/* ==========================================================
   LOADING SCREEN
   Two modes:
     • Cold load  — bars start full, counter + guides, contract
     • Transition — bars grow over departing page, navigate away
   Guide lines grow in sync with loading percentage.
   ========================================================== */

/* Lock scroll while loader active */
html.is-loading { overflow: hidden; }

/* --- Overlay --- */
.loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    overflow: hidden;
}

/* --- Bars --- */
.loader-bars {
    position: absolute;
    inset: 0;
    display: flex;
    z-index: 1;
}

.loader-bar {
    flex: 1;
    background: var(--color-black);
    outline: 1px solid var(--color-black);
    transform: scaleY(0);
    transform-origin: bottom;
    will-change: transform;
}

/* Cold load: bars start already covering the viewport */
.loader--cold .loader-bar {
    transform: scaleY(1);
}

/* --- Dashed guide frame --- */
.loader-guides {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
}

.loader-guide--top,
.loader-guide--bottom {
    position: absolute;
    left: 0;
    right: 0;
    height: 0;
    border-top: var(--guide-border);
    transition: opacity 0.3s ease;
}
.loader-guide--top    { top: 4%;    transform-origin: left;  transform: scaleX(0); }
.loader-guide--bottom { bottom: 4%; transform-origin: right; transform: scaleX(0); }

.loader-guide--left,
.loader-guide--right {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 0;
    border-left: var(--guide-border);
    transition: opacity 0.3s ease;
}
.loader-guide--left  { left: 4%;  transform-origin: top;    transform: scaleY(0); }
.loader-guide--right { right: 4%; transform-origin: bottom; transform: scaleY(0); }

.loader-guide--center-h {
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 0;
    border-top: var(--guide-border);
    transform-origin: center;
    transform: scaleX(0);
    transition: opacity 0.3s ease;
}

.loader-guide--center-v {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 0;
    border-left: var(--guide-border);
    transform-origin: center;
    transform: scaleY(0);
    transition: opacity 0.3s ease;
}

/* --- Number counter --- */
.loader-counter {
    position: absolute;
    z-index: 3;
    bottom: calc(4% + 80px);
    left: calc(4% + 80px);
    display: flex;
    align-items: flex-end;
    opacity: 0;
    font-family: var(--font-heading);
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
    font-size: var(--text-3xl);
    letter-spacing: var(--tracking-tight);
    line-height: 1;
    transition: opacity 0.3s ease;
}
.loader-counter.is-visible { opacity: 1; }

.loader-digit {
    display: inline-block;
    height: 1em;
    overflow: hidden;
    width: 0.62em;
}

.loader-digit-inner {
    display: flex;
    flex-direction: column;
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: transform;
}

.loader-digit-inner span {
    display: block;
    height: 1em;
    line-height: 1;
    text-align: center;
}

.loader-percent {
    display: inline-block;
    height: 1em;
    line-height: 1;
}

/* --- Random tagline (top-right) --- */
.loader-tagline {
    position: absolute;
    z-index: 3;
    top: calc(4% + 80px);
    right: calc(4% + 80px);
    opacity: 0;
    font-family: var(--font-heading);
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
    font-size: var(--text-2xl);
    letter-spacing: var(--tracking-tight);
    line-height: var(--leading-tight);
    text-align: right;
    max-width: 40%;
    transition: opacity 0.3s ease;
}
.loader-tagline.is-visible { opacity: 1; }

/* --- Tablet --- */
@media (max-width: 1023px) {
    .loader-counter {
        bottom: calc(4% + 40px);
        left: calc(4% + 40px);
    }
    .loader-tagline {
        top: calc(4% + 40px);
        right: calc(4% + 40px);
    }
}

/* --- Mobile: 6 bars, no vertical center line --- */
@media (max-width: 767px) {
    .loader-guide--center-v { display: none; }
    .loader-bar:nth-child(n + 7) { display: none; }
    .loader-bar { flex: 0 0 calc(100% / 6); }
    .loader-counter {
        font-size: var(--text-2xl);
        bottom: calc(4% + 20px);
        left: calc(4% + 20px);
    }
    .loader-tagline {
        font-size: var(--text-lg);
        top: calc(4% + 20px);
        right: calc(4% + 20px);
        max-width: 60%;
    }
}