/* ═══════════════════════════════════════════════════════════════
   D6 — PRELOADER "LIQUID GILD" (variant A, approved)
   Ported from design-variants/D6-preloader-A-liquid-gild.html
   Full-page page-load preloader: two stacked copies of the 3D
   JS Agency PNG (a faded "ghost" layer + a liquid-fill layer)
   fill from bottom to top as real readiness milestones land
   (DOM ready / fonts ready / window load), while the approved
   slogan "Vaša vízia - naša misia" reveals left-to-right in sync.
   Reuses the site's --accent gold token (css/premium.css :root)
   for the fill color; --d6-gold-deep / --d6-paper are local
   companions the prototype needs but the site tokens don't define.
   Loaded after css/custom.css so it wins the cascade on the
   reused ".preloader" class name — the old custom.css rules are
   inert dead code once this file is present.
   ═══════════════════════════════════════════════════════════════ */

.preloader {
    --load-level: 8%;
    --d6-gold: var(--accent, #c9a255);
    --d6-gold-deep: #aa8738;
    --d6-paper: #f2eee6;
    --d6-ease: cubic-bezier(.22, 1, .36, 1);

    position: fixed;
    inset: 0;
    z-index: 99999;
    overflow: hidden;
    display: grid;
    place-items: center;
    justify-content: normal;
    color: var(--d6-paper);
    background: #080807;
    visibility: visible;
}

.preloader[hidden] { display: none; }

.preloader::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background:
        radial-gradient(circle at 50% 45%, rgba(201, 162, 85, .095), transparent 21rem),
        linear-gradient(90deg, transparent 49.9%, rgba(201, 162, 85, .09) 50%, transparent 50.1%);
}

.preloader.is-exiting { background: transparent; }

.preloader.is-exiting::before { opacity: 0; }

.preloader__sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    white-space: nowrap !important;
    border: 0 !important;
    clip: rect(0, 0, 0, 0) !important;
}

.gild-curtain {
    position: absolute;
    z-index: 0;
    left: 0;
    width: 100%;
    height: 50.2%;
    background: #080807;
    transition: transform .9s var(--d6-ease);
}

.gild-curtain--top { top: 0; }
.gild-curtain--bottom { bottom: 0; }

.preloader.is-exiting .gild-curtain--top { transform: translateX(-101%); }
.preloader.is-exiting .gild-curtain--bottom { transform: translateX(101%); }

.preloader__rail {
    position: absolute;
    z-index: 3;
    left: clamp(18px, 4vw, 54px);
    top: 50%;
    width: 1px;
    height: min(46%, 330px);
    transform: translateY(-50%);
    background: rgba(201, 162, 85, .2);
}

.preloader__rail-fill {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 1px;
    height: 100%;
    clip-path: inset(calc(100% - var(--load-level)) 0 0 0);
    background: var(--d6-gold);
    box-shadow: 0 0 14px rgba(201, 162, 85, .65);
    transition: clip-path .72s var(--d6-ease);
}

.preloader__wordmark {
    position: absolute;
    z-index: 3;
    left: clamp(18px, 4vw, 54px);
    top: 34px;
    color: #8e897f;
    font-size: .64rem;
    font-weight: 700;
    letter-spacing: .18em;
    text-transform: uppercase;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
}

.preloader__milestones {
    position: absolute;
    z-index: 3;
    right: clamp(18px, 4vw, 54px);
    top: 50%;
    display: grid;
    gap: 22px;
    transform: translateY(-50%);
}

.preloader__milestone {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 11px;
    color: #5f5c56;
    font-size: .58rem;
    font-weight: 700;
    letter-spacing: .16em;
    text-transform: uppercase;
    transition: color .4s ease;
}

.preloader__milestone::after {
    content: "";
    width: 5px;
    height: 5px;
    border: 1px solid #655f53;
    border-radius: 50%;
    transition: background .35s ease, border-color .35s ease, box-shadow .35s ease;
}

.preloader__milestone.is-ready { color: #bbb5a9; }

.preloader__milestone.is-ready::after {
    background: var(--d6-gold);
    border-color: var(--d6-gold);
    box-shadow: 0 0 12px rgba(201, 162, 85, .7);
}

.gild-core {
    position: relative;
    z-index: 3;
    width: min(62vw, 500px);
    display: grid;
    justify-items: center;
    transition: opacity .34s ease, transform .65s var(--d6-ease);
}

.preloader.is-exiting .gild-core,
.preloader.is-exiting .preloader__rail,
.preloader.is-exiting .preloader__wordmark,
.preloader.is-exiting .preloader__milestones {
    opacity: 0;
    transform: translateY(-50%) scale(.96);
}

