/* ===== Programa Especial Financiación - Sistema de estilos ===== */
:root {
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-success: #16a34a;
  --color-success-bg: #dcfce7;
  --color-warning: #ea580c;
  --color-danger: #dc2626;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-bg: #f1f5f9;
  --color-card: #ffffff;
  --color-border: #e2e8f0;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
  --transition: 0.2s ease;
}

* { box-sizing: border-box; }

body {
  font-family: "DM Sans", "Segoe UI", system-ui, sans-serif;
  margin: 0;
  padding: 24px;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  min-height: 100vh;
}

body.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-wrap {
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.login-wrap h1 {
  margin-bottom: 8px;
}

/* ===== Navegación ===== */
nav {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
  margin-bottom: 28px;
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

nav a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}

nav a:hover {
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary-hover);
}

/* ===== Títulos ===== */
h1 {
  margin: 0 0 24px;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
}

h2 {
  margin: 0 0 20px;
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-text);
}

h3 {
  margin: 0;
  padding: 16px 20px;
  font-size: 1.1rem;
  font-weight: 600;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

/* ===== Tarjetas / Secciones ===== */
.card {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 24px;
  transition: box-shadow var(--transition);
}

.card:hover {
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.card-body { padding: 20px; }

/* ===== Formularios ===== */
.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--color-text);
}

input[type="text"],
input[type="number"],
input[type="email"] {
  width: 100%;
  max-width: 400px;
  padding: 12px 16px;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}

input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

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

/* ===== Botones ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-size: 0.95rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-success {
  background: var(--color-success);
  color: white;
}

.btn-success:hover {
  background: #15803d;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn-outline:hover {
  background: var(--color-bg);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.85rem;
}

/* ===== Tablas ===== */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: var(--color-card);
}

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

th, td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  background: var(--color-bg);
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

tbody tr {
  transition: background var(--transition);
}

tbody tr:hover {
  background: rgba(241, 245, 249, 0.8);
}

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

.badge {
  display: inline-block;
  padding: 4px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 20px;
}

.badge-success {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.badge-warning {
  background: #fff7ed;
  color: var(--color-warning);
}

.badge-default {
  background: var(--color-bg);
  color: var(--color-text-muted);
}

.monto {
  font-weight: 600;
  color: var(--color-success);
}

/* ===== Búsqueda ===== */
.busqueda {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.busqueda input {
  max-width: 280px;
}

/* ===== Modal ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.modal-overlay.visible {
  display: flex;
}

.modal-box {
  background: var(--color-card);
  padding: 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 340px;
  max-width: 480px;
  width: 100%;
  animation: modalIn 0.3s ease;
}

.modal-box .form-group input {
  max-width: 100%;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.96) translateY(-10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-box h3 { margin: 0 0 16px; padding: 0; background: none; border: none; }

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

/* ===== Mensajes ===== */
.mensaje {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.mensaje-ok {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.mensaje-error {
  background: #fee2e2;
  color: var(--color-danger);
}

.vacio {
  padding: 40px 24px;
  text-align: center;
  color: var(--color-text-muted);
  background: var(--color-card);
  border-radius: var(--radius);
  margin-top: 16px;
  box-shadow: var(--shadow);
}

/* ===== Info cliente ===== */
.info-cliente {
  background: var(--color-card);
  padding: 20px 24px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.info-cliente p { margin: 6px 0; }

/* ===== Tabs ===== */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.tab {
  padding: 12px 20px;
  font-weight: 500;
  color: var(--color-text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color var(--transition);
}

.tab:hover { color: var(--color-primary); }

.tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ===== Paginación ===== */
.paginacion {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
  padding: 12px 0;
  flex-wrap: wrap;
}

.paginacion-info { color: var(--color-text-muted); font-size: 0.9rem; }

.paginacion-btns { display: flex; gap: 8px; }

/* ===== Layout grid para formularios ===== */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
  body { padding: 16px; }
  nav { flex-wrap: wrap; }
  th, td { padding: 10px 12px; font-size: 0.9rem; }
}