/* ==========================================
   THE BEYOND — the chamber past the last door.
   A tesseract turns in an iridescent void.
   Reuses style.css for atmosphere + tokens.
   ========================================== */

.beyond-page {
    background: var(--deep-night);
    min-height: 100vh;
    overflow: hidden;
}

/* shift the atmosphere cooler/stranger than the warm Hall */
.beyond-page .cosmic-background {
    background:
        radial-gradient(60% 50% at 50% 50%, rgba(123,79,168,0.5) 0%, transparent 60%),
        radial-gradient(70% 60% at 20% 10%, rgba(60,180,190,0.22) 0%, transparent 55%),
        radial-gradient(70% 60% at 85% 90%, rgba(255,166,184,0.16) 0%, transparent 55%),
        linear-gradient(160deg, #0a0814 0%, #140d24 45%, #0c0a1a 100%);
}

.beyond-stage {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

/* glow that pulses behind the hypercube */
.beyond-stage::before {
    content: "";
    position: absolute;
    width: min(70vmin, 620px);
    height: min(70vmin, 620px);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,207,90,0.16) 0%, rgba(123,79,168,0.12) 40%, transparent 70%);
    animation: beyond-pulse 6s ease-in-out infinite;
}

@keyframes beyond-pulse {
    0%, 100% { transform: scale(0.92); opacity: 0.7; }
    50%      { transform: scale(1.08); opacity: 1; }
}

.tess-wrap {
    position: relative;
    width: min(86vmin, 760px);
    height: min(86vmin, 760px);
    /* "shifting reality" — slow hue drift + a soft glow on the whole figure */
    filter: drop-shadow(0 0 6px rgba(255,207,90,0.5)) drop-shadow(0 0 16px rgba(123,79,168,0.4));
    animation: reality-shift 26s linear infinite;
}

@keyframes reality-shift {
    to { filter: drop-shadow(0 0 6px rgba(255,207,90,0.5)) drop-shadow(0 0 16px rgba(123,79,168,0.4)) hue-rotate(360deg); }
}

#tess {
    width: 100%;
    height: 100%;
    display: block;
    overflow: visible;
}

#tess .edge {
    stroke: var(--sacred-gold);
    stroke-width: 2.6;
    stroke-linecap: round;
}

#tess .vtx {
    fill: var(--cosmic-white);
}

/* ==========================================
   TEXT — kicker, line, return
   ========================================== */

.beyond-text {
    position: fixed;
    inset: 0;
    z-index: 3;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: clamp(2rem, 5vh, 4rem) 1.5rem;
    text-align: center;
}

.beyond-kicker {
    font-family: 'Cinzel', serif;
    font-size: clamp(0.95rem, 0.7rem + 1.4vw, 1.5rem);
    font-weight: 600;
    letter-spacing: 0.42em;
    text-indent: 0.42em;
    text-transform: uppercase;
    color: var(--sacred-gold);
    text-shadow: 0 0 28px rgba(123,79,168,0.7);
    animation: beyond-fade 2s ease-out;
}

.beyond-kicker .kicker-sub {
    display: block;
    margin-top: 0.9rem;
    font-family: 'Cormorant Garamond', serif;
    font-style: italic;
    font-weight: 400;
    font-size: clamp(1rem, 0.9rem + 0.6vw, 1.3rem);
    letter-spacing: 0.04em;
    text-indent: 0;
    text-transform: none;
    color: var(--warm-peach);
    opacity: 0.9;
}

.beyond-return {
    pointer-events: auto;
    font-family: 'Cinzel', serif;
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--warm-peach);
    text-decoration: none;
    padding: 0.8rem 1.6rem;
    border: 1px solid rgba(255,207,90,0.4);
    border-radius: 3px;
    transition: color var(--dur-fast) ease, border-color var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
    animation: beyond-fade 2s ease-out 0.4s backwards;
}

.beyond-return:hover,
.beyond-return:focus-visible {
    color: var(--sacred-gold);
    border-color: var(--sacred-gold);
    box-shadow: 0 0 22px rgba(255,207,90,0.3);
    outline: none;
}

@keyframes beyond-fade {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
    .beyond-stage::before,
    .tess-wrap,
    .beyond-kicker,
    .beyond-return { animation: none; }
}