:root {
    --bg-dark: #0a0a0f;
    --bg-darker: #050508;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent-primary: #8b5cf6;
    --accent-secondary: #ec4899;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.05);
}

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

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, 'Helvetica Neue', 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Background Glow Effects */
.bg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, rgba(10, 10, 15, 0) 70%);
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
}

.top-glow {
    top: -200px;
    left: -100px;
}

.bottom-glow {
    bottom: -200px;
    right: -100px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.1) 0%, rgba(10, 10, 15, 0) 70%);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 100;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff 0%, #a5a5a5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-contact {
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.nav-contact:hover {
    background: rgba(255, 255, 255, 0.08);
}

/* Hero Section */
.hero {
    padding: 160px 0 80px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-primary);
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin-bottom: 40px;
    font-weight: 400;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: not-allowed;
    border: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: white;
    opacity: 0.9;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(139, 92, 246, 0.4);
}

/* Features Section */
.features {
    padding: 80px 0 120px;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    letter-spacing: -0.02em;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px 30px;
    transition: transform 0.3s ease, background 0.3s ease;
}

.glass:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: rgba(139, 92, 246, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    margin-bottom: 24px;
}

.feature-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.feature-desc {
    color: var(--text-muted);
    font-size: 1.05rem;
}

/* Footer */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--glass-border);
    padding: 60px 0 40px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
}

.footer-info .copyright {
    color: var(--text-muted);
    margin-top: 12px;
    font-size: 0.9rem;
}

.footer-links h4 {
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.footer-links a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 8px;
    transition: color 0.2s ease;
}

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

.privacy-link {
    font-size: 0.9rem;
    margin-top: 16px;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .hero {
        padding: 120px 0 60px;
    }
    .footer-content {
        flex-direction: column;
    }
}