/*******************************************************************************
* Invoice Management System - Professional Edition                            *
*                                                                              *
* Version: 2.0                                                                 *
* Enhanced Professional UI/UX Design                                          *
*******************************************************************************/

body {
  padding: 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif !important;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Apply Inter font to all elements */
*, *::before, *::after {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif !important;
}

/* Enhanced Button Styles - Subtle */
.btn-primary {
  background: #667eea;
  border: none;
  border-radius: 6px;
  padding: 10px 20px;
  font-weight: 500;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
  letter-spacing: 0.3px;
}

.btn-primary:hover {
  background: #5568d3;
  box-shadow: 0 2px 6px rgba(102, 126, 234, 0.3);
  transform: translateY(-1px);
}

.btn-danger {
  background: #ef4444;
  border: none;
  border-radius: 6px;
  padding: 10px 20px;
  font-weight: 500;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
  letter-spacing: 0.3px;
}

.btn-danger:hover {
  background: #dc2626;
  box-shadow: 0 2px 6px rgba(239, 68, 68, 0.3);
  transform: translateY(-1px);
}

.btn-success {
  background: #10b981;
  border: none;
  border-radius: 6px;
  padding: 10px 20px;
  font-weight: 500;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
  letter-spacing: 0.3px;
}

.btn-success:hover {
  background: #059669;
  box-shadow: 0 2px 6px rgba(16, 185, 129, 0.3);
  transform: translateY(-1px);
}

.btn-default {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  padding: 10px 20px;
  font-weight: 500;
  color: #1f2937;
  transition: all 0.2s ease;
  letter-spacing: 0.3px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-default:hover {
  background: #f9fafb;
  border-color: #667eea;
  color: #667eea;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Enhanced Panel Styles - Subtle */
.panel {
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
  background: #ffffff;
  overflow: hidden;
}

.panel:hover {
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  border-color: #d1d5db;
}

.panel-default {
  border: 1px solid #e5e7eb;
}

.panel-heading {
  background: #f9fafb;
  color: #1f2937;
  padding: 16px 20px;
  border-bottom: 1px solid #e5e7eb;
  border-radius: 8px 8px 0 0;
}

.panel-heading h4 {
  color: #1f2937;
  font-weight: 600;
  margin: 0;
  font-size: 16px;
  text-transform: none;
  letter-spacing: 0.3px;
}

.panel-login {
  background-color: #ffffff !important;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  border-radius: 16px;
  overflow: hidden;
}

.clear {
  clear: both;
}

.login-panel {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  margin-top: 150px;
  border-radius: 16px;
  animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.panel-body {
  padding: 35px 35px 25px 35px;
  background: #ffffff;
}

.panel-heading {
  padding: 20px 30px;
}

.float-left {
  float: left !important;
}

.float-right {
  float: right !important;
}

.margin-bottom {
  margin-bottom: 1em;
}

.margin-top {
  margin-top: 1em;
}

.padding-right {
  padding-right: 15px;
}

.no-padding-right {
  padding-right: 0;
}

.no-margin-bottom {
  margin-bottom: 0;
}

.user {
  margin-top: 8px;
  margin-right: 10px;
}

/* Enhanced Form Styles - Subtle */
.form-control {
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 14px;
  transition: all 0.2s ease;
  background: #ffffff;
}

.form-control:focus {
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.08);
  background: #ffffff;
  outline: none;
}

.form-group label {
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 8px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input-group-addon {
  background: #667eea;
  border: 1px solid #667eea;
  color: #ffffff;
  border-radius: 6px 0 0 6px;
  padding: 10px 14px;
}

/* Ensure input-group-addon has primary color background */
.input-group .input-group-addon {
  background-color: #667eea !important;
  color: #ffffff !important;
  border-color: #667eea !important;
}

.input-group .form-control:first-child {
  border-radius: 0 8px 8px 0;
}

input.shipping {
  text-align: right;
}

.custom_email_textarea {
  width: 100%;
  padding: 12px;
  border: 2px solid #e0e6ed;
  border-radius: 8px;
  font-size: 14px;
  transition: all 0.3s ease;
}

.custom_email_textarea:focus {
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  outline: none;
}

#invoice_status,
#invoice_type {
  margin-top: 23px;
}

.invoice_product_qty {
  width: 100%;
  text-align: left;
}
.invoice_type {
  text-transform: capitalize;
}

.select-customer {
  margin-top: 10px;
}

.delete-row {
  float: left;
  margin-top: 4px;
}

.item-select {
  float: left;
  margin: 4px;
}

.item-input {
  float: left;
  width: 65%;
  margin-left: 10px;
}

.textarea {
  width: 100%;
}

.textarea textarea {
  width: 100%;
  padding: 10px;
  resize: none;
}

/* Other styles */
strong.shipping {
  margin-top: 4px;
  display: block;
}

/* Progress bar */
.progress .bar {
  display: block;
  height: 20px;
}
.error-list {
  display: none;
}
.progress.progress-danger .bar {
  background-color: #c13333;
}
.progress.progress-warning .bar {
  background-color: #c1bf33;
}
.progress.progress-success .bar {
  background-color: #33c133;
}

.login-form {
  margin-top: 100px;
}

/* Alert Messages Enhancement */
.alert {
  border: none;
  border-radius: 10px;
  padding: 16px 20px;
  font-weight: 500;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  animation: slideDown 0.4s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.alert-success {
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #6ee7b7;
}

.alert-warning {
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fcd34d;
}

.alert-info {
  background: #dbeafe;
  color: #1e40af;
  border: 1px solid #93c5fd;
}

/* DataTables Enhancement - Subtle */
.table {
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid #e5e7eb;
}

.table thead th {
  background: #667eea;
  color: #ffffff;
  border: none;
  padding: 14px 15px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 11px;
}

.table tbody tr {
  transition: all 0.15s ease;
  border-bottom: 1px solid #e5e7eb;
}

.table tbody tr:hover {
  background-color: #f9fafb;
}

.table tbody td {
  padding: 14px 15px;
  vertical-align: middle;
  border-top: none;
}

/* Content Wrapper Enhancement */
.content-wrapper {
  background: transparent;
  min-height: calc(100vh - 50px);
}

.content {
  padding: 25px;
}

/* Box Shadow for Cards */
.box {
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  border: none;
  transition: all 0.3s ease;
}

.box:hover {
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.12);
}

/* Sidebar Menu Enhancement */
.sidebar-menu > li.active > a {
  border-left: 4px solid #38ef7d;
  background: rgba(102, 126, 234, 0.1);
}

.sidebar-menu > li > a:hover {
  background: rgba(102, 126, 234, 0.08);
  border-left: 4px solid #667eea;
}

/* Main Header Enhancement */
.main-header .logo {
  font-weight: 700;
  letter-spacing: 1px;
}

.main-header .navbar {
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

/* User Menu Dropdown */
.dropdown-menu {
  border: none;
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  padding: 10px 0;
}

.dropdown-menu > li > a {
  padding: 12px 20px;
  transition: all 0.3s ease;
}

.dropdown-menu > li > a:hover {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #ffffff;
}

/* Smooth Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

/* Loading Animation */
.btn.disabled, .btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Professional Spacing */
.margin-bottom-lg {
  margin-bottom: 30px;
}

.margin-top-lg {
  margin-top: 30px;
}

.padding-lg {
  padding: 30px;
}

/* Professional Text Styles */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: #2c3e50;
  letter-spacing: 0.5px;
}

/* Responsive enhancements */
@media (max-width: 768px) {
  .panel-body {
    padding: 20px;
  }
  
  .content {
    padding: 15px;
  }
}