/* ══════════════════════════════════════════════
   evolution-entrance.css
   Cinematic Evolution Entrance Celebration.
   ══════════════════════════════════════════════ */

.evo-overlay {
    position: fixed;
    inset: 0;
    z-index: 270; /* above level-up (265) */
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(7, 11, 18, 0.94);
    backdrop-filter: blur(10px);
    padding: var(--space-4);
    animation: evoOverlayIn 0.6s ease-out both;
    pointer-events: none;
}

.evo-overlay.evo-active {
    pointer-events: auto;
}

.evo-overlay.evo-exit {
    animation: evoOverlayOut 0.5s ease-in forwards;
}

@keyframes evoOverlayIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes evoOverlayOut {
    from { opacity: 1; }
    to   { opacity: 0; }
}

.evo-stage {
    position: relative;
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1 / 1.2;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

/* ── Old character ── */
.evo-old-wrap {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1);
    width: 50%;
    max-width: 260px;
    aspect-ratio: 1 / 1.2;
    z-index: 2;
    opacity: 0;
    animation: evoOldAppear 0.4s ease-out 0.15s both;
}

.evo-old-wrap.evo-knocked {
    animation: evoKnockOut 0.5s cubic-bezier(0.25, 0.1, 0.25, 1) forwards;
}

@keyframes evoOldAppear {
    0%   { opacity: 0; transform: translate(-50%, -50%) scale(0.7); }
    100% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

@keyframes evoKnockOut {
    0%   { opacity: 1; transform: translate(-50%, -50%) scale(1) rotate(0deg); }
    30%  { transform: translate(-50%, -50%) scale(0.95) rotate(-8deg); }
    100% { opacity: 0; transform: translate(-130%, -60%) scale(0.6) rotate(-20deg); }
}

.evo-old-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center bottom;
    filter: drop-shadow(0 0 20px rgba(200, 200, 200, 0.3));
}

/* ── New character ── */
.evo-new-wrap {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(80%, -50%) scale(0.8);
    width: 50%;
    max-width: 260px;
    aspect-ratio: 1 / 1.2;
    z-index: 3;
    opacity: 0;
    transition: transform 0.8s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.8s ease;
}

.evo-new-wrap.evo-entering {
    opacity: 1;
    transform: translate(calc(-50% + 20%), -50%) scale(1.05);
}

.evo-new-wrap.evo-impact {
    transform: translate(-50%, -50%) scale(1.1);
    transition-duration: 0.15s;
}

.evo-new-wrap.evo-settle {
    transform: translate(-50%, -50%) scale(1);
    transition-duration: 0.4s;
    transition-timing-function: cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.evo-new-wrap.evo-hero-pos {
    transform: translate(0%, -50%) scale(0.9);
    transition-duration: 0.6s;
    transition-timing-function: ease-in-out;
}

.evo-new-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center bottom;
    filter: drop-shadow(0 0 30px rgba(0, 200, 255, 0.6));
}

/* ── Impact flash ── */
.evo-impact-flash {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30%;
    aspect-ratio: 1;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.8) 0%, rgba(100, 200, 255, 0.4) 40%, transparent 70%);
    filter: blur(15px);
    z-index: 4;
    opacity: 0;
    pointer-events: none;
    animation: evoImpactFlash 0.6s ease-out 1.35s both;
}

@keyframes evoImpactFlash {
    0%   { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
    30%  { opacity: 1; transform: translate(-50%, -50%) scale(1.5); }
    100% { opacity: 0; transform: translate(-50%, -50%) scale(2.5); }
}

/* ── Impact particles ── */
.evo-particles {
    position: absolute;
    inset: 0;
    z-index: 5;
    pointer-events: none;
}

.evo-particle {
    position: absolute;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #88ddff;
    box-shadow: 0 0 10px #66ccff;
    opacity: 0;
    animation: evoParticleBurst 0.8s ease-out 1.35s both;
}

@keyframes evoParticleBurst {
    0%   { opacity: 0; transform: translate(0, 0) scale(0.5); }
    30%  { opacity: 1; transform: translate(var(--tx), var(--ty)) scale(1.2); }
    100% { opacity: 0; transform: translate(calc(var(--tx) * 1.5), calc(var(--ty) * 1.5)) scale(0.3); }
}

/* ── Evolution title ── */
.evo-title {
    position: absolute;
    top: 15%;
    left: 50%;
    transform: translateX(-50%);
    font-family: 'Oswald', var(--font), sans-serif;
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: linear-gradient(180deg, #fff5d6 0%, #f0c860 40%, #e2b04a 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 40px rgba(226, 176, 74, 0.3);
    opacity: 0;
    z-index: 6;
    animation: evoTitleAppear 0.5s ease-out 1.8s both;
}

@keyframes evoTitleAppear {
    0%   { opacity: 0; transform: translateX(-50%) scale(0.3); }
    70%  { opacity: 1; transform: translateX(-50%) scale(1.05); }
    100% { opacity: 1; transform: translateX(-50%) scale(1); }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
    .evo-overlay,
    .evo-overlay.evo-exit {
        animation: none;
        opacity: 1;
    }
    .evo-overlay.evo-exit { opacity: 0; }

    .evo-old-wrap {
        animation: none;
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    .evo-old-wrap.evo-knocked {
        animation: none;
        opacity: 0;
        transform: translate(-80%, -50%) scale(0.7);
    }

    .evo-new-wrap {
        transition: none;
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    .evo-new-wrap.evo-entering,
    .evo-new-wrap.evo-impact,
    .evo-new-wrap.evo-settle,
    .evo-new-wrap.evo-hero-pos {
        transform: translate(-50%, -50%) scale(1);
        transition: none;
    }

    .evo-impact-flash {
        animation: none;
        opacity: 0.3;
        transform: translate(-50%, -50%) scale(1);
    }

    .evo-particle {
        display: none;
    }

    .evo-title {
        animation: none;
        opacity: 1;
        transform: translateX(-50%) scale(1);
    }
}