/* Reset and Base Styles */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --primary-light: #818CF8;
    --text: #1F2937;
    --text-light: #6B7280;
    --background: #FFFFFF;
    --background-alt: #F9FAFB;
    --border: #E5E7EB;
    --success: #10B981;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    background-color: var(--background);
    line-height: 1.6;
    overflow-x: hidden;
}

body.menu-open {
    overflow: hidden;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

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

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

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

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

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

.btn-lg {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

.header.scrolled {
    border-bottom-color: var(--border);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text);
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 32px;
}

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

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

.header-btn {
    padding: 10px 20px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    z-index: 999;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.mobile-nav a {
    display: block;
    padding: 12px 0;
    text-decoration: none;
    color: var(--text);
    font-size: 1.1rem;
    font-weight: 500;
    border-bottom: 1px solid var(--border);
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, var(--background-alt) 0%, var(--background) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 24px;
}

.hero-content h1 {
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-visual {
    position: relative;
    width: 300px;
    height: 350px;
}

.shield-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.shield-icon svg {
    width: 180px;
    height: 210px;
    filter: drop-shadow(0 20px 40px rgba(99, 102, 241, 0.3));
}

.floating-badge {
    position: absolute;
    padding: 8px 16px;
    background: white;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    animation: float 3s ease-in-out infinite;
}

.badge-1 {
    top: 20px;
    right: 0;
    animation-delay: 0s;
}

.badge-2 {
    bottom: 80px;
    left: 0;
    animation-delay: 1s;
}

.badge-3 {
    bottom: 20px;
    right: 20px;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Sections Common */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-light);
    font-size: 1.125rem;
}

/* Advantages Section */
.advantages {
    background: var(--background);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.advantage-card {
    padding: 32px;
    background: var(--background-alt);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.advantage-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 12px;
    margin-bottom: 20px;
}

.advantage-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.advantage-card h3 {
    margin-bottom: 12px;
}

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

/* How It Works Section */
.how-it-works {
    background: var(--background-alt);
}

.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.step {
    text-align: center;
    position: relative;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 30px;
    right: -15px;
    width: 30px;
    height: 2px;
    background: var(--border);
}

.step-number {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 50%;
    margin: 0 auto 20px;
}

.step-content h3 {
    margin-bottom: 12px;
}

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

.tip-box {
    display: flex;
    gap: 16px;
    padding: 24px;
    background: white;
    border-radius: 12px;
    border-left: 4px solid var(--primary);
}

.tip-icon svg {
    width: 24px;
    height: 24px;
    color: var(--primary);
    flex-shrink: 0;
}

.tip-content {
    color: var(--text-light);
}

.tip-content strong {
    color: var(--text);
}

/* Special Offer Section */
.special-offer {
    background: var(--background);
    padding: 60px 0;
}

.offer-card {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 40px;
    align-items: center;
    padding: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 24px;
    color: white;
}

.offer-badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.offer-content h2 {
    color: white;
    margin-bottom: 16px;
}

.offer-content p {
    opacity: 0.9;
    margin-bottom: 24px;
    font-size: 1.1rem;
}

.offer-features {
    list-style: none;
    margin-bottom: 32px;
}

.offer-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.offer-features svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.price-tag {
    text-align: center;
    padding: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
}

.price-value {
    display: block;
    font-size: 4rem;
    font-weight: 800;
}

.price-period {
    font-size: 1.25rem;
    opacity: 0.9;
}

/* Pricing Section */
.pricing {
    background: var(--background-alt);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.pricing-card {
    position: relative;
    padding: 40px 32px;
    background: white;
    border-radius: 20px;
    border: 2px solid var(--border);
    transition: all 0.3s ease;
}

.pricing-card:hover {
    border-color: var(--primary-light);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.pricing-card.popular {
    border-color: var(--primary);
    transform: scale(1.05);
}

