/**
 * Simple Invoicing System - Custom Styles
 * 
 * This file contains custom styles for the invoicing system,
 * extending the Bootstrap framework with application-specific styling.
 */

/* ========== General Styles ========== */
:root {
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --success-color: #2ecc71;
  --danger-color: #e74c3c;
  --warning-color: #f39c12;
  --info-color: #3498db;
  --light-color: #ecf0f1;
  --dark-color: #2c3e50;
  --gray-color: #95a5a6;
  --body-bg: #f8f9fa;
  --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --border-radius: 0.25rem;
}

body {
  background-color: var(--body-bg);
  color: #333;
  font-family: 'Roboto', 'Segoe UI', Arial, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  padding: 0 15px;
}

.content {
  flex: 1 0 auto;
}

.footer {
  flex-shrink: 0;
  margin-top: 2rem;
  padding: 1rem 0;
  background-color: var(--light-color);
  border-top: 1px solid #ddd;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

h1 {
  font-size: 1.8rem;
  border-bottom: 2px solid var(--secondary-color);
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
}

/* Links */
a {
  color: var(--secondary-color);
  transition: color 0.2s ease-in-out;
}

a:hover {
  color: var(--primary-color);
  text-decoration: none;
}

/* Cards */
.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.card-header {
  background-color: var(--primary-color);
  color: white;
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  border-bottom: none;
}

.card-header h2, 
.card-header h3, 
.card-header h4 {
  color: white;
  margin-bottom: 0;
  font-size: 1.25rem;
}

.card-body {
  padding: 1.25rem;
}

/* ========== Login Page ========== */
.login-container {
  max-width: 400px;
  margin: 5rem auto;
  padding: 1rem;
}

.login-container h1 {
  text-align: center;
  margin-bottom: 2rem;
}

.login-container .card {
  border-radius: var(--border-radius);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.login-container .card-header {
  text-align: center;
}

.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo img {
  max-height: 80px;
  margin-bottom: 1rem;
}

/* ========== Navigation & Header ========== */
.navbar {
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 0.5rem 1rem;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
}

.navbar-brand img {
  max-height: 40px;
}

.nav-link {
  padding: 0.5rem 1rem;
  font-weight: 500;
}

.nav-link i {
  margin-right: 0.5rem;
}

.navbar-dark .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.8);
}

.navbar-dark .navbar-nav .nav-link:hover {
  color: rgba(255, 255, 255, 1);
}

.navbar-dark .navbar-nav .active > .nav-link {
  color: white;
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: var(--border-radius);
}

/* ========== Dashboard ========== */
.stats-container {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -0.75rem 1.5rem;
}

.stat-card {
  flex: 1 0 250px;
  margin: 0.75rem;
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  background-color: white;
}

.stat-card-header {
  padding: 1rem;
  background-color: var(--primary-color);
  color: white;
  font-weight: 600;
  text-align: center;
}

.stat-card-body {
  padding: 1.5rem;
  text-align: center;
}

.stat-card-value {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}

.stat-card-link {
  margin-top: 0.5rem;
}

.stat-card-link a {
  color: var(--secondary-color);
  text-decoration: none;
}

/* Color variants */
.stat-card.stat-clients .stat-card-header {
  background-color: var(--info-color);
}

.stat-card.stat-services .stat-card-header {
  background-color: var(--success-color);
}

.stat-card.stat-invoices .stat-card-header {
  background-color: var(--warning-color);
}

.stat-card.stat-revenue .stat-card-header {
  background-color: var(--danger-color);
}

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

.form-group label {
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--dark-color);
}

.form-control {
  border: 1px solid #ced4da;
  border-radius: var(--border-radius);
  padding: 0.5rem 0.75rem;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

.input-group-text {
  background-color: var(--light-color);
  border: 1px solid #ced4da;
  color: var(--dark-color);
}

.form-text {
  color: var(--gray-color);
  font-size: 0.85rem;
}

.required-field::after {
  content: " *";
  color: var(--danger-color);
}

/* File upload */
.custom-file-label {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

/* ========== Tables ========== */
.table {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  margin-bottom: 1.5rem;
}

.table thead th {
  background-color: var(--primary-color);
  color: white;
  font-weight: 600;
  border-top: none;
  border-bottom: none;
  padding: 0.75rem 1rem;
}

.table thead th:first-child {
  border-top-left-radius: var(--border-radius);
}

.table thead th:last-child {
  border-top-right-radius: var(--border-radius);
}

.table tbody tr:hover {
  background-color: rgba(0, 0, 0, 0.03);
}

.table td {
  padding: 0.75rem 1rem;
  vertical-align: middle;
}

/* ========== Buttons ========== */
.btn {
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  transition: all 0.2s ease-in-out;
}

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

.btn-primary:hover {
  background-color: #1a252f;
  border-color: #1a252f;
}

.btn-secondary {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
}

.btn-secondary:hover {
  background-color: #2980b9;
  border-color: #2980b9;
}

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

.btn-success:hover {
  background-color: #27ae60;
  border-color: #27ae60;
}

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

.btn-danger:hover {
  background-color: #c0392b;
  border-color: #c0392b;
}

.btn-warning {
  background-color: var(--warning-color);
  border-color: var(--warning-color);
}

.btn-warning:hover {
  background-color: #e67e22;
  border-color: #e67e22;
}

.btn-info {
  background-color: var(--info-color);
  border-color: var(--info-color);
}

