:root {
    --dark-bg: #0a0a0a;
    --dark-card: #1a1a1a;
    --dark-border: #2a2a2a;
    --accent-primary: #9d4edd;
    --accent-secondary: #c77dff;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

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

/* Navigation */
.navbar {
    background: var(--dark-card);
    border-bottom: 1px solid var(--dark-border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-brand .accent {
    color: var(--accent-primary);
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: var(--text-primary);
}

.btn-nav {
    background: var(--accent-primary);
    color: var(--text-primary) !important;
    padding: 0.5rem 1.5rem;
    border-radius: 6px;
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    text-align: center;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-card) 100%);
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--accent-primary);
}

.btn-secondary:hover {
    background: var(--accent-primary);
}

/* Sections */
section {
    padding: 4rem 0;
}

section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

/* Platforms Grid */
.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.platform-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
}

.platform-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-5px);
}

.platform-card h3 {
    color: var(--accent-secondary);
    margin-bottom: 0.5rem;
}

.platform-card p {
    color: var(--text-secondary);
}

/* Packages Grid */
.packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.package-card {
    background: var(--dark-card);
    border: 2px solid var(--dark-border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
    position: relative;
}

.package-card.popular {
    border-color: var(--accent-primary);
}

.package-card.popular::before {
    content: 'Most Popular';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-primary);
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.package-card:hover {
    transform: scale(1.05);
    border-color: var(--accent-secondary);
}

.package-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin: 1rem 0;
}

.package-price {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 1rem 0;
}

.package-bonus {
    color: var(--success);
    font-weight: 600;
    margin: 0.5rem 0;
    font-size: 1.1rem;
}

.package-rate {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0.5rem 0;
    font-style: italic;
}

/* Package Badges */
.package-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.4rem 1.2rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    z-index: 10;
}

.package-badge.popular {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.package-badge.value {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

.package-badge.premium {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
}

.package-badge.enterprise {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
}

/* Enhanced package card styles for tiers */
.package-card.value {
    border-color: #10b981;
}

.package-card.premium {
    border-color: #f59e0b;
}

.package-card.enterprise {
    border-color: #ef4444;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.05) 0%, transparent 100%);
}

.package-features {
    list-style: none;
    margin: 1.5rem 0;
    color: var(--text-secondary);
    text-align: left;
}

.package-features li {
    margin: 0.5rem 0;
    font-size: 0.95rem;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--accent-secondary);
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-secondary);
}

/* Dashboard */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.stat-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 12px;
    padding: 2rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin: 0.5rem 0;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* Loading */
.loading {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem;
}

/* Alert Messages */
.alert {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error);
    color: var(--error);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--warning);
    color: var(--warning);
}

/* Footer */
.footer {
    background: var(--dark-card);
    border-top: 1px solid var(--dark-border);
    padding: 2rem 0;
    margin-top: 4rem;
    text-align: center;
}

.footer-links {
    margin-top: 1rem;
    display: flex;
    gap: 2rem;
    justify-content: center;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 2rem;
    }

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

    .nav-menu {
        gap: 1rem;
    }
}

/* Checkout Page Styles */
.checkout-section {
    padding: 4rem 0;
    min-height: 80vh;
}

.checkout-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    margin-top: 2rem;
}

.order-summary,
.payment-form {
    background: var(--dark-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--dark-border);
}

.order-summary h2,
.payment-form h2 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--dark-border);
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item-details h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.cart-item-details p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.cart-item-price {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--accent-primary);
}

.order-total {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 2px solid var(--dark-border);
}

.total-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    font-size: 1rem;
}

.total-row.final {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent-primary);
    padding-top: 1rem;
    border-top: 1px solid var(--dark-border);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    background: var(--dark-bg);
    border: 1px solid var(--dark-border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

#card-element {
    padding: 0.75rem;
    background: var(--dark-bg);
    border: 1px solid var(--dark-border);
    border-radius: 6px;
}

#card-errors {
    color: #fa755a;
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

.btn-large {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    margin-top: 1rem;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.hidden {
    display: none;
}

.empty-cart {
    text-align: center;
    padding: 3rem 1rem;
}

.empty-cart p {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.alert-success {
    background: rgba(75, 181, 67, 0.1);
    border: 1px solid rgba(75, 181, 67, 0.3);
    color: #4bb543;
}

/* Responsive checkout */
@media (max-width: 968px) {
    .checkout-grid {
        grid-template-columns: 1fr;
    }
    
    .order-summary {
        order: 2;
    }
    
    .payment-form {
        order: 1;
    }
}