.preloader.is-exiting .gild-core { transform: scale(.96); }

.logo-well {
    position: relative;
    width: 100%;
    height: 0;
    padding-top: 100%;
}

@supports (aspect-ratio: 1 / 1) {
    .logo-well {
        height: auto;
        padding-top: 0;
        aspect-ratio: 1 / 1;
    }
}

.logo-well::before,
.logo-well::after {
    content: "";
    position: absolute;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(201, 162, 85, .18), transparent);
}

.logo-well::before { top: -20px; }
.logo-well::after { bottom: -20px; }

.logo-layer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
    user-select: none;
    pointer-events: none;
}

.logo-layer--ghost {
    opacity: .16;
    filter: grayscale(1) brightness(.75) contrast(1.15);
}

.liquid-fill {
    position: absolute;
    z-index: 2;
    left: 0;
    right: 0;
    bottom: 0;
    height: 100%;
    clip-path: inset(calc(100% - var(--load-level)) 0 0 0);
    overflow: hidden;
    transition: clip-path .8s var(--d6-ease);
}

.liquid-fill .logo-layer {
    top: 0;
    bottom: auto;
    height: 100%;
    aspect-ratio: auto;
    filter: drop-shadow(0 0 28px rgba(201, 162, 85, .24));
}

.liquid-line {
    position: absolute;
    z-index: 4;
    left: 8%;
    right: 8%;
    top: -2px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--d6-gold-deep) 17%, #f2d897 50%, var(--d6-gold-deep) 83%, transparent);
    box-shadow: 0 0 18px rgba(230, 201, 130, .7), 0 4px 16px rgba(201, 162, 85, .34);
    animation: d6-liquid-breathe 1.4s ease-in-out infinite alternate;
}

.liquid-line::after {
    content: "";
    position: absolute;
    inset: -6px 0;
    background: linear-gradient(90deg, transparent 8%, rgba(255, 255, 255, .66) 46%, transparent 72%);
    transform: translateX(-60%);
    animation: d6-liquid-scan 1.9s ease-in-out infinite;
}

@keyframes d6-liquid-breathe {
    from { transform: translateY(-1px) scaleX(.96); opacity: .72; }
    to { transform: translateY(1px) scaleX(1); opacity: 1; }
}

@keyframes d6-liquid-scan {
    0% { transform: translateX(-72%); opacity: 0; }
    20% { opacity: 1; }
    76%, 100% { transform: translateX(78%); opacity: 0; }
}

.slogan-wrap {
    position: relative;
    width: max-content;
    max-width: 100%;
    margin-top: clamp(42px, 7vw, 68px);
    overflow: hidden;
}

.slogan,
.slogan-reveal__text {
    margin: 0;
    white-space: nowrap;
    font-size: clamp(.76rem, 1.5vw, 1rem);
    font-weight: 520;
    letter-spacing: .2em;
}

.slogan {
    color: rgba(242, 238, 230, .2);
}

.slogan-reveal {
    position: absolute;
    inset: 0 auto 0 0;
    width: 100%;
    clip-path: inset(0 calc(100% - var(--load-level)) 0 0);
    overflow: hidden;
    transition: clip-path .8s var(--d6-ease);
}

.slogan-reveal__text {
    width: max-content;
    color: var(--d6-paper);
}

.slogan-sweep {
    position: absolute;
    z-index: 2;
    top: -80%;
    bottom: -80%;
    left: var(--load-level);
    width: 34px;
    transform: translateX(-50%) skewX(-14deg);
    background: linear-gradient(90deg, transparent, rgba(242, 213, 143, .75), transparent);
    opacity: .82;
    transition: left .8s var(--d6-ease);
    pointer-events: none;
}

@media (max-width: 560px) {
    .preloader__wordmark { display: none; }
    .preloader__milestones { display: none; }
    .preloader__rail { left: 20px; height: 37%; }
    .gild-core {
        width: calc(100vw - 94px);
        max-width: 430px;
        min-width: 0;
    }
    .slogan-wrap { width: 100%; }
    .slogan, .slogan-reveal__text {
        width: 100%;
        text-align: center;
        white-space: normal;
    }
    .slogan-reveal__text {
        width: calc(100vw - 94px);
        max-width: 430px;
    }
    .slogan, .slogan-reveal__text { letter-spacing: .11em; }
}

@media (prefers-reduced-motion: reduce) {
    .preloader,
    .preloader *,
    .preloader *::before,
    .preloader *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
    .slogan-sweep, .liquid-line::after { display: none; }
}

/* No-JS fallback: if scripting is disabled entirely, d6-preloader-liquid-gild.js
   never runs, so the readiness-driven exit can never fire. Hide the overlay
   outright via <noscript> in the markup (see partials/header.php) so the site
   is never left permanently blocked by a preloader that can't self-remove. */