:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --dark-color: #212529;
    --light-bg: #f8f9fa;
    --border-radius: 12px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
    --border-color: #e5e7eb;
    --primary-light: #60a5fa;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.auth-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.auth-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); }
}

.auth-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    padding: 40px;
    animation: fadeInUp 0.5s ease;
    position: relative;
    z-index: 1;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo-container {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), #0a58ca);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: 0 10px 25px rgba(13, 110, 253, 0.3);
}

.logo-container i {
    color: white !important;
    font-size: 40px;
}

.auth-header {
    margin-bottom: 30px;
}

.auth-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 8px;
}

.auth-subtitle {
    color: var(--secondary-color);
    font-size: 14px;
}

.form-control {
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 20px;
    font-size: 15px;
    transition: var(--transition);
    background: #f9fafb;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.1);
    background: white;
}

.form-floating>label {
    color: var(--secondary-color);
    padding: 1rem 20px;
}

.form-floating label i {
    margin-right: 8px;
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--secondary-color);
    z-index: 10;
    font-size: 18px;
    transition: color 0.2s;
}

.password-toggle:hover {
    color: var(--primary-color);
}

.password-strength {
    margin-top: 8px;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn {
    border-radius: 12px;
    padding: 14px 24px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 12px;
    padding: 14px 24px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn:focus {
    box-shadow: none;
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 20px 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.divider-text {
    padding: 0 15px;
    color: #9ca3af;
    font-size: 14px;
    font-weight: 500;
}

.footer-links a {
    transition: all 0.2s;
}

.footer-links a:hover {
    color: var(--primary-color) !important;
    transform: translateY(-1px);
}

.dashboard-page {
    background: var(--light-bg);
}

.navbar {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.navbar-brand {
    font-weight: 700;
    font-size: 24px;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-brand i {
    font-size: 28px;
}

.nav-link {
    color: #6b7280;
    font-weight: 500;
    padding: 8px 16px !important;
    border-radius: 8px;
    transition: all 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background: rgba(13, 110, 253, 0.1);
}

.dashboard-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark-color);
}

.stats-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--box-shadow);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
}

.stats-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.stats-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
}

.stats-content {
    flex: 1;
}

.stats-label {
    font-size: 13px;
    color: var(--secondary-color);
    margin-bottom: 4px;
    text-transform: uppercase;
    font-weight: 600;
}

.stats-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark-color);
    margin: 0;
}

.section-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 20px;
}

.package-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
}

.package-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.package-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    z-index: 1;
}

.package-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.package-body {
    padding: 24px;
}

.package-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark-color);
}

.package-desc {
    color: var(--secondary-color);
    font-size: 14px;
    margin-bottom: 20px;
}

.package-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 20px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.info-item i {
    font-size: 24px;
    margin-top: 2px;
}

.info-item small {
    display: block;
    color: var(--secondary-color);
    font-size: 12px;
    text-transform: uppercase;
    font-weight: 600;
}

.info-item strong {
    display: block;
    font-size: 16px;
    color: var(--dark-color);
}

.info-box {
    background: var(--light-bg);
    padding: 16px;
    border-radius: 8px;
    text-align: center;
}

.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.card-header {
    border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
    border: none;
    padding: 16px 24px;
}

.card-body {
    padding: 24px;
}

.table {
    margin-bottom: 0;
}

.table th {
    font-weight: 700;
    text-transform: uppercase;
    font-size: 12px;
    color: var(--secondary-color);
    border-bottom: 2px solid #dee2e6;
}

.badge {
    padding: 6px 12px;
    font-weight: 600;
    border-radius: 6px;
}

.footer {
    background: var(--dark-color);
    color: white;
    padding: 20px 0;
    text-align: center;
    margin-top: 60px;
}

.alert {
    border-radius: 12px;
    border: none;
    padding: 15px 20px;
    font-size: 14px;
}

.alert-danger {
    background: #fee2e2;
    color: #991b1b;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
}

.content-section {
    line-height: 1.8;
}

.content-section h2 {
    margin-top: 30px;
}

.feature-box {
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.feature-box:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.text-primary {
    color: var(--primary-color) !important;
}

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

.shadow-sm {
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05) !important;
}

.shadow {
    box-shadow: var(--box-shadow) !important;
}

.lead {
    font-size: 1.15rem;
    font-weight: 400;
}

.display-1 {
    font-size: 5rem;
    font-weight: 300;
    line-height: 1.2;
}

.display-4 {
    font-size: 2.5rem;
    font-weight: 300;
    line-height: 1.2;
}

.invalid-feedback {
    display: none;
    font-size: 0.875rem;
    color: var(--danger-color);
}

.was-validated .form-control:invalid ~ .invalid-feedback {
    display: block;
}

.was-validated .form-control:invalid {
    border-color: var(--danger-color);
}

.was-validated .form-control:valid {
    border-color: var(--success-color);
}

a {
    text-decoration: none;
    transition: all 0.2s;
}

a:hover {
    opacity: 0.8;
}

ul {
    padding-left: 20px;
}

ul li {
    margin-bottom: 8px;
}

@media (max-width: 768px) {
    .auth-card {
        padding: 30px 20px;
    }

    .stats-card {
        flex-direction: column;
        text-align: center;
    }

    .dashboard-title {
        font-size: 24px;
    }

    .auth-title {
        font-size: 26px;
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .display-1 {
        font-size: 3.5rem;
    }
    
    .footer-links a {
        display: block;
        margin: 5px 0;
    }
}