/* ============================================
   Page Transition - Curtain + Logo
   Desc: 페이지 간 이동 시 커튼 트랜지션
   ============================================ */

/* ── Base Overlay (hidden by default) ── */
.page-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    visibility: hidden;
}

.page-transition-overlay.is-active {
    visibility: visible;
    pointer-events: all;
}

/* ── Curtain ── */
.page-transition-overlay .pt-curtain {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #0a0a0a;
    transform: scaleY(0);
    will-change: transform;
}

/* ── Logo ── */
.page-transition-overlay .pt-loader {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
    opacity: 0;
    transform: translateY(8px) scale(0.92);
    will-change: opacity, transform;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.page-transition-overlay .pt-logo {
    width: 110px;
}

.page-transition-overlay .pt-logo img {
    width: 100%;
    height: auto;
}

.page-transition-overlay .pt-ring {
    width: 34px;
    height: 34px;
    border: 3px solid rgba(240, 108, 0, 0.22);
    border-top-color: #f06c00;
    border-radius: 50%;
    box-shadow: 0 0 22px rgba(240, 108, 0, 0.28);
    animation: pt-ring-spin 0.85s linear infinite;
}

@keyframes pt-ring-spin {
    to {
        transform: rotate(360deg);
    }
}

/* ═══════════════════════════════════════
   Instant coverage on page load
   (for arriving pages — no FOUC)
   ═══════════════════════════════════════ */
html.page-transitioning .page-transition-overlay {
    visibility: visible;
    pointer-events: all;
}

html.page-transitioning .page-transition-overlay .pt-curtain {
    transform: scaleY(1);
}

html.page-transitioning .page-transition-overlay .pt-loader {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Prevent scroll flash behind curtain */
html.page-transitioning {
    overflow: hidden !important;
}

/* Hide preloader if arriving via transition */
html.page-transitioning #preloader {
    display: none !important;
}