:root {
  /* Color Palette - Premium HSL tailored colors */
  --bg-color: #0b0f19;
  --panel-bg: rgba(22, 29, 49, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --accent-color: #6366f1;
  --accent-hover: #4f46e5;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --font-family: 'Outfit', sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-color: #f3f4f6;
    --panel-bg: rgba(255, 255, 255, 0.85);
    --border-color: rgba(0, 0, 0, 0.06);
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --accent-color: #4f46e5;
    --accent-hover: #3730a3;
    --success-color: #059669;
    --warning-color: #d97706;
    --danger-color: #dc2626;
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.5;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Glassmorphism utility */
.glass {
  background: var(--panel-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
}

.card {
  background: var(--panel-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
}

/* Sidebar Layout */
.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

@media (max-width: 768px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

aside {
  background: var(--panel-bg);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 2rem 1.5rem;
  gap: 2rem;
  backdrop-filter: blur(16px);
}

@media (max-width: 768px) {
  aside {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
  }
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

@media (max-width: 768px) {
  .nav-links {
    flex-direction: row;
    gap: 0.25rem;
  }
}

.nav-links a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: all 0.2s ease;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-links a.active {
  background: var(--accent-color);
  color: #fff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.user-profile {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

@media (max-width: 768px) {
  .user-profile {
    margin-top: 0;
    border-top: none;
    padding-top: 0;
  }
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-color);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

.user-info {
  display: flex;
  flex-direction: column;
}

.user-info .name {
  font-size: 0.875rem;
  font-weight: 600;
}

.user-info .role {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: capitalize;
}

.btn-logout {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  margin-left: auto;
  padding: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s ease;
}

.btn-logout:hover {
  color: var(--danger-color);
  background: rgba(239, 68, 68, 0.1);
}

/* Main Content Area */
main {
  padding: 2.5rem;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (max-width: 768px) {
  main {
    padding: 1.5rem;
  }
}

#viewContent {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Typography */
h1 {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

p {
  color: var(--text-secondary);
}

/* Login container styles */
.login-container {
  width: 100%;
  max-width: 440px;
  padding: 3rem 2.5rem;
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.login-header .logo {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.login-header h1 {
  font-size: 1.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-family: var(--font-family);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent-color);
  color: #fff;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.35);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.08);
}

.btn-danger {
  background-color: var(--danger-color);
  color: #fff;
}

.btn-danger:hover {
  background-color: #dc2626;
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 0.9375rem;
  transition: all 0.2s ease;
  outline: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent-color);
  background-color: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* Alerts */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  border: 1px solid transparent;
}

.alert-danger {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--danger-color);
  border-color: rgba(239, 68, 68, 0.15);
}

.hidden {
  display: none !important;
}

/* Dashboard Header Row */
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

@media (max-width: 640px) {
  .header-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Totales Panel Grid */
.totales-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

@media (max-width: 1024px) {
  .totales-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 580px) {
  .totales-grid {
    grid-template-columns: 1fr;
  }
}

.total-card {
  padding: 1.25rem;
}

.total-card .label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.total-card .value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.total-card .sub-info {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
  display: flex;
  justify-content: space-between;
}

.total-card.accent .value { color: var(--accent-color); }
.total-card.success .value { color: var(--success-color); }
.total-card.warning .value { color: var(--warning-color); }
.total-card.danger .value { color: var(--danger-color); }

/* Filters Section */
.filters-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  align-items: end;
}

.filters-bar .nl-search {
  grid-column: 1 / -1;
}

/* Table Design */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9375rem;
}

th {
  background-color: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  vertical-align: middle;
}

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

tr:hover td {
  background-color: rgba(255, 255, 255, 0.01);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
}

.badge-pagado { background: rgba(16, 185, 129, 0.1); color: var(--success-color); }
.badge-pendiente { background: rgba(245, 158, 11, 0.1); color: var(--warning-color); }
.badge-vencido { background: rgba(239, 68, 68, 0.1); color: var(--danger-color); }

.badge-pago_movil { background: rgba(99, 102, 241, 0.1); color: var(--accent-color); }
.badge-transferencia { background: rgba(255, 255, 255, 0.06); color: var(--text-primary); }

.badge-procesado { background: rgba(16, 185, 129, 0.1); color: var(--success-color); }
.badge-revision { background: rgba(245, 158, 11, 0.1); color: var(--warning-color); }
.badge-error { background: rgba(239, 68, 68, 0.1); color: var(--danger-color); }

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  width: 100%;
  max-width: 550px;
  transform: translateY(20px);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  max-height: 90vh;
  overflow-y: auto;
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.modal-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
}

.btn-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* Actions Menu cell */
.actions-cell {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

.btn-icon {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.375rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.btn-icon:hover {
  background-color: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
}

.btn-icon.delete:hover {
  color: var(--danger-color);
  background-color: rgba(239, 68, 68, 0.1);
}

/* View voucher link */
.voucher-link {
  color: var(--accent-color);
  text-decoration: none;
  font-size: 0.8125rem;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.voucher-link:hover {
  text-decoration: underline;
}