/* =============================================
   MODERN GLOWING THEME FOR BILLING SYSTEM
   ============================================= */

/* Modern Sidebar Menu Styles - Light Theme */
.sidebar-menu li a {
  color: #2c3e50 !important;
  padding: 12px 15px !important;
  border-left: 3px solid transparent !important;
  transition: all 0.3s ease !important;
  font-weight: 500;
  font-size: 14px;
}

.sidebar-menu li a:hover {
  color: #667eea !important;
  background: linear-gradient(90deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.1) 100%) !important;
  border-left-color: #667eea !important;
  padding-left: 20px !important;
  box-shadow: inset 0 0 20px rgba(102, 126, 234, 0.08);
}

.sidebar-menu li.active > a {
  color: #ffffff !important;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
  border-left-color: #667eea !important;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

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

.sidebar-menu li a i {
  transition: all 0.3s ease;
  color: #6c7a89;
}

.sidebar-menu li a:hover i {
  color: #667eea;
  transform: scale(1.1);
}

.sidebar-menu li.active > a i {
  color: #ffffff;
}

/* Modern Sidebar Scrollbar */
.sidebar::-webkit-scrollbar {
  width: 6px;
}

.sidebar::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.1);
}

.sidebar::-webkit-scrollbar-thumb {
  background: rgba(102, 126, 234, 0.5);
  border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
  background: rgba(102, 126, 234, 0.7);
}

/* Sidebar Header Enhanced */
.sidebar-menu > .header {
  color: rgba(255, 255, 255, 0.7);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 15px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* CSS Variables for Modern Theme */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --danger-gradient: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    --info-gradient: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
    --dark-bg: #0f0f23;
    --card-bg: rgba(255, 255, 255, 0.95);
    --sidebar-bg: linear-gradient(180deg, #5b8fc7 0%, #4a7db8 100%);
    --glow-primary: 0 0 20px rgba(102, 126, 234, 0.5);
    --glow-secondary: 0 0 20px rgba(240, 147, 251, 0.5);
    --glow-success: 0 0 20px rgba(79, 172, 254, 0.5);
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    --border-radius: 15px;
    --transition: all 0.3s ease;
}

/* Global Styles */
body {
    font-family: 'Poppins', 'Source Sans Pro', sans-serif !important;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-attachment: fixed;
    overflow-x: hidden;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(240, 147, 251, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(79, 172, 254, 0.3) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
    animation: bgShift 15s ease-in-out infinite alternate;
}

@keyframes bgShift {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

/* Login Page Modern Styles */
.login-page {
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%) !important;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-box {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), var(--glow-primary);
    padding: 40px;
    width: 420px;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.login-box-body {
    background: rgba(255, 255, 255, 0.95) !important;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.login-box-msg {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 20px;
}

.login-box .form-control {
    border-radius: 10px;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    transition: var(--transition);
    font-size: 14px;
}

.login-box .form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.login-box .btn {
    border-radius: 10px;
    padding: 12px;
    font-weight: 600;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--primary-gradient) !important;
    border: none !important;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-success {
    background: var(--success-gradient) !important;
    border: none !important;
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.4);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 172, 254, 0.6);
}

/* Sidebar Modern Styles */
.main-sidebar {
    background: var(--sidebar-bg) !important;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
}

.sidebar-menu > li > a {
    padding: 15px 20px;
    color: rgba(255, 255, 255, 0.8);
    border-radius: 10px;
    margin: 5px 10px;
    transition: var(--transition);
}

.sidebar-menu > li > a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    transform: translateX(5px);
}

.sidebar-menu > li.active > a {
    background: var(--primary-gradient);
    color: #fff;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.sidebar-menu > li > a > .fa,
.sidebar-menu > li > a > .glyphicon,
.sidebar-menu > li > a > .ion {
    width: 25px;
    font-size: 16px;
}

.sidebar-menu li.header {
    color: rgba(255, 255, 255, 0.5);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 15px 25px;
}

.treeview-menu > li > a {
    padding: 10px 15px 10px 45px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.treeview-menu > li > a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.treeview-menu > li.active > a {
    color: #fff;
    font-weight: 600;
}

/* Header Modern Styles */
.main-header {
    background: rgba(255, 255, 255, 0.95) !important;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.main-header .logo {
    background: var(--primary-gradient) !important;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.3);
}

.navbar-nav > .user-menu > .dropdown-toggle {
    background: transparent;
}

.navbar-nav > .user-menu > .dropdown-toggle:hover {
    background: rgba(102, 126, 234, 0.1);
}

/* Content Wrapper */
.content-wrapper {
    background: rgba(255, 255, 255, 0.9);
    min-height: 100vh;
}

/* Modern Card/Box Styles */
.box {
    border-radius: var(--border-radius) !important;
    border: none !important;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    margin-bottom: 25px;
    overflow: hidden;
    transition: var(--transition);
}

