:root {
    --bg-color: #0a0a0c;
    --card-bg: rgba(20, 20, 25, 0.7);
    --accent-primary: #6366f1;
    --accent-secondary: #a855f7;
    --text-main: #e2e8f0;
    --text-dim: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.background-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.1) 0%, rgba(0, 0, 0, 0) 70%);
    pointer-events: none;
    z-index: -1;
}

.container {
    padding: 2rem;
    max-width: 600px;
    width: 100%;
    animation: fadeIn 1s ease-out;
}

.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
}

.lang-toggle {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
}

#toggle-btn {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

#toggle-btn:hover {
    background: var(--glass-border);
    color: var(--text-main);
    border-color: var(--accent-primary);
}

.content-wrapper {
    display: none;
    flex-direction: column;
    gap: 1.5rem;
}

.content-wrapper.active {
    display: flex;
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.title {
    font-size: 2.25rem;
    font-weight: 600;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-dim);
    line-height: 1.6;
    font-size: 1.125rem;
}

.divider {
    height: 1px;
    background: linear-gradient(to right, var(--glass-border), transparent);
    width: 100%;
}

.message {
    font-weight: 300;
    line-height: 1.8;
    color: var(--text-dim);
}

.message p {
    margin-bottom: 0.75rem;
}

.footer {
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-dim);
    opacity: 0.6;
}

.nginx-mock {
    margin-top: 2rem;
    font-family: monospace;
    font-size: 0.75rem;
    border-top: 1px solid var(--glass-border);
    padding-top: 1rem;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile adjustments */
@media (max-width: 480px) {
    .glass-card {
        padding: 2rem;
    }
    .title {
        font-size: 1.75rem;
    }
}