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

:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #818CF8;
    --dark: #0F172A;
    --dark-light: #1E293B;
    --gray-900: #111827;
    --gray-800: #1F2937;
    --gray-700: #374151;
    --gray-600: #4B5563;
    --gray-500: #6B7280;
    --gray-400: #9CA3AF;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --gray-50: #F9FAFB;
    --white: #FFFFFF;
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --gradient: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--dark);
    color: var(--gray-100);
    line-height: 1.6;
    font-size: 16px;
}

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

/* Typography */
h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: 1.25rem; }

.section-title {
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--gray-400);
    font-size: 1.125rem;
    margin-bottom: 48px;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
}

.btn-secondary {
    background: var(--dark-light);
    color: var(--white);
    border: 1px solid var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-700);
    border-color: var(--gray-600);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
}

.btn-nav {
    padding: 10px 20px;
    font-size: 0.875rem;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-800);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
}

.logo-icon {
    color: var(--primary-light);
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--gray-300);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color 0.2s;
}

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

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

/* Hero Section */
.hero {
    padding: 160px 0 80px;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: var(--dark-light);
    border: 1px solid var(--gray-700);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-light);
    margin-bottom: 24px;
}

.hero-title {
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-300);
    max-width: 600px;
    margin: 0 auto 32px;
}

.hero-subtitle strong {
    color: var(--white);
}

.hero-cta {
    margin-bottom: 64px;
}

.hero-note {
    margin-top: 12px;
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* Preview Cards */
.preview-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.preview-card {
    background: var(--dark-light);
    border: 1px solid var(--gray-700);
    border-radius: 12px;
    padding: 24px;
    width: 280px;
    position: relative;
}

.preview-label {
    position: absolute;
    top: -12px;
    left: 20px;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.label-before {
    background: var(--gray-700);
    color: var(--gray-300);
}

.label-after {
    background: var(--success);
    color: var(--white);
}

.preview-content {
    padding: 16px;
    background: var(--gray-800);
    border-radius: 8px;
    margin-bottom: 16px;
}

.preview-header-fake {
    width: 40%;
    height: 12px;
    background: var(--gray-600);
    border-radius: 4px;
    margin-bottom: 16px;
}

.preview-line {
    height: 8px;
    background: var(--gray-600);
    border-radius: 4px;
    margin-bottom: 8px;
}

.preview-line.highlight {
    background: var(--primary);
}

.preview-gap {
    height: 12px;
}

.preview-problems, .preview-wins {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.problem-tag, .win-tag {
    font-size: 0.75rem;
    padding: 4px 8px;
    border-radius: 4px;
}

.problem-tag {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

.win-tag {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.preview-arrow {
    font-size: 2rem;
    color: var(--gray-500);
}

@media (max-width: 768px) {
    .preview-arrow {
        transform: rotate(90deg);
    }
}

/* Problem Section */
.problem {
    padding: 80px 0;
    background: var(--gray-900);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.problem-card {
    text-align: center;
    padding: 32px;
    background: var(--dark-light);
    border: 1px solid var(--gray-800);
    border-radius: 12px;
}

.problem-stat {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary-light);
    margin-bottom: 16px;
}

.problem-card p {
    color: var(--gray-400);
}

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

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

.step-card {
    padding: 32px;
    background: var(--dark-light);
    border: 1px solid var(--gray-800);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.step-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.step-number {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    border-radius: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 20px;
}

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

.step-card p {
    color: var(--gray-400);
}

/* Pricing */
.pricing {
    padding: 100px 0;
    background: var(--gray-900);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    padding: 32px;
    background: var(--dark-light);
    border: 1px solid var(--gray-800);
    border-radius: 16px;
    position: relative;
}

.pricing-featured {
    border-color: var(--primary);
    transform: scale(1.02);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 16px;
    background: var(--gradient);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.pricing-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.pricing-price {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 4px;
}

.pricing-desc {
    color: var(--gray-500);
    font-size: 0.875rem;
    margin-bottom: 24px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 24px;
}

.pricing-features li {
    padding: 8px 0;
    color: var(--gray-300);
    font-size: 0.9375rem;
}

.pricing-guarantee {
    text-align: center;
    margin-top: 32px;
    color: var(--gray-400);
}

/* Testimonials */
.testimonials {
    padding: 100px 0;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.testimonial-card {
    padding: 32px;
    background: var(--dark-light);
    border: 1px solid var(--gray-800);
    border-radius: 12px;
}

.testimonial-stars {
    color: var(--warning);
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.testimonial-text {
    color: var(--gray-300);
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 44px;
    height: 44px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.testimonial-name {
    font-weight: 600;
    color: var(--white);
}

.testimonial-role {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* FAQ */
.faq {
    padding: 100px 0;
    background: var(--gray-900);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

@media (max-width: 500px) {
    .faq-grid {
        grid-template-columns: 1fr;
    }
}

.faq-item {
    padding: 24px;
    background: var(--dark-light);
    border: 1px solid var(--gray-800);
    border-radius: 12px;
}

.faq-question {
    margin-bottom: 12px;
    color: var(--white);
    font-size: 1.0625rem;
}

.faq-answer {
    color: var(--gray-400);
    font-size: 0.9375rem;
}

/* Final CTA */
.final-cta {
    padding: 100px 0;
    text-align: center;
    background: var(--gradient);
}

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

.final-cta p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 32px;
}

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

.final-cta .btn:hover {
    background: var(--gray-100);
}

/* Footer */
.footer {
    padding: 64px 0 32px;
    background: var(--dark);
    border-top: 1px solid var(--gray-800);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 32px;
    margin-bottom: 48px;
}

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

.footer-brand p {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--gray-500);
    margin-top: 8px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color 0.2s;
}

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

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--gray-800);
    text-align: center;
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .hero {
        padding: 120px 0 60px;
    }
    
    .preview-container {
        flex-direction: column;
    }
    
    .preview-card {
        width: 100%;
        max-width: 320px;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}