/* Institutional preloader — restrained, GPU-friendly */

:root {
    --sish-pl-bg-deep: #241e14;
    --sish-pl-bg-mid: #3d3424;
    --sish-pl-bg-olive: #5b4d32;
    --sish-pl-gold: #b89a5e;
    --sish-pl-gold-muted: rgba(184, 154, 94, 0.45);
    --sish-pl-ivory: #e8dfd0;
    --sish-pl-ivory-soft: rgba(232, 223, 208, 0.68);
    --sish-pl-ease: cubic-bezier(0.33, 0, 0.2, 1);
    --sish-pl-seal: clamp(7.25rem, 22vw, 10.25rem);
    --sish-pl-reveal: 1.05s;
}

body.sish-loading {
    overflow: hidden;
}

body.sish-loading > *:not(#sish-preloader) {
    pointer-events: none;
}

.sish-preloader {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--sish-pl-bg-deep);
    isolation: isolate;
    transition:
        opacity 0.75s var(--sish-pl-ease),
        visibility 0.75s var(--sish-pl-ease),
        transform 0.75s var(--sish-pl-ease);
}

.sish-preloader.is-exiting {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: scale(1.012);
}

.sish-preloader.is-exiting .sish-preloader__stage {
    opacity: 0;
    transform: scale(0.985);
    transition:
        opacity 0.6s var(--sish-pl-ease),
        transform 0.6s var(--sish-pl-ease);
}

.sish-preloader__atmosphere {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 55% at 50% 38%, rgba(91, 77, 50, 0.55) 0%, transparent 70%),
        radial-gradient(ellipse 90% 80% at 50% 100%, rgba(36, 30, 20, 0.9) 0%, transparent 55%),
        linear-gradient(165deg, var(--sish-pl-bg-deep) 0%, var(--sish-pl-bg-olive) 48%, var(--sish-pl-bg-mid) 100%);
    opacity: 0;
    transition: opacity 0.9s var(--sish-pl-ease);
    pointer-events: none;
}

.sish-preloader.is-ready .sish-preloader__atmosphere {
    opacity: 1;
}

.sish-preloader__glow {
    position: absolute;
    top: 42%;
    left: 50%;
    width: min(72vw, 26rem);
    height: min(72vw, 26rem);
    transform: translate(-50%, -50%) scale(0.96);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(184, 154, 94, 0.2) 0%, rgba(184, 154, 94, 0.05) 42%, transparent 68%);
    opacity: 0;
    transition:
        opacity 1.4s var(--sish-pl-ease) 0.15s,
        transform 1.4s var(--sish-pl-ease) 0.15s;
    pointer-events: none;
}

.sish-preloader.is-armed .sish-preloader__glow {
    opacity: 0.75;
    transform: translate(-50%, -50%) scale(1);
    animation: sish-pl-glow-breathe 2.8s ease-in-out 1.2s infinite;
}

.sish-preloader__stage {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.25rem;
    width: min(100%, 28rem);
}

.sish-preloader__seal {
    position: relative;
    width: var(--sish-pl-seal);
    height: var(--sish-pl-seal);
    margin-bottom: clamp(1.25rem, 3.5vw, 1.85rem);
}

.sish-preloader__face {
    position: absolute;
    inset: 9.5%;
    border-radius: 50%;
    overflow: hidden;
    background:
        radial-gradient(circle at 50% 38%, #f4ecd9 0%, #e4d4b6 52%, #cfb98e 100%);
    box-shadow:
        0 0 0 1px rgba(184, 154, 94, 0.28),
        0 10px 28px rgba(0, 0, 0, 0.32);
    opacity: 0;
    transform: scale(0.96);
    transition:
        opacity var(--sish-pl-reveal) var(--sish-pl-ease),
        transform var(--sish-pl-reveal) var(--sish-pl-ease);
    transition-delay: 0s;
}

.sish-preloader.is-armed .sish-preloader__face {
    opacity: 1;
    transform: scale(1);
    transition-delay: 0.1s;
}

.sish-preloader__face img {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 195%;
    max-width: none;
    height: auto;
    /* Cutout leans left in hero.png — shift so the face sits centered */
    transform: translate(-38%, -44%);
    display: block;
    pointer-events: none;
    user-select: none;
}

.sish-preloader__ring {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
    overflow: visible;
}

.sish-preloader__ring-track {
    fill: none;
    stroke: var(--sish-pl-gold-muted);
    stroke-width: 0.6;
    opacity: 0;
    transition: opacity 0.7s var(--sish-pl-ease);
    transition-delay: 0s;
}