.box:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.box-header {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    padding: 20px;
}

.box-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.box-primary {
    border-top: 4px solid #667eea !important;
}

.box-body {
    padding: 20px;
}

/* Small Box (Stat Cards) - Modern Glowing Style */
.small-box {
    border-radius: var(--border-radius) !important;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.small-box:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.small-box .inner {
    padding: 20px;
    z-index: 1;
}

.small-box h3 {
    font-size: 28px;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.small-box p {
    font-size: 14px;
    opacity: 0.9;
}

.small-box .icon {
    font-size: 80px;
    opacity: 0.3;
    transition: var(--transition);
}

.small-box:hover .icon {
    font-size: 90px;
    opacity: 0.4;
    transform: rotate(10deg);
}

/* Gradient Small Boxes */
.small-box.bg-gradient-primary {
    background: var(--primary-gradient) !important;
}

.small-box.bg-gradient-success {
    background: var(--success-gradient) !important;
}

.small-box.bg-gradient-warning {
    background: var(--warning-gradient) !important;
}

.small-box.bg-gradient-danger {
    background: var(--secondary-gradient) !important;
}

.small-box.bg-gradient-info {
    background: var(--info-gradient) !important;
}

/* Info Box Modern */
.info-box {
    border-radius: var(--border-radius);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    margin-bottom: 20px;
}

.info-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.info-box .info-box-icon {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    font-size: 40px;
    line-height: 90px;
    width: 90px;
}

/* Buttons Modern */
.btn {
    border-radius: 8px;
    padding: 10px 20px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn-flat {
    border-radius: 8px;
}

/* Table Modern Styles */
.table {
    background: #fff;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.table > thead > tr > th {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    color: var(--text-primary);
    font-weight: 600;
    border: none;
    padding: 15px;
}

.table > tbody > tr > td {
    vertical-align: middle;
}

.table > tbody > tr:hover {
    background: rgba(102, 126, 234, 0.05);
}

.table-striped > tbody > tr:nth-of-type(odd) {
    background: rgba(0, 0, 0, 0.02);
}

/* Form Controls Modern */
.form-control {
    border-radius: 8px;
    padding: 10px 15px;
    border: 2px solid #e0e0e0;
    transition: var(--transition);
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

/* Alert Modern */
.alert {
    border-radius: var(--border-radius);
    border: none;
    padding: 15px 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.alert-success {
    background: linear-gradient(135deg, #a8edea 0%, #00b894 100%);
    color: #fff;
}

.alert-danger {
    background: linear-gradient(135deg, #ff7675 0%, #d63031 100%);
    color: #fff;
}

.alert-warning {
    background: linear-gradient(135deg, #ffeaa7 0%, #fdcb6e 100%);
    color: #2d3436;
}

.alert-info {
    background: linear-gradient(135deg, #74b9ff 0%, #0984e3 100%);
    color: #fff;
}

/* Footer Modern */
.main-footer {
    background: rgba(255, 255, 255, 0.95);
    border-top: 1px solid rgba(102, 126, 234, 0.2);
    padding: 15px 20px;
    color: var(--text-secondary);
    font-size: 13px;
}

/* Modal Modern */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    background: var(--primary-gradient);
    color: #fff;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    padding: 20px;
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    padding: 15px 25px;
    background: rgba(0, 0, 0, 0.02);
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Scrollbar Modern */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
}

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

/* Badge Modern */
.label {
    border-radius: 20px;
    padding: 5px 12px;
    font-weight: 500;
}

/* Progress Bar Modern */
.progress {
    border-radius: 10px;
    height: 10px;
    background: rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.progress-bar {
    border-radius: 10px;
    background: var(--primary-gradient);
    transition: width 0.6s ease;
}

/* Dropdown Modern */
.dropdown-menu {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
    padding: 10px 0;
}

.dropdown-menu > li > a {
    padding: 10px 20px;
    transition: var(--transition);
}

.dropdown-menu > li > a:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
}

/* User Panel Modern */
.user-panel {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.user-panel > .image > img {
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.2);
}

/* Content Header Modern */
.content-header {
    background: rgba(255, 255, 255, 0.9);
    padding: 20px;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    margin-bottom: 20px;
}

.content-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

/* Breadcrumb Modern */
.breadcrumb {
    background: transparent;
    border-radius: 0;
}

/* Nav Tabs Modern */
.nav-tabs-custom {
    border-radius: var(--border-radius);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.nav-tabs-custom > .nav-tabs > li.active {
    border-top-color: #667eea;
}

.nav-tabs-custom > .nav-tabs > li > a {
    border-radius: 0;
    transition: var(--transition);
}

.nav-tabs-custom > .nav-tabs > li.active > a {
    color: #667eea;
    font-weight: 600;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .login-box {
        width: 90%;
        margin: 20px;
    }
    
