/* ==========================================
   3Dtag Pricing Page Styles
   ========================================== */

:root {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #f9fafb;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --disabled-color: #d1d5db;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* Header */
.header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.logo h1 {
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo a {
    text-decoration: none;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Buttons */
.btn {
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.95rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-color);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-large {
    padding: 0.8rem 2rem;
    font-size: 1rem;
}

.full-width {
    width: 100%;
    justify-content: center;
}

/* Main */
.main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Billing Toggle */
.toggle-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.toggle-label {
    font-weight: 500;
    color: var(--text-light);
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--disabled-color);
    transition: 0.3s;
    border-radius: 28px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

input:checked + .toggle-slider {
    background-color: var(--primary-color);
}

input:checked + .toggle-slider:before {
    transform: translateX(24px);
}

.discount-badge {
    background-color: var(--accent-color);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 0.3rem;
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.pricing-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    position: relative;
    transition: transform 0.2s, box-shadow 0.2s;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.popular {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    transform: scale(1.02);
}

.pricing-card.popular:hover {
    transform: scale(1.02) translateY(-4px);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.card-header h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.tagline {
    color: var(--text-light);
    font-size: 0.95rem;
}

.price {
    margin: 1.5rem 0;
    display: flex;
    align-items: baseline;
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-color);
}

.period {
    font-size: 1rem;
    color: var(--text-light);
    margin-left: 0.3rem;
}

.features {
    list-style: none;
    margin: 1.5rem 0;
}

.features li {
    padding: 0.6rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-color);
}

.features li i {
    color: var(--success-color);
    font-size: 0.9rem;
}

.features li.disabled {
    color: var(--disabled-color);
}

.features li.disabled i {
    color: var(--disabled-color);
}

/* Comparison Table */
.comparison-section {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 4rem;
    box-shadow: var(--shadow-sm);
}

.comparison-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.comparison-table th,
.comparison-table td {
    padding: 1rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background-color: var(--bg-color);
    font-weight: 600;
    color: var(--text-color);
}

.comparison-table th:first-child {
    text-align: left;
}

.comparison-table td:first-child {
    text-align: left;
    font-weight: 500;
}

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

/* FAQ Section */
.faq-section {
    margin-bottom: 4rem;
}

.faq-section h2 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.faq-item {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.faq-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    color: var(--text-color);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.faq-item h3 i {
    color: var(--primary-color);
    margin-top: 0.1rem;
}

.faq-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 3rem;
    border-radius: var(--radius-lg);
    margin-bottom: 3rem;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

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

.cta-section .btn-primary:hover {
    background-color: var(--bg-color);
}

.cta-section .btn-secondary {
    background-color: transparent;
    color: white;
    border-color: rgba(255,255,255,0.5);
}

.cta-section .btn-secondary:hover {
    background-color: rgba(255,255,255,0.1);
    border-color: white;
}

/* Footer */
.footer {
    background: var(--text-color);
    color: white;
    padding: 3rem 2rem 1rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1rem;
    text-align: center;
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease-out;
}

.modal.large .modal-content {
    max-width: 800px;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    position: relative;
    animation: slideUp 0.3s ease-out;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content h2 {
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.modal-close:hover {
    background-color: var(--bg-color);
}

/* Payment Modal */
.payment-summary {
    background: var(--bg-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.summary-row:last-child {
    border-bottom: none;
    font-weight: 600;
    font-size: 1.1rem;
    margin-top: 0.5rem;
    padding-top: 1rem;
}

.payment-form h3 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.payment-methods {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.payment-method {
    flex: 1;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--card-bg);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s;
}

.payment-method i {
    font-size: 1.8rem;
    color: var(--text-color);
}

.payment-method.selected {
    border-color: var(--primary-color);
    background-color: rgba(59, 130, 246, 0.05);
}

.payment-method.selected i {
    color: var(--primary-color);
}

.qr-section {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-color);
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
}

.qr-placeholder {
    width: 200px;
    height: 200px;
    margin: 1rem auto;
    background: white;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-light);
}

.qr-placeholder i {
    font-size: 3rem;
}

.note {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .nav {
        gap: 1rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .pricing-card.popular {
        transform: none;
    }

    .pricing-card.popular:hover {
        transform: translateY(-4px);
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .main {
        padding: 1rem;
    }

    .hero h1 {
        font-size: 1.6rem;
    }

    .comparison-section {
        padding: 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}