/* ============================================================
   Тема 3: Ледяная бездна (холодная схема)
   ============================================================ */

body.theme-ice {
    background: #0a0f1a;
    background-image: radial-gradient(circle at 30% 60%, #1a2a4a 0%, #0a0f1a 80%);
}

.theme-ice .game-wrapper {
    background: #0f1a2a;
    box-shadow: 0 0 60px rgba(0, 150, 255, 0.25);
    border: 1px solid #2a5a8a;
}

.theme-ice .main-nav a {
    color: #88aacc;
}
.theme-ice .main-nav a:hover {
    background: #1a2a4a;
    color: #aaddff;
}
.theme-ice .main-nav a.active {
    background: #1a2a4a;
    color: #66aaff;
}

.theme-ice canvas {
    background: #0a0f1a;
    border-color: #2a5a8a;
}

.theme-ice .info {
    color: #88aacc;
}
.theme-ice .info span {
    color: #66aaff;
}

.theme-ice .controls {
    color: #556688;
    border-top-color: #1a2a4a;
}
.theme-ice .controls kbd {
    background: #0f1a2a;
    border-color: #2a5a8a;
    color: #aaddff;
}

/* Мерцание льда */
@keyframes iceSparkle {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
}
.theme-ice .ice-sparkle {
    animation: iceSparkle 1.5s infinite alternate;
}