.btn-info:hover {
  background-color: #2980b9;
  border-color: #2980b9;
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1.125rem;
}

/* ========== Alerts ========== */
.alert {
  border: none;
  border-radius: var(--border-radius);
  padding: 1rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--card-shadow);
}

.alert-success {
  background-color: rgba(46, 204, 113, 0.2);
  color: #27ae60;
}

.alert-danger {
  background-color: rgba(231, 76, 60, 0.2);
  color: #c0392b;
}

.alert-warning {
  background-color: rgba(243, 156, 18, 0.2);
  color: #e67e22;
}

.alert-info {
  background-color: rgba(52, 152, 219, 0.2);
  color: #2980b9;
}

/* ========== Badges ========== */
.badge {
  padding: 0.4em 0.6em;
  font-weight: 600;
  border-radius: 0.25rem;
}

.badge-draft {
  background-color: var(--gray-color);
}

.badge-sent {
  background-color: var(--info-color);
}

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

.badge-cancelled {
  background-color: var(--danger-color);
}

/* ========== Invoice Styles ========== */
.invoice-header {
  margin-bottom: 2rem;
}

.invoice-title {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.invoice-details {
  display: flex;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.invoice-details-col {
  flex: 1;
}

.invoice-meta {
  text-align: right;
}

.invoice-id {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.invoice-date {
  color: var(--gray-color);
  margin-bottom: 0.25rem;
}

.invoice-due-date {
  color: var(--gray-color);
  margin-bottom: 0.25rem;
}

.invoice-status {
  display: inline-block;
  margin-top: 0.5rem;
}

.invoice-company-details,
.invoice-client-details {
  margin-bottom: 2rem;
}

.invoice-label {
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.invoice-value {
  margin-bottom: 0.25rem;
}

.invoice-table {
  margin-bottom: 2rem;
}

.invoice-table th {
  background-color: var(--light-color);
  color: var(--dark-color);
}

.invoice-totals {
  width: 100%;
  max-width: 400px;
  margin-left: auto;
  margin-bottom: 2rem;
}

.invoice-totals td {
  padding: 0.5rem 1rem;
}

.invoice-totals td:first-child {
  text-align: right;
  font-weight: 600;
}

.invoice-totals td:last-child {
  text-align: right;
}

.invoice-total-row {
  font-weight: 700;
  font-size: 1.1rem;
  background-color: var(--light-color);
}

.invoice-notes {
  margin-bottom: 2rem;
  padding: 1rem;
  background-color: var(--light-color);
  border-radius: var(--border-radius);
}

.invoice-notes-title {
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.invoice-actions {
  margin-top: 2rem;
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* ========== Invoice Form ========== */
.item-row {
  border-bottom: 1px solid #eee;
}

.item-row:last-child {
  border-bottom: none;
}

.remove-item {
  padding: 0.25rem 0.5rem;
  font-size: 1.25rem;
  line-height: 1;
}

/* ========== Dropdowns ========== */
.dropdown-menu {
  border: none;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  border-radius: var(--border-radius);
}

.dropdown-item {
  padding: 0.5rem 1rem;
}

.dropdown-item i {
  margin-right: 0.5rem;
  width: 1rem;
  text-align: center;
}

.dropdown-item:hover {
  background-color: var(--light-color);
}

.dropdown-item.text-danger:hover {
  background-color: rgba(231, 76, 60, 0.1);
}

/* ========== Pagination ========== */
.pagination {
  margin-bottom: 1.5rem;
}

.page-link {
  color: var(--primary-color);
  border: none;
  padding: 0.5rem 0.75rem;
  margin: 0 0.25rem;
  border-radius: var(--border-radius);
}

.page-link:hover {
  background-color: var(--light-color);
  color: var(--primary-color);
}

.page-item.active .page-link {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

/* ========== Filter Form ========== */
.filter-form {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  margin-bottom: 1.5rem;
}

.filter-form .form-group {
  flex: 1 0 200px;
  margin-bottom: 0;
}

.filter-form .btn {
  margin-bottom: 0;
}

/* ========== Content Header ========== */
.content-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.content-header h1 {
  margin-bottom: 0;
  border-bottom: none;
}

/* ========== Responsive Styles ========== */
@media (max-width: 767.98px) {
  .content-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .content-header h1 {
    margin-bottom: 1rem;
  }
  
  .stats-container {
    flex-direction: column;
  }
  
  .invoice-details {
    flex-direction: column;
  }
  
  .invoice-meta {
    text-align: left;
    margin-top: 1.5rem;
  }
  
  .invoice-actions {
    flex-direction: column;
  }
  
  .invoice-actions .btn {
    width: 100%;
    margin-bottom: 0.5rem;
  }
  
  .filter-form {
    flex-direction: column;
  }
  
  .filter-form .form-group {
    width: 100%;
    margin-bottom: 1rem;
  }
  
  .table-responsive {
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
  }
}

/* ========== Print Styles ========== */
@media print {
  body {
    background-color: white;
  }
  
  .navbar, .footer, .invoice-actions, .no-print {
    display: none !important;
  }
  
  .container {
    width: 100%;
    max-width: 100%;
    padding: 0;
    margin: 0;
  }
  
  .card {
    box-shadow: none;
    border: none;
  }
  
  .card-body {
    padding: 0;
  }
  
  .invoice-header, .invoice-details, .invoice-table, .invoice-totals, .invoice-notes {
    page-break-inside: avoid;
  }
}