/* ==============================================================================
   ESFANDIAR KIANI — PHOTOGRAPHY PAGE STYLESHEET
   TRANSPARENT CAROUSELS | ZERO-BOX CLEAN DESIGN | DESKTOP ARROWS | NATIVE TRACKPAD/TOUCH
   ============================================================================== */

.esk-photo-page-header {
    margin-bottom: 2.5rem;
    padding-top: 1rem;
}

.esk-photo-kicker {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--esk-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.esk-photo-main-title {
    font-size: clamp(1.85rem, 3.4vw, 2.6rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.025em;
    margin-bottom: 0.85rem;
}

.esk-photo-lead {
    font-size: clamp(0.95rem, 1.25vw, 1.08rem);
    color: var(--esk-text-muted);
    line-height: 1.65;
    max-width: 820px;
}

.esk-photo-collections {
    display: flex;
    flex-direction: column;
    gap: 3.5rem;
    margin-bottom: 4rem;
}

/* Category Wrapper: 100% Transparent, No Box Container */
.esk-photo-category {
    display: flex;
    flex-direction: column;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0.35rem 0 !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    overflow: visible !important;
}

.esk-photo-cat-head {
    margin-bottom: 1.15rem;
    padding: 0.2rem 0.25rem;
    overflow: visible;
}

.esk-photo-cat-title {
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    line-height: 1.35;
    margin-bottom: 0.35rem;
    overflow: visible;
}

.esk-photo-cat-desc {
    color: var(--esk-text-muted);
    font-size: 0.92rem;
    line-height: 1.6;
    margin: 0;
    max-width: 720px;
}

/* Carousel Wrapper: Transparent, Centered, Arrows Safely Contained Inside Viewport */
.esk-carousel-wrapper {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    box-sizing: border-box;
}

/* Desktop Arrow Controls on Sides — Fully Visible, No Clipping */
.esk-carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.9);
    color: var(--esk-text);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transition: transform 0.2s cubic-bezier(0.2, 0.8, 0.2, 1), background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

:root:not([data-theme="light"]) .esk-carousel-arrow {
    background: rgba(15, 23, 42, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.55);
}

.esk-carousel-arrow svg {
    width: 20px;
    height: 20px;
    pointer-events: none;
}

.esk-carousel-arrow.prev {
    left: 8px;
}

.esk-carousel-arrow.next {
    right: 8px;
}

.esk-carousel-arrow:hover {
    transform: translateY(-50%) scale(1.1);
    background: var(--esk-primary);
    color: #ffffff;
    border-color: var(--esk-primary);
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.35);
}

.esk-carousel-arrow:active {
    transform: translateY(-50%) scale(0.95);
}

/* Carousel Track: Transparent, Native Trackpad/Touch Smooth Scrolling */
.esk-carousel-track {
    display: flex;
    gap: 1.5rem;
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: auto; /* Required for continuous auto-scroll */
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: none; /* Allows silky-smooth continuous auto-scroll */
    touch-action: pan-y;
    padding: 0.75rem 3.25rem 1.25rem;
    scrollbar-width: none;
    -ms-overflow-style: none;
    overscroll-behavior-x: contain;
}

.esk-carousel-track::-webkit-scrollbar {
    display: none;
}

/* Photo Slide Item — Snaps to START of carousel */
.esk-photo-slide {
    flex-shrink: 0;
    scroll-snap-align: start;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.esk-photo-slide img {
    height: 340px;
    width: auto;
    max-width: 82vw;
    object-fit: cover;
    border-radius: 16px;
    cursor: pointer;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
    transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.25s ease;
    will-change: transform;
}

.esk-photo-slide img:hover {
    transform: scale(1.015);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.28);
}

/* Mobile: Pure Touch Swipe, Zero Buttons, Smooth Vertical Scroll */
@media (max-width: 768px) {
    .esk-carousel-arrow {
        display: none !important;
    }
    .esk-photo-slide img {
        height: 290px;
        max-width: 86vw;
        border-radius: 14px;
    }
    .esk-photo-collections {
        gap: 2.75rem;
    }
    .esk-carousel-track {
        gap: 1rem;
        padding-bottom: 0.75rem;
    }
}

/* 500px Showcase Banner (Translucent Glassmorphism) */
.esk-photo-external-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 2.25rem;
    background: var(--esk-card-bg);
    border: 1px solid var(--esk-card-border);
    border-radius: var(--esk-radius);
    box-shadow: var(--esk-card-shadow);
    margin-bottom: 2.5rem;
    backdrop-filter: blur(12px) saturate(125%);
    -webkit-backdrop-filter: blur(12px) saturate(125%);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.esk-photo-external-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
}

:root:not([data-theme="light"]) .esk-photo-external-card:hover {
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
}

