/* ================================================================== */
/* Hero Slideshow – Swiper + Construction-themed Transitions           */
/* ================================================================== */

/* Container fills entire hero area */
.hero-slider {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}
/* ECE Gallery edit trigger – sits above content layer, only rendered in edit mode */
.hero-gallery-edit-trigger {
    position: absolute;
    top: 80px;
    right: 24px;
    width: 44px;
    height: 44px;
    z-index: 20;
}
.hero-slider .swiper {
    width: 100%;
    height: 100%;
}
.hero-slider .swiper-slide {
    overflow: hidden;
    position: relative;
}

/* ─── Image base ─────────────────────────────────────────────────── */
.hero-slider .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(0.7) brightness(0.5) contrast(1.1);
    transform: scale(1);
    transition: none;
}

/* ─── Ken Burns – current slide slowly zooms & pans ──────────────── */
.hero-slider .swiper-slide-active img {
    animation: kenBurns 9s ease-out forwards;
}

@keyframes kenBurns {
    0% {
        transform: scale(1) translate(0, 0);
    }
    100% {
        transform: scale(1.18) translate(-1.5%, -1%);
    }
}

/* Alternate slides: pan opposite direction */
.hero-slider .swiper-slide-active:nth-child(even) img {
    animation: kenBurnsAlt 9s ease-out forwards;
}

@keyframes kenBurnsAlt {
    0% {
        transform: scale(1) translate(0, 0);
    }
    100% {
        transform: scale(1.18) translate(1.5%, 1%);
    }
}

/* Third variation: slow zoom from center */
.hero-slider .swiper-slide-active:nth-child(3n) img {
    animation: kenBurnsCenter 9s ease-out forwards;
}

@keyframes kenBurnsCenter {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.22);
    }
}

/* ─── Blueprint Transition Overlay ───────────────────────────────── */
/* Flashes a blueprint grid + diagonal measuring line during slide change */
.hero-transition-overlay {
    position: absolute;
    inset: 0;
    z-index: 3;
    pointer-events: none;
    opacity: 0;
}

.hero-transition-overlay.is-flashing {
    animation: blueprintFlash 1.4s ease-out forwards;
}

@keyframes blueprintFlash {
    0% {
        opacity: 0;
        background:
            linear-gradient(135deg, transparent 47%, rgba(30, 64, 175, 0.15) 48%, rgba(30, 64, 175, 0.15) 52%, transparent 53%),
            repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(30, 64, 175, 0.06) 40px),
            repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(30, 64, 175, 0.06) 40px);
    }
    15% {
        opacity: 1;
    }
    50% {
        opacity: 0.4;
    }
    100% {
        opacity: 0;
    }
}

/* ─── Diagonal line sweep during transition ──────────────────────── */
.hero-transition-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 4px;
    height: 141.4%; /* Diagonal length */
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(30, 64, 175, 0.5) 30%,
        rgba(180, 83, 9, 0.6) 50%,
        rgba(30, 64, 175, 0.5) 70%,
        transparent 100%
    );
    transform: rotate(45deg);
    transform-origin: top left;
}

.hero-transition-overlay.is-flashing::before {
    animation: diagonalSweep 1.2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes diagonalSweep {
    0% {
        left: -20%;
        opacity: 0;
    }
    20% {
        opacity: 1;
    }
    100% {
        left: 120%;
        opacity: 0;
    }
}

/* ─── Measuring marks on transition (construction ruler feel) ────── */
.hero-transition-overlay::after {
    content: '';
    position: absolute;
    bottom: 60px;
    left: 0;
    right: 0;
    height: 2px;
    background: repeating-linear-gradient(
        90deg,
        transparent 0px,
        transparent 48px,
        rgba(30, 64, 175, 0.3) 48px,
        rgba(30, 64, 175, 0.3) 50px
    );
    opacity: 0;
}

.hero-transition-overlay.is-flashing::after {
    animation: rulerFade 1s ease-out 0.2s forwards;
}

@keyframes rulerFade {
    0% { opacity: 0; transform: scaleX(0); transform-origin: left; }
    30% { opacity: 1; transform: scaleX(1); }
    100% { opacity: 0; transform: scaleX(1); }
}

/* ─── Overlay gradient on top of images ──────────────────────────── */
.hero-slider-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(
        to right,
        var(--color-background, #f5f5f5) 0%,
        color-mix(in srgb, var(--color-background, #f5f5f5) 85%, transparent) 40%,
        color-mix(in srgb, var(--color-background, #f5f5f5) 40%, transparent) 70%,
        transparent 100%
    );
    pointer-events: none;
}

/* ─── Progress bar at bottom of hero ─────────────────────────────── */
.hero-slider-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: rgba(255,255,255,0.15);
    z-index: 20;
}
.hero-slider-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-primary, #1d4ed8), var(--color-tertiary, #b45309));
    transition: none;
}
.hero-slider-progress-bar.is-running {
    animation: progressFill 7s linear forwards;
    /* JS overrides animation-duration via el.style.animationDuration */
}
@keyframes progressFill {
    0%   { width: 0%; }
    100% { width: 100%; }
}

/* ─── Pagination dots ─────────────────────────────────────────────── */
.hero-slider .swiper-pagination {
    bottom: 20px !important;
    z-index: 20;
    text-align: left;
    padding-left: 2rem;
}
.hero-slider .swiper-pagination-bullet {
    width: 28px;
    height: 3px;
    border-radius: 2px;
    background: rgba(255,255,255,0.35);
    opacity: 1;
    transition: all 0.4s ease;
}
.hero-slider .swiper-pagination-bullet-active {
    background: var(--color-primary, #1d4ed8);
    width: 48px;
}

/* ─── Slide counter (01 / 03 style) ──────────────────────────────── */
.hero-slide-counter {
    position: absolute;
    bottom: 24px;
    right: 2rem;
    z-index: 20;
    display: flex;
    align-items: baseline;
    gap: 2px;
    font-family: 'Be Vietnam Pro', sans-serif;
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.03em;
}
.hero-slide-counter .current {
    font-size: 2rem;
    color: var(--color-primary, #1d4ed8);
}
.hero-slide-counter .sep {
    font-size: 0.9rem;
    color: rgba(0,0,0,0.25);
    margin: 0 4px;
}
.hero-slide-counter .total {
    font-size: 0.9rem;
    color: rgba(0,0,0,0.35);
}

/* ─── Responsive adjustments ─────────────────────────────────────── */
@media (max-width: 1024px) {
    .hero-slide-counter {
        display: none;
    }
    .hero-slider .swiper-pagination {
        text-align: center;
        padding-left: 0;
    }
}