/* Global Variables */
:root {
    --color-primary: #6D28D9;
    --color-primary-light: #8B5CF6;
    --color-primary-dark: #5B21B6;
    --color-secondary: #C4B5FD;
    --color-dark: #0F172A;
    --color-dark-light: #1E293B;
    --color-light: #F8FAFC;
    --color-gray: #64748B;
    --color-gray-light: #CBD5E1;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    
    --font-main: 'Arial', sans-serif;
    --font-heading: 'Arial', sans-serif;
    --font-size-base: 16px;
    
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-xxl: 5rem;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --container-width: 1200px;
    --container-padding: 1rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-main);
    color: var(--color-light);
    background-color: var(--color-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

img, svg {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--color-primary-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

ul, ol {
    list-style-position: inside;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--space-md);
}

section {
    padding: var(--space-xl) 0;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Buttons */
.button {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
}

.button.primary {
    background-color: var(--color-primary);
    color: var(--color-light);
    box-shadow: 0 4px 10px rgba(109, 40, 217, 0.3);
}

.button.primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 14px rgba(109, 40, 217, 0.4);
}

.button.secondary {
    background-color: transparent;
    color: var(--color-primary-light);
    border: 2px solid var(--color-primary-light);
}

.button.secondary:hover {
    background-color: rgba(139, 92, 246, 0.1);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.button.large {
    padding: var(--space-md) var(--space-xl);
    font-size: 1.1rem;
}

.button.full-width {
    display: block;
    width: 100%;
}

/* Header */
header {
    background-color: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--container-padding);
}

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

nav ul {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
}

nav a {
    color: var(--color-gray-light);
    font-weight: 500;
    position: relative;
}

nav a:hover {
    color: var(--color-light);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-medium);
}

nav a:hover::after {
    width: 100%;
}

.nav-button {
    padding: var(--space-xs) var(--space-md);
    background-color: var(--color-primary);
    color: var(--color-light);
    border-radius: var(--border-radius-sm);
}

.nav-button:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-light);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
}

.menu-toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--color-light);
    transition: all var(--transition-medium);
}

/* Hero Section */
.hero {
    background-color: var(--color-dark);
    position: relative;
    overflow: hidden;
    padding: var(--space-xxl) 0;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(109, 40, 217, 0.1) 0%, rgba(15, 23, 42, 0.9) 100%);
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    margin-bottom: var(--space-lg);
    font-size: 3rem;
}

.hero h1 span {
    color: var(--color-primary-light);
    position: relative;
}

.hero h1 span::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: rgba(139, 92, 246, 0.2);
    z-index: -1;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: var(--space-lg);
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
}

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

/* Top Sites Section */
.top-sites {
    background-color: var(--color-dark-light);
}

.top-sites h2, 
.features h2, 
.comparison h2, 
.faq h2, 
.cta h2 {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.top-sites h2 span, 
.features h2 span, 
.comparison h2 span, 
.faq h2 span, 
.cta h2 span {
    color: var(--color-primary-light);
}

.section-desc {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--space-xl);
}

.sites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.site-card {
    background-color: rgba(30, 41, 59, 0.5);
    border-radius: var(--border-radius-lg);
    padding: var(--space-lg);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(196, 181, 253, 0.1);
}

.site-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.site-card.featured {
    background: linear-gradient(135deg, rgba(109, 40, 217, 0.2) 0%, rgba(30, 41, 59, 0.5) 100%);
    border: 1px solid rgba(196, 181, 253, 0.3);
}

.site-badge {
    position: absolute;
    top: 15px;
    right: -30px;
    background-color: var(--color-primary);
    color: var(--color-light);
    padding: 5px 40px;
    transform: rotate(45deg);
    font-size: 0.8rem;
    font-weight: 600;
}

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-md);
}

.rating {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.stars {
    color: var(--color-warning);
    letter-spacing: 2px;
    font-size: 1.2rem;
}

.score {
    color: var(--color-gray-light);
    font-weight: 600;
    font-size: 0.9rem;
}

