:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --text-primary: #eaeaea;
    --text-secondary: #a0a0a0;
    --accent-color: #e94560;
    --success-color: #00b894;
    --warning-color: #fdcb6e;
    --danger-color: #d63031;
    --info-color: #74b9ff;
    --border-color: #2d3748;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    padding: 20px 0;
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    z-index: 1000;
    transition: var(--transition);
}

.sidebar-header {
    padding: 0 20px 20px;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-primary);
}

.logo i {
    font-size: 1.8rem;
    color: var(--accent-color);
}

.sidebar-nav {
    padding: 20px 0;
    overflow-y: auto;
    max-height: calc(100vh - 200px);
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    border-right: 3px solid transparent;
    font-size: 0.95rem;
}

.sidebar-nav .nav-link:hover {
    background-color: rgba(233, 69, 96, 0.1);
    color: var(--text-primary);
    border-right-color: var(--accent-color);
}

.sidebar-nav .nav-link.active {
    background-color: rgba(233, 69, 96, 0.15);
    color: var(--accent-color);
    border-right-color: var(--accent-color);
}

.sidebar-nav .nav-link i {
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
}

.btn-logout {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px;
    background-color: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    transition: var(--transition);
}

.btn-logout:hover {
    background-color: var(--accent-color);
    color: white;
}

.main-content {
    flex: 1;
    margin-right: 280px;
    transition: var(--transition);
}

.top-navbar {
    background-color: var(--bg-secondary);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.btn-toggle-sidebar {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-toggle-sidebar:hover {
    color: var(--accent-color);
}

.navbar-info {
    display: flex;
    align-items: center;
    gap: 20px;
}

.current-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.content {
    padding: 30px;
}

.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 25px;
}

.card-header {
    background-color: rgba(15, 52, 96, 0.5);
    border-bottom: 1px solid var(--border-color);
    padding: 18px 20px;
    font-weight: 600;
    color: var(--text-primary);
    border-radius: 12px 12px 0 0;
}

.card-body {
    padding: 25px;
}

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

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

.btn-primary:hover {
    background-color: #d63d56;
    color: white;
}

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

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

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

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

.table {
    background-color: transparent;
    color: var(--text-primary);
}

.table thead th {
    background-color: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-primary);
    font-weight: 600;
}

.table tbody td {
    border-color: var(--border-color);
    vertical-align: middle;
}

.table tbody tr:hover {
    background-color: rgba(233, 69, 96, 0.05);
}

.form-control {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 8px;
}

.form-control:focus {
    background-color: var(--bg-primary);
    border-color: var(--accent-color);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.2rem rgba(233, 69, 96, 0.25);
}

.form-control::placeholder {
    color: var(--text-secondary);
}

.form-label {
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 8px;
}

.form-select {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.form-select:focus {
    background-color: var(--bg-primary);
    border-color: var(--accent-color);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.2rem rgba(233, 69, 96, 0.25);
}

.alert {
    border-radius: 8px;
    border: none;
    margin-bottom: 20px;
}

.alert-success {
    background-color: rgba(0, 184, 148, 0.15);
    color: #00b894;
    border-right: 4px solid var(--success-color);
}

.alert-danger {
    background-color: rgba(214, 48, 49, 0.15);
    color: #d63031;
    border-right: 4px solid var(--danger-color);
}

.alert-warning {
    background-color: rgba(253, 203, 110, 0.15);
    color: #fdcb6e;
    border-right: 4px solid var(--warning-color);
}

.alert-info {
    background-color: rgba(116, 185, 255, 0.15);
    color: #74b9ff;
    border-right: 4px solid var(--info-color);
}

.modal-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
}

.modal-footer {
    border-top: 1px solid var(--border-color);
}

.modal-title {
    color: var(--text-primary);
}

.btn-close {
    filter: invert(1);
}

.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(26, 26, 46, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loader {
    text-align: center;
    color: var(--text-primary);
}

.loader p {
    margin-top: 15px;
    font-size: 1.1rem;
}

.stats-card {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    transition: var(--transition);
}

.stats-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.4);
}

.stats-card .icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.stats-card .icon.primary {
    background-color: rgba(233, 69, 96, 0.2);
    color: var(--accent-color);
}

.stats-card .icon.success {
    background-color: rgba(0, 184, 148, 0.2);
    color: var(--success-color);
}

.stats-card .icon.warning {
    background-color: rgba(253, 203, 110, 0.2);
    color: var(--warning-color);
}

.stats-card .icon.danger {
    background-color: rgba(214, 48, 49, 0.2);
    color: var(--danger-color);
}

.stats-card h3 {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 5px;
}

.stats-card p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.9rem;
}

.badge {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
}

.badge-primary {
    background-color: rgba(233, 69, 96, 0.2);
    color: var(--accent-color);
}

