:root {
    --bg-color: #f8fafc;
    --text-color: #0f172a;
    --muted-color: #64748b;
    --accent-color: #3b82f6;
    --card-bg: #ffffff;
    --card-shadow:
        0 4px 6px -1px rgb(0 0 0 / 0.1),
        0 2px 4px -2px rgb(0 0 0 / 0.1);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0f172a;
        --text-color: #f8fafc;
        --muted-color: #94a3b8;
        --accent-color: #60a5fa;
        --card-bg: #1e293b;
        --card-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.5);
    }
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
        Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    transition: background-color 0.3s ease;
}

.container {
    text-align: center;
    max-width: 500px;
    width: 100%;
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    transition:
        background-color 0.3s ease,
        box-shadow 0.3s ease;
}

.icon {
    font-size: 64px;
    margin-bottom: 24px;
    display: inline-block;
    animation: pulse 2s infinite ease-in-out;
}

h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

p {
    font-size: 16px;
    color: var(--muted-color);
    line-height: 1.6;
    margin-bottom: 24px;
}

.badge {
    display: inline-block;
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
    padding: 6px 12px;
    border-radius: 9999px;
    font-size: 14px;
    font-weight: 600;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.05);
        opacity: 0.85;
    }
}