/* css/presence-idle.css
   MirroredPresence — idle overlay (screensaver / black screen)
   Layering: above the grid/header (≤1000), below .modal-backdrop (2000)
   and #presenceTransition (9999). */

#presenceIdleOverlay {
    position: fixed;
    inset: 0;
    z-index: 1500;
    background: #000;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    /* fade OUT — waking must feel instant */
    transition: opacity 0.25s ease, visibility 0s linear 0.25s;
}

#presenceIdleOverlay.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
    /* fade IN — slow, ambient */
    transition: opacity 1.5s ease, visibility 0s;
}

/* --- Screensaver mode: clock on a slow-drifting ambient background --- */

#presenceIdleOverlay .pi-ambient {
    position: absolute;
    inset: -25%;
    display: none;
    background:
        radial-gradient(ellipse 45% 60% at 30% 40%, rgba(40, 60, 90, 0.35), transparent 70%),
        radial-gradient(ellipse 50% 45% at 70% 65%, rgba(45, 35, 75, 0.3), transparent 70%),
        #030305;
    animation: pi-drift 90s ease-in-out infinite alternate;
    will-change: transform;
}

#presenceIdleOverlay.mode-screensaver .pi-ambient {
    display: block;
}

@keyframes pi-drift {
    0%   { transform: translate(0, 0) scale(1); }
    50%  { transform: translate(4%, -3%) scale(1.06); }
    100% { transform: translate(-4%, 3%) scale(1.02); }
}

#presenceIdleOverlay .pi-clock-block {
    position: relative;
    display: none;
    text-align: center;
    /* burn-in protection: gently drifts to a new spot every 60s */
    transition: transform 2s ease-in-out;
}

#presenceIdleOverlay.mode-screensaver .pi-clock-block {
    display: block;
}

#presenceIdleOverlay .pi-clock {
    font-size: clamp(4.5rem, 14vw, 10rem);
    font-weight: 200;
    letter-spacing: 0.04em;
    line-height: 1;
    color: rgba(255, 255, 255, 0.85);
    font-variant-numeric: tabular-nums;
}

#presenceIdleOverlay .pi-date {
    margin-top: 14px;
    font-size: clamp(0.9rem, 1.8vw, 1.25rem);
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.35);
}

#presenceIdleOverlay .pi-hint {
    position: absolute;
    bottom: 4vh;
    left: 0;
    right: 0;
    display: none;
    text-align: center;
    font-size: 0.8rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.18);
}

#presenceIdleOverlay.mode-screensaver .pi-hint {
    display: block;
}

/* --- Black mode: pure black, nothing rendered --- */

#presenceIdleOverlay.mode-black {
    background: #000;
}

#presenceIdleOverlay .pi-black-hint {
    position: absolute;
    bottom: 4vh;
    left: 0;
    right: 0;
    display: none;
    text-align: center;
    font-size: 0.8rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.28);
    opacity: 0;
    transition: opacity 0.6s ease;
}

#presenceIdleOverlay.mode-black .pi-black-hint {
    display: block;
}

#presenceIdleOverlay.mode-black .pi-black-hint.show {
    opacity: 1;
}