.sish-preloader.is-armed .sish-preloader__ring-track {
    opacity: 1;
    transition-delay: 0.28s;
}

.sish-preloader__ring-draw {
    fill: none;
    stroke: var(--sish-pl-gold);
    stroke-width: 1.15;
    stroke-linecap: round;
    stroke-dasharray: 292;
    stroke-dashoffset: 292;
}

.sish-preloader.is-armed .sish-preloader__ring-draw {
    animation: sish-pl-draw-ring 1.15s var(--sish-pl-ease) 0.32s both;
}

.sish-preloader__calligraphy {
    width: min(78vw, 21.5rem);
    opacity: 0;
    transform: translate3d(0, 0.55rem, 0);
    transition:
        opacity 1.1s var(--sish-pl-ease),
        transform 1.1s var(--sish-pl-ease);
    transition-delay: 0s;
}

.sish-preloader.is-armed .sish-preloader__calligraphy {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition-delay: 0.55s;
}

.sish-preloader__calligraphy img {
    width: 100%;
    height: auto;
    display: block;
    opacity: 0.92;
    pointer-events: none;
    user-select: none;
}

.sish-preloader__mark {
    margin: clamp(0.9rem, 2.5vw, 1.15rem) 0 0;
    max-width: min(94vw, 26rem);
    color: var(--sish-pl-ivory-soft);
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(0.52rem, 1.45vw, 0.64rem);
    font-weight: 400;
    letter-spacing: 0.12em;
    text-indent: 0.12em;
    text-transform: uppercase;
    white-space: nowrap;
    opacity: 0;
    transform: translate3d(0, 0.35rem, 0);
    transition:
        opacity 1s var(--sish-pl-ease),
        transform 1s var(--sish-pl-ease),
        letter-spacing 1s var(--sish-pl-ease),
        text-indent 1s var(--sish-pl-ease);
    transition-delay: 0s;
}

.sish-preloader.is-armed .sish-preloader__mark {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    letter-spacing: 0.18em;
    text-indent: 0.18em;
    transition-delay: 0.85s;
}

@keyframes sish-pl-draw-ring {
    from { stroke-dashoffset: 292; }
    to { stroke-dashoffset: 0; }
}

@keyframes sish-pl-glow-breathe {
    0%, 100% { opacity: 0.65; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.85; transform: translate(-50%, -50%) scale(1.03); }
}

@media (max-width: 575.98px) {
    :root {
        --sish-pl-seal: clamp(6.5rem, 36vw, 8.25rem);
    }

    .sish-preloader__glow {
        width: min(88vw, 18rem);
        height: min(88vw, 18rem);
    }

    .sish-preloader__calligraphy {
        width: min(86vw, 17.5rem);
    }
}

@media (max-height: 480px) and (orientation: landscape) {
    .sish-preloader__stage {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.75rem 1.5rem;
        width: min(100%, 36rem);
    }

    .sish-preloader__seal {
        margin-bottom: 0;
        --sish-pl-seal: clamp(5.5rem, 22vh, 7rem);
        width: var(--sish-pl-seal);
        height: var(--sish-pl-seal);
    }

    .sish-preloader__calligraphy {
        width: min(42vw, 16rem);
    }

    .sish-preloader__mark {
        width: 100%;
        margin-top: 0.25rem;
        white-space: normal;
        letter-spacing: 0.12em;
        text-indent: 0;
    }

    .sish-preloader.is-armed .sish-preloader__glow {
        opacity: 0.35;
    }
}

@media (prefers-reduced-motion: reduce) {
    .sish-preloader,
    .sish-preloader__stage,
    .sish-preloader__atmosphere,
    .sish-preloader__glow,
    .sish-preloader__face,
    .sish-preloader__ring-track,
    .sish-preloader__calligraphy,
    .sish-preloader__mark {
        transition-duration: 0.35s !important;
        transition-delay: 0s !important;
    }

    .sish-preloader__ring-draw {
        animation: none !important;
        stroke-dashoffset: 0;
        transition: opacity 0.35s ease;
        opacity: 0;
    }

    .sish-preloader.is-armed .sish-preloader__ring-draw {
        opacity: 1;
    }

    .sish-preloader.is-armed .sish-preloader__glow {
        animation: none !important;
    }

    .sish-preloader.is-armed .sish-preloader__mark {
        letter-spacing: 0.18em;
        text-indent: 0.18em;
    }

    .sish-preloader.is-exiting {
        transform: none;
    }

    .sish-preloader.is-exiting .sish-preloader__stage {
        transform: none;
    }
}