/* ══════════════════════════════════════════════════════════════════════════════
   YANKOLANKA TRAVELS — ANTI-AI HUMAN-CENTRIC EDITORIAL CURTAIN & PRELOADER
   Quiet luxury, crafted typography, and whisper-quiet curtain reveal.
   ══════════════════════════════════════════════════════════════════════════════ */

:root {
    --yl-curtain-bg: #0b0e0c;
    --yl-curtain-gold: #d4a853;
    --yl-curtain-text: #f5f0e8;
    --yl-curtain-subtext: rgba(245, 240, 232, 0.55);
}

/* Fullscreen Curtain Overlay */
.yl-curtain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    z-index: 9000; /* Below bottom nav (9999) so nav stays visible above loader */
    background-color: var(--yl-curtain-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    overflow: hidden;
    user-select: none;
    transform: translateY(0%);
    transition: transform 0.65s cubic-bezier(0.77, 0, 0.175, 1),
                opacity 0.65s cubic-bezier(0.77, 0, 0.175, 1),
                visibility 0.65s linear;
    will-change: transform, opacity, visibility;
    backface-visibility: hidden;
}

/* Hidden State — Silky Upward Slide Reveal */
.yl-curtain.yl-curtain--dismissed {
    transform: translateY(-100%);
    opacity: 0.98;
    pointer-events: none !important;
    visibility: hidden;
}

/* Top Edge Razor-Thin Progress Line */
.yl-curtain__progress-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--yl-curtain-gold);
    transform-origin: left center;
    transform: scaleX(0);
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 0 10px rgba(212, 168, 83, 0.4);
    z-index: 10;
}

/* Centered Editorial Brand Block */
.yl-curtain__center {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0 24px;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.yl-curtain.yl-curtain--dismissed .yl-curtain__center {
    opacity: 0;
    transform: translateY(-20px);
}

/* Brand Emblem Mark */
.yl-curtain__mark {
    width: 52px;
    height: 52px;
    margin-bottom: 24px;
    position: relative;
}

.yl-curtain__mark img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: grayscale(15%) contrast(105%);
}

/* Brand Serif Title */
.yl-curtain__title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 26px;
    font-weight: 500;
    letter-spacing: 0.22em;
    color: var(--yl-curtain-text);
    text-transform: uppercase;
    margin-bottom: 6px;
    line-height: 1.1;
}

.yl-curtain__subtitle {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 10.5px;
    font-weight: 500;
    letter-spacing: 0.32em;
    color: var(--yl-curtain-gold);
    text-transform: uppercase;
    margin-bottom: 32px;
    opacity: 0.85;
}

/* Minimalist Editorial Divider */
.yl-curtain__divider {
    width: 32px;
    height: 1px;
    background: rgba(212, 168, 83, 0.35);
    margin-bottom: 20px;
}

/* Quiet Status Text */
.yl-curtain__status {
    font-family: 'Playfair Display', Georgia, serif;
    font-style: italic;
    font-size: 13.5px;
    color: var(--yl-curtain-subtext);
    letter-spacing: 0.04em;
}

/* Standalone Top Hairline Navigation Bar for Instant Links */
.yl-nav-hairline {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--yl-curtain-gold);
    z-index: 9999;
    transform-origin: left center;
    transform: scaleX(0);
    transition: transform 0.25s ease-out, opacity 0.3s ease;
    opacity: 0;
    pointer-events: none;
    box-shadow: 0 1px 6px rgba(212, 168, 83, 0.5);
}

.yl-nav-hairline.yl-nav-hairline--active {
    opacity: 1;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .yl-curtain {
        transition: opacity 0.2s ease !important;
        transform: none !important;
    }
    .yl-curtain.yl-curtain--dismissed {
        transform: none !important;
        opacity: 0 !important;
    }
}