.site-features ul {
    list-style-type: none;
    margin-bottom: var(--space-lg);
}

.site-features li {
    padding: var(--space-xs) 0;
    position: relative;
    padding-left: var(--space-lg);
}

.site-features li::before {
    content: "✓";
    color: var(--color-success);
    position: absolute;
    left: 0;
}

/* Features Section */
.features {
    background-color: var(--color-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    background-color: rgba(30, 41, 59, 0.5);
    border-radius: var(--border-radius-md);
    padding: var(--space-lg);
    text-align: center;
    transition: transform var(--transition-medium);
    border: 1px solid rgba(196, 181, 253, 0.1);
}

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

.feature-icon {
    margin-bottom: var(--space-md);
}

.feature-card h3 {
    margin-bottom: var(--space-sm);
}

/* Comparison Section */
.comparison {
    background-color: var(--color-dark-light);
}

.comparison-table {
    background-color: rgba(15, 23, 42, 0.5);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    margin: 0 auto;
    max-width: 800px;
    border: 1px solid rgba(196, 181, 253, 0.1);
}

.comparison-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    background-color: rgba(109, 40, 217, 0.2);
    padding: var(--space-md);
    font-weight: 700;
}

.comparison-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    padding: var(--space-md);
    border-bottom: 1px solid rgba(196, 181, 253, 0.1);
}

.comparison-row:last-child {
    border-bottom: none;
}

.ai-value {
    color: var(--color-success);
    font-weight: 500;
}

.trad-value {
    color: var(--color-gray-light);
}

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

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

.faq-item {
    background-color: rgba(30, 41, 59, 0.5);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--space-md);
    overflow: hidden;
    border: 1px solid rgba(196, 181, 253, 0.1);
}

.question {
    padding: var(--space-md);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.question h3 {
    margin-bottom: 0;
    font-size: 1.1rem;
}

.toggle {
    font-size: 1.5rem;
    transition: transform var(--transition-medium);
}

.faq-item.active .toggle {
    transform: rotate(45deg);
}

.answer {
    padding: 0 var(--space-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-medium), padding var(--transition-medium);
}

.faq-item.active .answer {
    padding: 0 var(--space-md) var(--space-md);
    max-height: 1000px;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, rgba(109, 40, 217, 0.3) 0%, rgba(15, 23, 42, 0.9) 100%);
    text-align: center;
    padding: var(--space-xxl) 0;
}

.cta p {
    max-width: 600px;
    margin: 0 auto var(--space-lg);
    font-size: 1.2rem;
}

/* Footer */
footer {
    background-color: var(--color-dark);
    padding: var(--space-xl) 0 var(--space-md);
    border-top: 1px solid rgba(196, 181, 253, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.footer-brand p {
    margin-bottom: var(--space-md);
}

.footer-logo {
    margin-top: var(--space-md);
}

.footer-nav h4, .footer-legal h4 {
    color: var(--color-gray-light);
    margin-bottom: var(--space-md);
}

.footer-nav ul, .footer-legal ul {
    list-style: none;
}

.footer-nav li, .footer-legal li {
    margin-bottom: var(--space-sm);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-md);
    border-top: 1px solid rgba(196, 181, 253, 0.1);
    color: var(--color-gray);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: var(--space-sm);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    background-color: var(--color-primary);
    color: var(--color-light);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-md);
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-5px);
}

/* Animations */
@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.pulse {
    animation: pulse 2s infinite;
}

/* Mobile Menu */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    nav ul {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--color-dark-light);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        transform: translateY(-100%);
        opacity: 0;
        transition: all var(--transition-medium);
        z-index: 99;
        box-shadow: var(--shadow-lg);
    }

    nav.active ul {
        transform: translateY(0);
        opacity: 1;
    }

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

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

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

    .hero .container {
        grid-template-columns: 1fr;
    }

    .hero-content {
        text-align: center;
        margin: 0 auto;
    }

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

    .hero-image {
        grid-row: 1;
        margin-bottom: var(--space-lg);
    }

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

    .comparison-table {
        font-size: 0.9rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.7rem;
    }
}