:root {
    --primary-blue: #3458d6;
    --bg-blue: #3458d6;
    --card-bg: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-muted: #6a6a6a;
    --link-color: #3458d6;
    --font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    background-color: var(--bg-blue);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden;
}

.mesh-background {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px),
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 24px 24px, 120px 120px, 120px 120px;
    z-index: 0;
}

.container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 520px;
    padding: 20px;
    text-align: center;
}

.card {
    background: var(--card-bg);
    padding: 64px 48px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    margin-bottom: 24px;
}

h1 {
    font-size: 28px;
    color: var(--text-primary);
    margin: 0 0 20px 0;
    font-weight: 700;
    letter-spacing: -0.01em;
}

p {
    margin: 0;
    font-size: 16px;
    line-height: 1.6;
}

.line-1 {
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-weight: 500;
}

.line-2 {
    color: var(--text-muted);
}

.main-link {
    display: inline-block;
    margin-top: 24px;
    color: var(--link-color);
    text-decoration: underline;
    font-weight: 600;
    font-size: 16px;
    transition: color 0.2s ease;
}

.main-link:hover {
    color: #2a47ad;
}

.bookmark-note {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 8px;
}

@media (max-width: 480px) {
    .card {
        padding: 48px 24px;
    }
    
    h1 {
        font-size: 24px;
    }
}