html[data-theme="light"] {
    --glass-bg: rgba(255, 255, 255, 0.72);
    --glass-border: rgba(30, 60, 90, 0.18);
    --glass-highlight: rgba(255, 255, 255, 0.95);
    --text-primary: #0f1a28;
    --text-muted: rgba(15, 26, 40, 0.72);
    --accent: #0d7ea8;
    --accent-glow: rgba(13, 126, 168, 0.25);
    --shadow-deep: 0 20px 48px rgba(15, 40, 70, 0.12);
    --shadow-lift: 0 10px 24px rgba(15, 40, 70, 0.08);
}

html[data-theme="light"] .epoch-bg::after {
    background:
        radial-gradient(ellipse 70% 55% at 50% 35%, rgba(255, 255, 255, 0.35), transparent 65%),
        linear-gradient(180deg, rgba(240, 248, 255, 0.15) 0%, rgba(200, 220, 240, 0.45) 100%);
}

html[data-theme="light"] .epoch-vignette {
    box-shadow: inset 0 0 80px rgba(255, 255, 255, 0.35);
}


html[data-theme="light"] .post-card--highlight {
    outline-color: var(--accent);
}