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-5px);
}

.popular-badge, .best-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 16px;
    background: var(--primary);
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 20px;
}

.best-badge {
    background: var(--success);
}

.pricing-header {
    text-align: center;
    margin-bottom: 24px;
}

.pricing-header h3 {
    margin-bottom: 8px;
}

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

.pricing-price {
    text-align: center;
    margin-bottom: 8px;
}

.pricing-price .price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
}

.pricing-price .period {
    font-size: 1rem;
    color: var(--text-light);
}

.pricing-total {
    text-align: center;
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.pricing-discount {
    text-align: center;
    color: var(--success);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features svg {
    width: 20px;
    height: 20px;
    color: var(--success);
    flex-shrink: 0;
}

.pricing-note {
    text-align: center;
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Platforms Section */
.platforms {
    background: var(--background);
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.platform-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 40px 24px;
    background: var(--background-alt);
    border-radius: 16px;
    text-decoration: none;
    color: var(--text);
    transition: all 0.3s ease;
}

.platform-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

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

.platform-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 16px;
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.platform-icon svg {
    width: 32px;
    height: 32px;
    color: var(--text);
}

.platform-card h3 {
    margin-bottom: 8px;
}

.platform-card p {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 20px;
}

.platform-btn {
    padding: 10px 20px;
    background: white;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

/* Reviews Section */
.reviews {
    background: var(--background-alt);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.review-card {
    padding: 32px;
    background: white;
    border-radius: 16px;
}

.review-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.review-avatar {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: white;
    font-weight: 700;
    border-radius: 50%;
}

.review-info h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.review-stars {
    display: flex;
    gap: 2px;
}

.review-stars svg {
    width: 16px;
    height: 16px;
    color: #FBBF24;
}

.review-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Guarantee Section */
.guarantee {
    background: var(--background);
    padding: 60px 0;
}

.guarantee-card {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    padding: 48px;
    background: var(--background-alt);
    border-radius: 20px;
    border: 2px solid var(--success);
}

.guarantee-icon svg {
    width: 64px;
    height: 64px;
    color: var(--success);
    flex-shrink: 0;
}

.guarantee-content h2 {
    margin-bottom: 16px;
}

.guarantee-content > p {
    color: var(--text-light);
    margin-bottom: 24px;
    line-height: 1.7;
}

.guarantee-list {
    list-style: none;
}

.guarantee-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-weight: 500;
}

.guarantee-list svg {
    width: 20px;
    height: 20px;
    color: var(--success);
    flex-shrink: 0;
}

/* FAQ Section */
.faq {
    background: var(--background-alt);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: none;
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    transition: color 0.2s ease;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question svg {
    width: 20px;
    height: 20px;
    color: var(--text-light);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 24px 20px;
    color: var(--text-light);
    line-height: 1.7;
}

/* Final CTA Section */
.final-cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    text-align: center;
    padding: 80px 0;
}

.final-cta h2 {
    color: white;
    margin-bottom: 16px;
}

.final-cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    margin-bottom: 32px;
}

/* Footer */
.footer {
    background: var(--text);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.footer-logo .logo-icon {
    width: 40px;
    height: 40px;
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    max-width: 400px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-image {
        display: none;
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps {
        grid-template-columns: repeat(2, 1fr);
    }

    .step:not(:last-child)::after {
        display: none;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }

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

    .pricing-card.popular:hover {
        transform: translateY(-5px);
    }

    .platforms-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .offer-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .offer-features {
        display: inline-block;
        text-align: left;
    }

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

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

    .guarantee-list {
        display: inline-block;
        text-align: left;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .header-btn {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    section {
        padding: 60px 0;
    }

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

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

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

    .offer-card {
        padding: 40px 24px;
    }

    .price-tag {
        padding: 24px;
    }

    .price-value {
        font-size: 3rem;
    }

    .tip-box {
        flex-direction: column;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .pricing-card {
        padding: 32px 24px;
    }
}