:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #facc15;
    --text: #1e293b;
    --text-muted: #64748b;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --white: #ffffff;
    --container-width: 1200px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text);
    line-height: 1.6;
    background-color: var(--bg);
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Nav */
header {
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary);
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 600;
    transition: var(--transition);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-small {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(37, 99, 235, 0.2);
}

.btn-secondary {
    background-color: var(--bg-alt);
    color: var(--text);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

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

/* Hero Section */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding: 8rem 0;
    gap: 4rem;
}

.hero-content h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.hero-content h1 span {
    color: var(--primary);
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-btns {
    display: flex;
    gap: 1rem;
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
}

.featured-img {
    width: 100%;
    max-width: 600px;
    border-radius: 24px;
    box-shadow: 0 50px 100px -20px rgba(0, 0, 0, 0.15);
    z-index: 2;
    animation: floating 6s ease-in-out infinite;
}

.gradient-blur {
    position: absolute;
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    opacity: 0.15;
    filter: blur(80px);
    z-index: 1;
}

@keyframes floating {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* Features */
.features {
    padding: 8rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    padding: 3rem 2rem;
    background: var(--bg-alt);
    border-radius: 24px;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    background: var(--white);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.feature-card .icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

/* How It Works */
.how-it-works {
    background-color: var(--primary);
    color: var(--white);
    padding: 8rem 0;
}

.how-it-works .section-header h2 {
    margin-bottom: 4rem;
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4rem;
}

.step {
    text-align: center;
}

.step-num {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0 auto 1.5rem;
}

/* Article Section */
.article-section {
    padding: 8rem 0;
    max-width: 800px;
}

.article-section h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.article-section p {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.cta-box {
    margin-top: 4rem;
    padding: 4rem;
    background: var(--bg-alt);
    border-radius: 32px;
    text-align: center;
}

.cta-box h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

/* Footer */
footer {
    padding: 6rem 0 3rem;
    background: var(--bg-alt);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
}

.footer-brand p {
    margin-top: 1.5rem;
    color: var(--text-muted);
}

.footer-links h4, .footer-social h4 {
    margin-bottom: 1.5rem;
    font-weight: 700;
}

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

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    text-decoration: none;
    color: var(--text-muted);
    transition: var(--transition);
}

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

/* Responsive */
@media (max-width: 992px) {
    .hero {
        grid-template-columns: 1fr;
        padding: 4rem 0;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .hero-content p {
        margin: 0 auto 2.5rem;
    }
    
    .hero-btns {
        justify-content: center;
    }
    
    .feature-grid, .steps {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .logo {
        justify-content: center;
    }
    
    .nav-links {
        display: none;
    }
}