.esk-photo-ext-content {
    flex: 1;
    min-width: 280px;
}

.esk-photo-ext-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.28rem 0.7rem;
    border-radius: 9999px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    background: rgba(124, 58, 237, 0.12);
    color: var(--esk-primary);
    border: 1px solid rgba(124, 58, 237, 0.25);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
}

.esk-photo-ext-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--esk-primary);
    box-shadow: 0 0 6px var(--esk-primary);
}

.esk-photo-ext-title {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 0.45rem;
    letter-spacing: -0.015em;
}

.esk-photo-ext-desc {
    font-size: 0.95rem;
    color: var(--esk-text-muted);
    line-height: 1.6;
    margin-bottom: 1rem;
    max-width: 680px;
}

.esk-photo-ext-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.esk-photo-tag {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--esk-text-muted);
    background: rgba(0, 0, 0, 0.04);
    padding: 0.25rem 0.65rem;
    border-radius: 8px;
    border: 1px solid var(--esk-border);
}

:root:not([data-theme="light"]) .esk-photo-tag {
    background: rgba(255, 255, 255, 0.05);
}

.esk-photo-ext-action {
    flex-shrink: 0;
}

.esk-500px-btn {
    display: inline-block;
    text-decoration: none;
    background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 50%, #06b6d4 100%);
    padding: 2px;
    border-radius: 14px;
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.32);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.esk-500px-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 10px 28px rgba(124, 58, 237, 0.45);
    text-decoration: none;
}

.esk-500px-btn-inner {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.85rem 1.5rem;
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.3);
    backdrop-filter: blur(8px);
    color: #ffffff;
    font-size: 0.95rem;
    font-weight: 700;
}

.esk-500px-icon {
    width: 18px;
    height: 18px;
}

.esk-500px-arrow {
    font-size: 1.1rem;
    transition: transform 0.2s ease;
}

.esk-500px-btn:hover .esk-500px-arrow {
    transform: translate(2px, -2px);
}

@media (max-width: 768px) {
    .esk-photo-external-card {
        flex-direction: column;
        align-items: stretch;
        padding: 1.5rem;
        gap: 1.25rem;
    }
    .esk-500px-btn {
        width: 100%;
        text-align: center;
    }
    .esk-500px-btn-inner {
        justify-content: center;
    }
}

/* ==============================================================================
   FULLSCREEN FROSTED GLASS LIGHTBOX
   ============================================================================== */
.esk-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 100000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.esk-lightbox.active {
    opacity: 1;
    pointer-events: auto;
}

.esk-lightbox-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(6, 10, 18, 0.78);
    backdrop-filter: blur(24px) saturate(140%);
    -webkit-backdrop-filter: blur(24px) saturate(140%);
}

:root[data-theme="light"] .esk-lightbox-backdrop {
    background: rgba(240, 244, 250, 0.82);
}

.esk-lightbox-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 90vw;
    max-width: 1100px;
    height: 90vh;
}

.esk-lightbox-img-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    flex: 1 1 auto;
    min-height: 0;
    position: relative;
}

.esk-lightbox-img-wrap img {
    max-width: 100%;
    max-height: calc(88vh - 55px);
    height: min(82vh, 760px);
    width: auto;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: transform 0.2s ease;
    display: block;
}

:root[data-theme="light"] .esk-lightbox-img-wrap img {
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.esk-lightbox-caption {
    margin-top: 0.65rem;
    display: inline-flex;
    align-items: center;
    gap: 0.85rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--esk-text);
    background: var(--esk-card-bg);
    padding: 0.35rem 0.95rem;
    border-radius: 9999px;
    border: 1px solid var(--esk-card-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    flex-shrink: 0;
}

.esk-lightbox-counter {
    font-size: 0.8rem;
    color: var(--esk-primary);
}

.esk-lightbox-close {
    position: absolute;
    top: -55px;
    right: 0;
    background: rgba(255, 255, 255, 0.15);
    color: var(--esk-text);
    border: 1px solid var(--esk-border);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    transition: background 0.2s, transform 0.2s;
}

.esk-lightbox-close:hover {
    background: var(--esk-primary);
    color: #ffffff;
    transform: scale(1.1);
}

.esk-lightbox-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--esk-card-bg);
    border: 1px solid var(--esk-card-border);
    color: var(--esk-text);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    z-index: 10;
    transition: background 0.2s, transform 0.2s;
}

.esk-lightbox-arrow.prev { left: -70px; }
.esk-lightbox-arrow.next { right: -70px; }

.esk-lightbox-arrow:hover {
    background: var(--esk-primary);
    color: #ffffff;
    transform: translateY(-50%) scale(1.1);
}

@media (max-width: 860px) {
    .esk-lightbox-arrow.prev { left: 8px; }
    .esk-lightbox-arrow.next { right: 8px; }
    .esk-lightbox-close { top: -45px; right: 0; }
}