: 0;
  background: var(--bg);
  min-height: 100vh;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* ============================================================
   Cabecera de la aplicación
   ============================================================ */
.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.85);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  box-shadow: 0 4px 10px rgba(42, 120, 214, 0.35);
}

.brand-icon svg {
  width: 22px;
  height: 22px;
}

.brand-text h1 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-text p {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
}

/* ============================================================
   Contenido principal
   ============================================================ */
.app-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 60px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Tarjeta base */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
}

.card-header h2 {
  margin: 0;
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

/* ============================================================
   Tarjetas KPI (resumen)
   ============================================================ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}

.kpi-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 22px;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.kpi-icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 12px;
}

.kpi-icon svg {
  width: 22px;
  height: 22px;
}

.kpi-body h3 {
  margin: 0 0 4px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.kpi-body p {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.kpi-ingresos .kpi-icon {
  background: var(--green-soft);
  color: var(--green);
}

.kpi-gastos .kpi-icon {
  background: var(--red-soft);
  color: var(--red);
}

.kpi-balance .kpi-icon {
  background: var(--accent-soft);
  color: var(--accent);
}

/* ============================================================
   Gráficos
   ============================================================ */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.chart-card .chart-wrapper {
  position: relative;
  height: 300px;
  padding: 18px 22px 22px;
}

/* ============================================================
   Tabla de transacciones
   ============================================================ */
.content-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 18px;
  align-items: start;
}

.table-controls {
  flex-wrap: wrap;
}

.controls {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.control {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
}

.table-scroll {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

th {
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: var(--surface-hover);
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr {
  transition: background 0.15s ease;
}

tbody tr:hover {
  background: var(--surface-hover);
}

/* Importes con signo */
.tipo-gasto,
.tipo-ingreso {
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.tipo-gasto {
  color: var(--red);
}

.tipo-ingreso {
  color: var(--green);
}

/* Etiqueta de categoría */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  color: white;
  font-size: 0.7rem;
  font-weight: 650;
  letter-spacing: 0.02em;
}

/* ============================================================
   Formulario
   ============================================================ */
.form-card form {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.campo {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.campo-row {
  display: flex;
  gap: 12px;
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.campo label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-2);
}

input,
select {
  font: inherit;
  font-size: 0.9rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  outline: none;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

input:hover,
select:hover {
  border-color: #cfd4dc;
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(42, 120, 214, 0.15);
}

input::placeholder {
  color: var(--muted);
}

select {
  cursor: pointer;
}

/* ============================================================
   Botones
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition:
    background 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.1s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn svg {
  width: 15px;
  height: 15px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 10px rgba(42, 120, 214, 0.3);
}

.btn-primary:hover {
  background: var(--accent-dark);
}

.btn-ghost {
  background: var(--surface);
  color: var(--text-2);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: var(--surface-hover);
  color: var(--text);
}

.row-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-editar,
.btn-borrar {
  cursor: pointer;
  font: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
  background: transparent;
  transition:
    background 0.2s ease,
    color 0.2s ease,
    border-color 0.2s ease;
}

.btn-editar {
  border: 1px solid #bcd5f3;
  color: var(--accent);
}

.btn-editar:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-borrar {
  border: 1px solid #f0c4be;
  color: var(--red);
}

.btn-borrar:hover {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1000px) {
  .content-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 800px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }

  .card-header.table-controls {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 560px) {
  .app-main {
    padding: 20px 14px 40px;
  }

  .header-inner {
    padding: 12px 14px;
  }

  .brand-text p {
    display: none;
  }

  .campo-row {
    flex-direction: column;
  }

  th,
  td {
    padding: 12px 14px;
  }
}