:root {
    /* Colors */
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-glow: rgba(59, 130, 246, 0.5);
    
    /* Glassmorphism */
    --glass-bg: rgba(30, 41, 59, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    
    /* Variables */
    --container-max: 1200px;
    --radius-lg: 24px;
    --radius-md: 16px;
    --transition: all 0.3s ease;
}

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

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

/* Background Effects */
.bg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
    opacity: 0.4;
}
.bg-glow.top-left {
    top: -200px;
    left: -200px;
    background: radial-gradient(circle, var(--accent-purple), transparent 70%);
}
.bg-glow.bottom-right {
    bottom: -200px;
    right: -200px;
    background: radial-gradient(circle, var(--accent-blue), transparent 70%);
}

.grid-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -2;
    pointer-events: none;
}

/* Common */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}
.section {
    padding: 100px 0;
}
.text-gradient {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    font-size: 15px;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: white;
    border: none;
    box-shadow: 0 4px 15px var(--accent-glow);
}
.btn-primary:hover {
    box-shadow: 0 6px 20px var(--accent-glow);
    transform: translateY(-2px);
}
.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--glass-border);
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
}
.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

/* Header */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    padding: 20px 0;
    z-index: 100;
    transition: var(--transition);
}
.header.scrolled {
    background: rgba(2, 6, 23, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: 15px 0;
}
.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 24px;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-main);
}
.text-accent {
    color: var(--accent-blue);
}
.nav-menu {
    display: flex;
    gap: 30px;
}
.nav-menu a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}
.nav-menu a:hover {
    color: var(--text-main);
}
.header-actions {
    display: flex;
    gap: 15px;
}

/* Hero Section */
.hero {
    padding: 180px 0 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}
.hero-container {
    display: flex;
    align-items: center;
    gap: 60px;
}
.hero-content {
    flex: 1;
}
.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-blue);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}
.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}
.hero-desc {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 500px;
}
.hero-buttons {
    display: flex;
    gap: 20px;
}
.hero-visual {
    flex: 1;
    position: relative;
    perspective: 1000px;
}
.main-mockup {
    padding: 20px;
    transform: rotateY(-10deg) rotateX(5deg);
    transition: transform 0.5s ease;
}
.main-mockup:hover {
    transform: rotateY(0deg) rotateX(0deg);
}
.mockup-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 15px;
}
.dots {
    display: flex;
    gap: 6px;
}
.dots span {
    width: 12px; height: 12px; border-radius: 50%;
}
.dots span:nth-child(1) { background: #ef4444; }
.dots span:nth-child(2) { background: #eab308; }
.dots span:nth-child(3) { background: #22c55e; }
.mockup-title {
    flex: 1;
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}
.real-screenshot {
    width: 100%;
    border-radius: 8px;
    display: block;
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

/* Features */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}
.section-header h2 {
    font-size: 42px;
    margin-bottom: 15px;
}
.section-header p {
    color: var(--text-muted);
    font-size: 18px;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.feature-card {
    padding: 40px 30px;
    transition: var(--transition);
}
.feature-card:hover {
    transform: translateY(-10px);
    border-color: rgba(59, 130, 246, 0.3);
}
.feature-icon {
    width: 60px;
    height: 60px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--accent-blue);
    margin-bottom: 20px;
}
.feature-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
}
.feature-card p {
    color: var(--text-muted);
    font-size: 15px;
}

/* Showcase */
.showcase-container {
    display: flex;
    align-items: center;
    gap: 80px;
}
.showcase-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}
.phone-mockup {
    padding: 15px;
    border-radius: 40px;
    max-width: 300px;
    position: relative;
}
.phone-img {
    border-radius: 25px;
}
.showcase-content {
    flex: 1;
}
.showcase-content h2 {
    font-size: 42px;
    margin-bottom: 20px;
}
.showcase-content p {
    color: var(--text-muted);
    font-size: 18px;
    margin-bottom: 30px;
}
.check-list {
    list-style: none;
}
.check-list li {
    font-size: 16px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
}

/* CTA */
.cta-box {
    text-align: center;
    padding: 80px 40px;
    background: linear-gradient(to right, rgba(30,41,59,0.8), rgba(15,23,42,0.9));
    border: 1px solid rgba(139, 92, 246, 0.3);
}
.cta-box h2 {
    font-size: 36px;
    margin-bottom: 20px;
}
.cta-box p {
    color: var(--text-muted);
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Footer */
.footer {
    border-top: 1px solid var(--glass-border);
    padding: 40px 0;
    margin-top: 50px;
}
.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer-copy {
    color: var(--text-muted);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-container, .showcase-container {
        flex-direction: column;
        text-align: center;
    }
    .hero-title {
        font-size: 42px;
    }
    .hero-desc {
        margin: 0 auto 30px;
    }
    .hero-buttons {
        justify-content: center;
    }
    .nav-menu {
        display: none;
    }
    .main-mockup {
        transform: none;
        margin-top: 40px;
    }
    .check-list li {
        justify-content: center;
    }
}
@media (max-width: 576px) {
    .cta-buttons {
        flex-direction: column;
    }
    .header-actions {
        display: none;
    }
}