/* General Styles */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #95E1D3;
    --warning-color: #FFE66D;
    --danger-color: #FF6B6B;
    --info-color: #4ECDC4;
    --light-bg: #f8f9fa;
    --border-radius: 10px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-bg);
    color: #333;
}

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

a:hover {
    color: var(--secondary-color);
}

/* Headings */
h1 {
    font-size: 2.04rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 1.755rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

h3 {
    font-size: 1.512rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

h4 {
    font-size: 1.326rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

h5 {
    font-size: 1.275rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

h6 {
    font-size: 1.02rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Navbar */
.navbar {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.428rem;
}

.navbar-brand i {
    margin-right: 8px;
}

.navbar .nav-link {
    margin: 0 5px;
    position: relative;
    transition: color 0.3s ease;
}

.navbar .nav-link:hover {
    color: #fff !important;
}

.navbar .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    background-color: #fff;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar .nav-link:hover::after {
    width: 100%;
}

/* Cards */
.card {
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    padding: 1.25rem;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.card-header h5 {
    margin: 0;
    color: white;
}

.card-body {
    padding: 1.5rem;
}

/* Stat Cards */
.card-stat {
    background: white;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius);
}

.card-stat .card-body {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 2rem;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
}

.stat-icon.stat-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.stat-icon.stat-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #5cd9c1 100%);
}

.stat-icon.stat-warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #ffd651 100%);
}

.stat-icon.stat-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #3ab8ad 100%);
}

.stat-icon.stat-secondary {
    background: linear-gradient(135deg, #8b7ba8 0%, #6f5a87 100%);
}

.stat-icon.stat-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #ff5252 100%);
}

.stat-content {
    flex: 1;
}

.stat-title {
    font-size: 0.867rem;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.stat-value {
    font-size: 2.04rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 0;
}

.stat-content small {
    color: var(--success-color);
    font-weight: 600;
}

/* Tables */
.table {
    border-collapse: collapse;
}

.table thead th {
    background-color: var(--light-bg);
    border: none;
    color: #333;
    font-weight: 600;
    padding: 1rem;
    text-transform: uppercase;
    font-size: 0.867rem;
    letter-spacing: 0.5px;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid #f0f0f0;
}

.table tbody tr:hover {
    background-color: var(--light-bg);
}

/* Buttons */
.btn {
    border-radius: 5px;
    font-weight: 500;
    padding: 0.6rem 1.2rem;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.btn-primary:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background-color: #999;
    color: white;
}

.btn-secondary:hover {
    background-color: #777;
    color: white;
}

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

.btn-info:hover {
    background-color: #3ab8ad;
    color: white;
}

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

.btn-success:hover {
    background-color: #5cd9c1;
    color: white;
}

.btn-warning {
    background-color: var(--warning-color);
    color: #333;
}

.btn-warning:hover {
    background-color: #ffd651;
    color: #333;
}

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

.btn-danger:hover {
    background-color: #ff5252;
    color: white;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.867rem;
}

/* Badges */
.badge {
    padding: 0.5rem 0.8rem;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.867rem;
}

.bg-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%) !important;
}

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

.bg-warning {
    background-color: var(--warning-color) !important;
    color: #333 !important;
}

.bg-danger {
    background-color: var(--danger-color) !important;
}

.bg-info {
    background-color: var(--info-color) !important;
}

.bg-secondary {
    background-color: #999 !important;
}

/* Forms */
.form-control,
.form-select {
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.form-label {
    color: #333;
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 1.02rem;
}

/* Alerts */
.alert {
    border: none;
    border-radius: 5px;
    padding: 1rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
}

/* Container & Spacing */
.container-fluid {
    padding: 1rem;
}

/* Modal */
.modal-content {
    border: none;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius);
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
}

/* Responsive */
@media (max-width: 768px) {
    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .card-stat .card-body {
        flex-direction: column;
        gap: 15px;
    }

    .table {
        font-size: 0.9rem;
    }

    .table thead th,
    .table tbody td {
        padding: 0.75rem 0.5rem;
    }

    .btn-sm {
        padding: 0.3rem 0.6rem;
        font-size: 0.75rem;
    }
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* Loading Animation */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.spinner {
    animation: spin 1s linear infinite;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-muted {
    color: #999 !important;
}

.mb-0 {
    margin-bottom: 0 !important;
}

.mb-1 {
    margin-bottom: 0.5rem !important;
}

.mb-2 {
    margin-bottom: 1rem !important;
}

.mb-3 {
    margin-bottom: 1.5rem !important;
}

.mb-4 {
    margin-bottom: 2rem !important;
}

.mt-4 {
    margin-top: 2rem !important;
}

.w-100 {
    width: 100% !important;
}

.d-flex {
    display: flex !important;
}

.d-grid {
    display: grid !important;
}

.gap-2 {
    gap: 0.5rem !important;
}

.gap-3 {
    gap: 1rem !important;
}

.align-items-center {
    align-items: center !important;
}

.justify-content-between {
    justify-content: space-between !important;
}

.flex-wrap {
    flex-wrap: wrap !important;
}

/* Badge Priority */
.badge-priority {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 500;
}

/* Login Page Styles */
body.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    padding: 40px;
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    color: #667eea;
    font-size: 28px;
    margin-bottom: 10px;
}

