:root {
    --primary-color: #4f46e5;
    --primary-dark: #4338ca;
    --secondary-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --dark-color: #1f2937;
    --light-color: #f9fafb;
    --gray-color: #6b7280;
    --border-color: #e5e7eb;
    --card-bg: #ffffff;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --radius: 0.5rem;
    --transition: all 0.3s ease;
}

.dark-theme {
    --dark-color: #f9fafb;
    --light-color: #111827;
    --card-bg: #1f2937;
    --border-color: #374151;
    --gray-color: #9ca3af;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.3);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    transition: var(--transition);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

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

a:hover {
    color: var(--primary-dark);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

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

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

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

.btn-secondary:hover {
    background-color: #4b5563;
}

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

.btn-success:hover {
    background-color: #0da271;
}

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

.btn-danger:hover {
    background-color: #dc2626;
}

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

.btn-warning:hover {
    background-color: #d97706;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Cards */
.card, .feature-card, .stat-card, .link-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.card:hover, .feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* Dashboard */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-link {
    display: inline-block;
    margin-top: 0.5rem;
    font-size: 0.875rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    background: var(--card-bg);
    color: var(--dark-color);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.input-group {
    display: flex;
    gap: 0.5rem;
}

.input-group input {
    flex: 1;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    border-left: 4px solid;
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: var(--danger-color);
    color: #991b1b;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border-color: var(--secondary-color);
    color: #065f46;
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    border-color: var(--warning-color);
    color: #92400e;
}

/* Ad Container */
.ad-container {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: var(--shadow-lg);
}

.ad-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.ad-content {
    margin: 2rem 0;
    text-align: center;
}

.ad-banner {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--radius);
}

.ad-text {
    padding: 2rem;
    background: rgba(79, 70, 229, 0.05);
    border-radius: var(--radius);
}

/* Progress bar */
.progress-bar {
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    margin: 1rem 0;
    overflow: hidden;
}

.progress {
    height: 100%;
    background: var(--primary-color);
    width: 0%;
    transition: width 1s linear;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-body {
    padding: 1.5rem;
}

.close-modal {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--gray-color);
}

/* Pricing */
.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.pricing-card {
    position: relative;
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
}

.pricing-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 1rem 0;
}

.price span {
    font-size: 1rem;
    color: var(--gray-color);
}

/* Referral */
.referral-box {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(16, 185, 129, 0.1));
    border-radius: var(--radius);
    padding: 2rem;
    margin: 1rem 0;
}

.referral-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.referral-stat {
    text-align: center;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: var(--radius);
}

.referral-stat strong {
    display: block;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.share-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.share-btn {
    flex: 1;
    min-width: 120px;
    padding: 0.75rem;
    border-radius: var(--radius);
    text-align: center;
    color: white;
}

.share-btn.facebook { background: #1877f2; }
.share-btn.twitter { background: #1da1f2; }
.share-btn.telegram { background: #0088cc; }

/* Status badges */
.status-badge, .membership-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.status-badge.active, .membership-badge.premium {
    background: rgba(16, 185, 129, 0.2);
    color: var(--secondary-color);
}

.status-badge.inactive, .membership-badge.free {
    background: rgba(156, 163, 175, 0.2);
    color: var(--gray-color);
}

/* Quick actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.quick-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    transition: var(--transition);
    text-align: center;
}

.quick-action:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.quick-action i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Boost info */
.boost-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.info-box {
    padding: 1rem;
    background: rgba(79, 70, 229, 0.05);
    border-radius: var(--radius);
}

/* Range slider */
input[type="range"] {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    outline: none;
}

.range-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    color: var(--gray-color);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .dashboard-stats,
    .pricing-cards {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .quick-actions {
        grid-template-columns: 1fr;
    }
    
    .share-buttons {
        flex-direction: column;
    }
}