/* ═══════════════════════════════════════════════════════════════════
   Projector beam — a barely-visible warm light that slowly shifts,
   like light leaking through a film gate. CSS-only, zero JS.
   Attach <div class="projector"></div> after the grain div.
   ═══════════════════════════════════════════════════════════════════ */

.projector {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

/* The beam — a warm cone from upper-left, barely there */
.projector::before {
    content: "";
    position: absolute;
    top: -30%;
    left: -20%;
    width: 80%;
    height: 80%;
    background: radial-gradient(
        ellipse at center,
        rgba(246, 183, 60, 0.015) 0%,
        rgba(246, 183, 60, 0.008) 40%,
        transparent 70%
    );
    animation: beam-drift 40s ease-in-out infinite alternate;
}

/* A secondary cooler beam from lower-right — the fill light */
.projector::after {
    content: "";
    position: absolute;
    bottom: -20%;
    right: -15%;
    width: 60%;
    height: 60%;
    background: radial-gradient(
        ellipse at center,
        rgba(120, 130, 200, 0.012) 0%,
        rgba(120, 130, 200, 0.006) 40%,
        transparent 70%
    );
    animation: beam-drift-2 55s ease-in-out infinite alternate;
}

/* The dust: micro-specks drifting in the beam, like dust in projector light */
.projector-dust {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.dust-speck {
    position: absolute;
    width: 1px;
    height: 1px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    animation: dust-drift linear infinite;
}

@keyframes beam-drift {
    0%   { transform: translate(0, 0) rotate(0deg) scale(1); }
    25%  { transform: translate(4%, 3%) rotate(1deg) scale(1.05); }
    50%  { transform: translate(-2%, 5%) rotate(-0.5deg) scale(1.02); }
    75%  { transform: translate(3%, -2%) rotate(0.5deg) scale(1.06); }
    100% { transform: translate(-1%, 1%) rotate(0deg) scale(1); }
}

@keyframes beam-drift-2 {
    0%   { transform: translate(0, 0) scale(1); }
    33%  { transform: translate(-3%, -4%) scale(1.04); }
    66%  { transform: translate(4%, 2%) scale(1.01); }
    100% { transform: translate(-1%, -1%) scale(1.03); }
}

@keyframes dust-drift {
    0%   { transform: translate(0, 0); opacity: 0; }
    10%  { opacity: 1; }
    90%  { opacity: 1; }
    100% { transform: translate(var(--dx, 20px), var(--dy, -60px)); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
    .projector::before, .projector::after { animation: none; }
    .dust-speck { animation: none; opacity: 0.05; }
}