/* SyncList Landing Page - Design System */
:root {
    --primary: #5A7A9C;
    --primary-soft: #B8D4E8;
    --bg-color: #FAFBFC;
    --card-bg: #FFFFFF;
    --text-main: #2D3748;
    --text-muted: #718096;
    --accent: #A7C5DD;
    --border: #E2E8F0;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Header */
header {
    padding: 32px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 20px;
    color: var(--text-main);
    text-decoration: none;
}

.logo img {
    height: 32px;
    width: auto;
}

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

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-soft);
    color: var(--primary);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 52px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero p {
    font-size: 20px;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.btn {
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

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

.btn-secondary {
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Feature Grid */
.features {
    padding: 100px 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-soft);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--primary);
}

.feature-card h3 {
    margin-bottom: 12px;
    font-size: 20px;
}

.feature-card p {
    color: var(--text-muted);
}

/* Footer */
footer {
    padding: 60px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-links {
    display: flex;
    gap: 24px;
    justify-content: center;
    margin-bottom: 24px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

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

.copyright {
    color: var(--text-muted);
    font-size: 13px;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
    }

    .features {
        grid-template-columns: 1fr;
    }
}