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

:root {
    --primary: #e74c3c;
    --primary-dark: #c0392b;
    --secondary: #3498db;
    --success: #27ae60;
    --warning: #f39c12;
    --dark: #2c3e50;
    --darker: #1a252f;
    --light: #ecf0f1;
    --lighter: #f8f9fa;
    --text: #34495e;
    --text-light: #7f8c8d;
    --border: #dfe6e9;

    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-xl: 0 12px 48px rgba(0,0,0,0.15);

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
}

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

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

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

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

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

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

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: 16px 0;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    text-decoration: none;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #fff5f5 0%, #ffe6e6 100%);
}

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

.speed-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: white;
    padding: 12px 24px;
    border-radius: 50px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
}

.speed-before {
    color: var(--primary);
    font-weight: 700;
    font-size: 18px;
}

.speed-arrow {
    font-size: 24px;
    color: var(--text-light);
}

.speed-after {
    color: var(--success);
    font-weight: 700;
    font-size: 18px;
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 8px;
}

/* Speed Comparison */
.speed-comparison {
    display: flex;
    align-items: center;
    gap: 24px;
    background: white;
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.speed-box {
    flex: 1;
    text-align: center;
    padding: 24px;
    border-radius: var(--radius-md);
}

.speed-box.before {
    background: linear-gradient(135deg, #ffebee 0%, #ffcdd2 100%);
}

.speed-box.after {
    background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
}

.speed-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.speed-box h3 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--text-light);
}

.speed-value {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.speed-box.before .speed-value {
    color: var(--primary);
}

.speed-box.after .speed-value {
    color: var(--success);
}

.speed-arrow-big {
    font-size: 48px;
    color: var(--text-light);
}

/* Problem Section */
.problem {
    padding: 100px 0;
    background: white;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

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

.section-header p {
    font-size: 1.125rem;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.problem-card {
    background: var(--lighter);
    padding: 32px;
    border-radius: var(--radius-md);
    text-align: center;
}

.problem-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.problem-card h3 {
    margin-bottom: 12px;
    color: var(--dark);
}

.problem-card p {
    font-size: 0.9375rem;
}

.testimonial {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 48px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.testimonial-text {
    font-size: 1.25rem;
    font-style: italic;
    margin-bottom: 16px;
    color: white;
}

.testimonial-author {
    color: rgba(255, 255, 255, 0.8);
}

/* Solution Section */
.solution {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e8f5e9 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

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

.feature-icon {
    margin-bottom: 20px;
}

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

.feature-card p {
    font-size: 0.9375rem;
}

/* How It Works Section */
.how-it-works {
    padding: 100px 0;
    background: white;
}

.steps {
    display: grid;
    gap: 48px;
    margin-bottom: 60px;
}

.step {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    font-size: 2rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
}

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

.tech-details {
    background: var(--lighter);
    padding: 40px;
    border-radius: var(--radius-md);
    margin-top: 60px;
}

.tech-details h3 {
    margin-bottom: 24px;
}

.tech-details ul {
    list-style: none;
    padding: 0;
}

.tech-details li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.tech-details li:last-child {
    border-bottom: none;
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
    background: linear-gradient(135deg, #fff5f5 0%, #ffe6e6 100%);
}

.pricing-card-single {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    text-align: center;
    position: relative;
}

.pricing-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 8px 24px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
}

.pricing-card-single h3 {
    font-size: 2rem;
    margin-bottom: 24px;
}

.price {
    margin-bottom: 24px;
}

.price-amount {
    font-size: 4rem;
    font-weight: 800;
    color: var(--primary);
    display: block;
    line-height: 1;
}

.price-period {
    display: block;
    color: var(--text-light);
    margin-top: 8px;
}

.pricing-description {
    font-size: 1.125rem;
    margin-bottom: 32px;
}

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

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 1rem;
}

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

.pricing-note {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-top: 16px;
}

.guarantee {
    max-width: 600px;
    margin: 60px auto 0;
    background: white;
    padding: 32px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.guarantee h3 {
    margin-bottom: 16px;
}

/* FAQ Section */
.faq {
    padding: 100px 0;
    background: white;
}

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

.faq-item {
    background: var(--lighter);
    padding: 32px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.faq-item h3 {
    margin-bottom: 16px;
    color: var(--dark);
}

.faq-item p {
    margin-bottom: 0;
}

/* Download Section */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

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

.download p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: 32px;
}

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

.download .btn-primary:hover {
    background: var(--lighter);
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    padding: 60px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
}

.footer-section h4 {
    color: white;
    margin-bottom: 16px;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
}

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

.footer-section li {
    margin-bottom: 12px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    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: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 3rem;
    }

    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .nav-links {
        display: none;
    }

    .speed-comparison {
        flex-direction: column;
    }

    .speed-arrow-big {
        transform: rotate(90deg);
    }

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

    .btn-large {
        width: 100%;
    }
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: var(--lighter);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.contact-card {
    background: white;
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

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

.contact-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.contact-card h3 {
    color: var(--dark);
    margin-bottom: 12px;
    font-size: 22px;
}

.contact-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.contact-link {
    display: inline-block;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    background: var(--lighter);
    transition: all 0.3s ease;
}

.contact-link:hover {
    background: var(--primary);
    color: white;
    transform: scale(1.05);
}

.contact-note {
    margin-top: 48px;
    text-align: center;
    padding: 24px;
    background: white;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary);
}

.contact-note p {
    color: var(--text);
    margin: 0;
}