.login-header p {
    color: #999;
    margin: 0;
}

.login-page .form-group {
    margin-bottom: 20px;
}

.login-page .form-group label {
    color: #333;
    font-weight: 500;
    margin-bottom: 8px;
    display: block;
}

.login-page .form-group input {
    border-radius: 5px;
    border: 1px solid #ddd;
    padding: 10px 15px;
    width: 100%;
}

.login-page .form-group input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    outline: none;
}

.btn-login {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 5px;
    color: white;
    font-weight: 600;
    padding: 12px;
    width: 100%;
    margin-top: 10px;
    cursor: pointer;
}

.btn-login:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.3);
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    color: #999;
}

.login-footer a {
    color: #667eea;
    text-decoration: none;
}

.login-footer a:hover {
    text-decoration: underline;
}
/* Register Page Styles */
body.register-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.register-container {
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    padding: 40px;
    width: 100%;
    max-width: 500px;
}

.register-header {
    text-align: center;
    margin-bottom: 30px;
}

.register-header h1 {
    color: #667eea;
    font-size: 28px;
    margin-bottom: 10px;
}

.register-page .form-group {
    margin-bottom: 20px;
}

.register-page .form-group label {
    color: #333;
    font-weight: 500;
    margin-bottom: 8px;
    display: block;
}

.register-page .form-group input {
    border-radius: 5px;
    border: 1px solid #ddd;
    padding: 10px 15px;
    width: 100%;
}

.register-page .form-group input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    outline: none;
}

.btn-register {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 5px;
    color: white;
    font-weight: 600;
    padding: 12px;
    width: 100%;
    margin-top: 10px;
    cursor: pointer;
}

.btn-register:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.3);
}

.register-footer {
    text-align: center;
    margin-top: 20px;
    color: #999;
}

.register-footer a {
    color: #667eea;
    text-decoration: none;
}

.register-footer a:hover {
    text-decoration: underline;
}

/* Error Page Styles */
body.error-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ========================================
   Page Layout Components (UI Standardization)
   ======================================== */

/* Page Header */
.page-header {
    padding: 1.5rem 0;
    border-bottom: 2px solid #f0f0f0;
    margin-bottom: 2rem;
}

.page-title {
    font-size: 2rem;
    font-weight: 600;
    color: #333;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.page-title i {
    color: var(--primary-color);
}

/* Breadcrumb */
.breadcrumb {
    background-color: transparent;
    padding: 0;
    margin: 0;
    border-radius: 0;
}

.breadcrumb-item {
    font-weight: 500;
}

.breadcrumb-item a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb-item a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.breadcrumb-item.active {
    color: #999;
}

/* Filter Card */
.filter-card {
    background: white;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.filter-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.filter-card .card-body {
    padding: 1.5rem;
}

.filter-form .row {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
}

.filter-form .input-group .input-group-text {
    background: white;
    border: 1px solid #ddd;
    color: var(--primary-color);
}

.filter-form .input-group .form-control {
    border: 1px solid #ddd;
}

.filter-form .input-group .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: none;
}

/* Stat Card */
.stat-card {
    background: white;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.stat-card .card-body {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 1.5rem;
}

.stat-card .stat-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    flex-shrink: 0;
}

.stat-card .stat-content {
    flex: 1;
}

.stat-card .stat-label {
    font-size: 0.85rem;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
    font-weight: 600;
}

.stat-card .stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: #333;
    margin: 0;
}

.stat-card .stat-detail {
    font-size: 0.85rem;
    color: var(--success-color);
    margin-top: 5px;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.action-buttons .btn-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.action-buttons .btn-group .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

/* Alert Container */
#alertContainer {
    margin-bottom: 1.5rem;
}

#alertContainer .alert {
    margin-bottom: 0;
    animation: slideIn 0.3s ease;
}

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

/* Footer */
footer {
    margin-top: auto;
    border-top: 1px solid #f0f0f0;
}

footer h6 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: #fff;
}

footer .list-unstyled li {
    margin-bottom: 0.5rem;
}

footer .list-unstyled a {
    color: inherit;
    transition: color 0.3s ease;
}

footer .list-unstyled a:hover {
    color: var(--primary-color);
}

footer hr {
    margin: 1rem 0;
    opacity: 0.5;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #999;
}

.empty-state i {
    font-size: 3rem;
    color: #ddd;
    margin-bottom: 1rem;
    display: block;
}

.empty-state h5 {
    color: #333;
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: #999;
    margin-bottom: 1.5rem;
}

/* Loading State */
.loading {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.spinner-border {
    width: 1rem;
    height: 1rem;
    border-width: 0.2em;
}

/* Responsive Page Layout */
@media (max-width: 768px) {
    .page-header {
        padding: 1rem 0;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .filter-form .row {
        flex-direction: column;
        gap: 0;
    }

    .filter-form .col-md-6,
    .filter-form .col-md-3,
    .filter-form .col-md-auto {
        width: 100% !important;
        margin-bottom: 0.5rem;
    }

    .stat-card .card-body {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }

    .action-buttons {
        flex-direction: column;
    }

    .action-buttons .btn-group {
        width: 100%;
    }

    .action-buttons .btn-group .btn {
        flex: 1;
        justify-content: center;
    }

    .breadcrumb {
        font-size: 0.85rem;
    }
}


.error-container {
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    padding: 60px 40px;
    text-align: center;
    max-width: 500px;
}

.error-icon {
    font-size: 80px;
    color: #FF6B6B;
    margin-bottom: 20px;
}