.badge-success {
    background-color: rgba(0, 184, 148, 0.2);
    color: var(--success-color);
}

.badge-danger {
    background-color: rgba(214, 48, 49, 0.2);
    color: var(--danger-color);
}

.badge-warning {
    background-color: rgba(253, 203, 110, 0.2);
    color: var(--warning-color);
}

.badge-info {
    background-color: rgba(116, 185, 255, 0.2);
    color: var(--info-color);
}

.dataTable {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.dataTable thead {
    background-color: var(--bg-tertiary);
}

.dataTable thead th {
    border: none;
    padding: 12px 15px;
    font-weight: 600;
}

.dataTable tbody td {
    border-bottom: 1px solid var(--border-color);
    padding: 12px 15px;
}

.dataTables_wrapper .dataTables_filter input {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 6px;
    padding: 6px 12px;
}

.dataTables_wrapper .dataTables_length select {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 6px;
    padding: 5px 10px;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    background-color: var(--bg-secondary) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    border-radius: 6px;
    margin: 0 2px;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background-color: var(--accent-color) !important;
    border-color: var(--accent-color) !important;
    color: white !important;
}

.footer {
    background-color: var(--bg-secondary);
    padding: 20px 30px;
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    margin-top: 30px;
}

/* Login Page Styles */
body.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #e94560 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

body.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: moveBackground 20s linear infinite;
}

@keyframes moveBackground {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 20px;
    z-index: 1;
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    animation: slideUp 0.6s ease-out;
}

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

.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 1px, transparent 1px);
    background-size: 30px 30px;
    animation: moveBackground 15s linear infinite;
}

.login-header .logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 2.2rem;
    font-weight: 800;
    color: white;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.login-header .logo i {
    font-size: 2.5rem;
    color: #ffd700;
    text-shadow: 0 2px 10px rgba(255, 215, 0, 0.5);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.login-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    margin: 0;
    font-weight: 500;
    position: relative;
    z-index: 1;
}

.login-body {
    padding: 40px 30px;
}

.login-body .form-control {
    background-color: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    padding: 15px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.login-body .form-control:focus {
    background-color: white;
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.login-body .form-label {
    color: #2c3e50;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.login-body .form-label i {
    color: #667eea;
    margin-left: 8px;
}

.login-body .input-group .form-control {
    border-radius: 12px 0 0 12px;
}

.login-body .input-group .btn {
    border-radius: 0 12px 12px 0;
    background-color: #f8f9fa;
    border: 2px solid #e9ecef;
    border-left: none;
}

.login-body .input-group .btn:hover {
    background-color: #e9ecef;
}

.login-body .btn-submit {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    padding: 15px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
}

.login-body .btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

.login-body .btn-submit:active {
    transform: translateY(0);
}

.login-body .btn-outline-primary {
    border: 2px solid #667eea;
    color: #667eea;
    padding: 12px;
    font-weight: 600;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.login-body .btn-outline-primary:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: transparent;
    color: white;
    transform: translateY(-2px);
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
}

.login-footer small {
    color: #6c757d;
    font-size: 0.85rem;
}

.existing-accounts {
    margin-top: 25px;
}

.existing-accounts hr {
    border-color: #e9ecef;
    margin: 20px 0;
}

.existing-accounts p {
    color: #2c3e50;
    font-weight: 500;
    margin-bottom: 15px;
}

.existing-accounts p i {
    color: #667eea;
    margin-left: 8px;
}

body.login-page .alert {
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

body.login-page .alert-success {
    background-color: rgba(40, 167, 69, 0.1);
    color: #28a745;
    border: 2px solid #28a745;
}

body.login-page .alert-danger {
    background-color: rgba(220, 53, 69, 0.1);
    color: #dc3545;
    border: 2px solid #dc3545;
}

body.login-page .alert-info {
    background-color: rgba(23, 162, 184, 0.1);
    color: #17a2b8;
    border: 2px solid #17a2b8;
}

body.login-page .form-check-label {
    color: #2c3e50;
    font-weight: 500;
}

@media (max-width: 576px) {
    .login-container {
        padding: 15px;
    }
    
    .login-card {
        border-radius: 15px;
    }
    
    .login-header {
        padding: 30px 20px;
    }
    
    .login-header .logo {
        font-size: 1.8rem;
    }
    
    .login-body {
        padding: 30px 20px;
    }
}

@media (max-width: 991px) {
    .sidebar {
        transform: translateX(100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-right: 0;
    }
}

@media (max-width: 767px) {
    .content {
        padding: 15px;
    }

    .card-body {
        padding: 15px;
    }

    .stats-card {
        padding: 20px;
    }
}