    .small-box {
        margin-bottom: 15px;
    }
    
    .sidebar-menu > li > a {
        padding: 12px 15px;
        margin: 3px 8px;
    }
}

/* Animation for page elements */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.box {
    animation: fadeInUp 0.5s ease forwards;
}

/* Glow effect on hover for cards */
.glow-on-hover {
    transition: var(--transition);
}

.glow-on-hover:hover {
    box-shadow: 0 0 30px rgba(102, 126, 234, 0.5);
}

/* Custom scrollbar for sidebar */
.sidebar::-webkit-scrollbar {
    width: 4px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
}

/* Toast/Notification Modern */
.swal-overlay {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.swal-modal {
    border-radius: var(--border-radius);
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.3);
}

.swal-button {
    border-radius: 8px;
    padding: 10px 30px;
    font-weight: 600;
    transition: var(--transition);
}

.swal-button--confirm {
    background: var(--primary-gradient);
}

.swal-button--confirm:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* Checkbox and Radio Modern */
.icheckbox_minimal-blue,
.iradio_minimal-blue {
    border-radius: 3px;
}

/* DataTable Modern */
.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter {
    margin-bottom: 15px;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
    background: var(--primary-gradient) !important;
    color: #fff !important;
    border: none;
    border-radius: 5px;
}

/* Select2 Modern */
.select2-container--default .select2-selection--single {
    border-radius: 8px;
    border: 2px solid #e0e0e0;
    padding: 8px 12px;
    transition: var(--transition);
}

.select2-container--default .select2-selection--single:focus,
.select2-container--default.select2-container--focus .select2-selection--single {
    border-color: #667eea;
}

.select2-container--default .select2-results__option--highlighted[aria-selected] {
    background: var(--primary-gradient);
}

/* =============================================
   RESPONSIVE FORM CONTROLS
   ============================================= */

/* Base form-control styles */
.form-control {
    border-radius: 8px;
    padding: 10px 14px;
    border: 2px solid #d2d6de;
    transition: all 0.3s ease;
    font-size: 14px;
    height: auto;
    line-height: 1.5;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

/* Select form-control */
select.form-control {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23636e72' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* Input group addons */
.input-group-addon {
    border-radius: 8px 0 0 8px;
    padding: 10px 14px;
    background: #f5f6fa;
    border: 2px solid #d2d6de;
    border-right: none;
}

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

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

/* Form group spacing */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    font-weight: 500;
    margin-bottom: 8px;
    color: #2d3436;
}

/* Responsive adjustments for tablets */
@media (max-width: 991px) {
    .form-control {
        padding: 10px 14px;
        font-size: 14px;
    }
    
    .form-group {
        margin-bottom: 18px;
    }
}

/* Responsive adjustments for mobile */
@media (max-width: 767px) {
    .form-control {
        padding: 12px 14px;
        font-size: 16px; /* Prevents zoom on iOS Safari */
        border-radius: 8px;
    }
    
    .form-group {
        margin-bottom: 16px;
    }
    
    .form-group label {
        font-size: 14px;
    }
    
    /* Adjust input group for mobile */
    .input-group .form-control,
    .input-group-addon {
        padding: 12px 14px;
    }
    
    /* Stack form elements vertically on mobile */
    .form-horizontal .control-label {
        text-align: left;
        margin-bottom: 8px;
    }
    
    /* Full width for form elements */
    .form-control,
    select.form-control,
    textarea.form-control {
        width: 100%;
    }
    
    /* Adjust select2 for mobile */
    .select2-container--default .select2-selection--single {
        padding: 12px 36px 12px 12px;
        font-size: 16px;
    }
    
    /* Adjust datepicker for mobile */
    .datepicker table tr td,
    .datepicker table tr th {
        padding: 8px 12px;
    }
}

/* Extra small screens */
@media (max-width: 480px) {
    .form-control {
        padding: 10px 12px;
        font-size: 16px;
    }
    
    .input-group .form-control,
    .input-group-addon {
        padding: 10px 12px;
    }
    
    /* Smaller labels on very small screens */
    .form-group label {
        font-size: 13px;
    }
}

/* Landscape mobile */
@media (max-width: 767px) and (orientation: landscape) {
    .form-control {
        padding: 8px 12px;
        font-size: 14px;
    }
}

/* Fix for Bootstrap form-inline on mobile */
@media (max-width: 767px) {
    .form-inline .form-group,
    .form-inline .form-control {
        display: inline-block;
        width: auto;
    }
    
    .form-inline .form-control {
        min-width: 200px;
    }
    
    .form-inline .form-group {
        margin-bottom: 10px;
        width: 100%;
    }
}

/* DataTable filter inputs responsive */
@media (max-width: 767px) {
    .dataTables_filter input,
    .dataTables_length select {
        padding: 8px 12px;
        font-size: 14px;
        min-width: 150px;
    }
}