/* ── Winter Theme ────────────────── */
.theme-winter {
    --bg-dark: hsl(220, 40%, 10%); /* Midnight Ice */
    --surface: hsl(220, 30%, 15%);
    --surface-light: hsl(220, 25%, 20%);
    --text-main: #e0f2fe;
    --text-muted: hsl(220, 20%, 65%);
    --accent: #7dd3fc; /* Ice Blue */
    
    --glass-bg: hsla(220, 30%, 20%, 0.6);
    --glass-border: hsla(180, 100%, 100%, 0.15);
    --glass-shadow: 0 10px 40px rgba(125, 211, 252, 0.1);
    
    --breakfast: #7dd3fc; /* Ice Blue */
    --lunch: #f8fafc;    /* Pure Snow White */
    --dinner: #1e40af;   /* Royal Blue */
    --snacks: #ef4444;   /* Holly Red */
}

.theme-winter body {
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
}

.theme-winter .logo-text span {
    color: var(--accent);
    text-shadow: 0 0 10px rgba(125, 211, 252, 0.5);
}

.theme-winter .summary-card {
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.05);
}

.theme-winter .box.filled {
    box-shadow: 0 0 10px rgba(125, 211, 252, 0.3);
    background-image: linear-gradient(135deg, rgba(255,255,255,0.4), transparent);
}