:root {
    --frozen-glass: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.25);
    --accent: #38bdf8;
}

body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    overflow: hidden;
    color: white;
}

/* Liquid Glass Background */
.liquid-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(-45deg, #0f172a, #1e3a8a, #0ea5e9, #000000);
    background-size: 400% 400%;
    animation: fluid 15s ease infinite;
}

@keyframes fluid {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.desktop {
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* Frozen Glass Panel */
.window {
    width: 90%;
    max-width: 550px;
    background: var(--frozen-glass);
    backdrop-filter: blur(25px) saturate(160%);
    -webkit-backdrop-filter: blur(25px) saturate(160%);
    border: 1px solid var(--glass-border);
    border-radius: 28px;
    padding: 20px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.os-title {
    font-weight: 200;
    letter-spacing: 8px;
    margin: 20px 0;
    text-align: center;
}

.window-header {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}

.dot { width: 12px; height: 12px; border-radius: 50%; }
.red { background: #ff5f56; }
.yellow { background: #ffbd2e; }
.green { background: #27c93f; }

.dock {
    position: fixed;
    bottom: 30px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    padding: 12px 25px;
    border-radius: 24px;
    display: flex;
    gap: 15px;
}

.dock-item {
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: 0.3s;
}

.dock-item:hover { transform: scale(1.2) translateY(-10px); background: var(--accent); }

.glass-btn, .action-btn {
    background: var(--frozen-glass);
    border: 1px solid var(--glass-border);
    color: white;
    padding: 10px 20px;
    border-radius: 12px;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: 0.2s;
}

.action-btn:hover { background: rgba(255,255,255,0.2); }

/* Language Switcher Logic */
[data-lang="ru"] .lang-en { display: none; }
[data-lang="en"] .lang-ru { display: none; }