/* ============================================
   PREMIUM GALLERY CARDS - SHARED STYLES
   For both Project and Experience detail pages
   ============================================ */

/* Gallery Section Base */
.gallery-section {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

.gallery-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
}

.gallery-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Gallery Container */
.gallery-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 450px;
    perspective: 1500px;
    padding: 2rem;
    position: relative;
}

/* Card Stack */
.card-stack {
    position: relative;
    width: 380px;
    height: 280px;
    cursor: pointer;
    transform-style: preserve-3d;
    pointer-events: auto;
    z-index: 10;
}

/* Individual Cards */
.gallery-card {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 16px;
    overflow: hidden;
    box-shadow:
        0 10px 40px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
    transform-origin: center bottom;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    backface-visibility: hidden;
}

.gallery-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

/* Card Overlay */
.gallery-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom,
            transparent 50%,
            rgba(0, 0, 0, 0.8) 100%);
    z-index: 1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* Card Label */
.gallery-card .card-label {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    right: 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
    z-index: 2;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

/* Card Number Badge */
.gallery-card .card-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 32px;
    height: 32px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 700;
    color: white;
    z-index: 2;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.3s ease;
}

/* ============================================
   STACKED STATE (Default) - Varied Positions
   ============================================ */

/* Type A - Classic Fan */
.card-stack[data-layout="fan"] .gallery-card:nth-child(1) {
    transform: rotate(-12deg) translateX(-30px) translateY(5px);
    z-index: 5;
}

.card-stack[data-layout="fan"] .gallery-card:nth-child(2) {
    transform: rotate(-6deg) translateX(-15px) translateY(2px);
    z-index: 4;
}

.card-stack[data-layout="fan"] .gallery-card:nth-child(3) {
    transform: rotate(0deg);
    z-index: 6;
}

.card-stack[data-layout="fan"] .gallery-card:nth-child(4) {
    transform: rotate(6deg) translateX(15px) translateY(2px);
    z-index: 4;
}

.card-stack[data-layout="fan"] .gallery-card:nth-child(5) {
    transform: rotate(12deg) translateX(30px) translateY(5px);
    z-index: 3;
}

.card-stack[data-layout="fan"] .gallery-card:nth-child(6) {
    transform: rotate(18deg) translateX(45px) translateY(10px);
    z-index: 2;
}

/* Type B - Cascade Stack */
.card-stack[data-layout="cascade"] .gallery-card:nth-child(1) {
    transform: translateX(-40px) translateY(-10px) rotate(-3deg);
    z-index: 6;
}

.card-stack[data-layout="cascade"] .gallery-card:nth-child(2) {
    transform: translateX(-24px) translateY(-6px) rotate(-1.5deg);
    z-index: 5;
}

.card-stack[data-layout="cascade"] .gallery-card:nth-child(3) {
    transform: translateX(-8px) translateY(-2px);
    z-index: 4;
}

.card-stack[data-layout="cascade"] .gallery-card:nth-child(4) {
    transform: translateX(8px) translateY(2px);
    z-index: 3;
}

.card-stack[data-layout="cascade"] .gallery-card:nth-child(5) {
    transform: translateX(24px) translateY(6px) rotate(1.5deg);
    z-index: 2;
}

.card-stack[data-layout="cascade"] .gallery-card:nth-child(6) {
    transform: translateX(40px) translateY(10px) rotate(3deg);
    z-index: 1;
}

/* Type C - Deck */
.card-stack[data-layout="deck"] .gallery-card:nth-child(1) {
    transform: rotate(-2deg) translateY(0);
    z-index: 6;
}

.card-stack[data-layout="deck"] .gallery-card:nth-child(2) {
    transform: rotate(1deg) translateY(-4px) translateX(4px);
    z-index: 5;
}

.card-stack[data-layout="deck"] .gallery-card:nth-child(3) {
    transform: rotate(-1deg) translateY(-8px) translateX(-2px);
    z-index: 4;
}

.card-stack[data-layout="deck"] .gallery-card:nth-child(4) {
    transform: rotate(2deg) translateY(-12px) translateX(6px);
    z-index: 3;
}

.card-stack[data-layout="deck"] .gallery-card:nth-child(5) {
    transform: rotate(-1.5deg) translateY(-16px) translateX(-4px);
    z-index: 2;
}

.card-stack[data-layout="deck"] .gallery-card:nth-child(6) {
    transform: rotate(1.5deg) translateY(-20px) translateX(2px);
    z-index: 1;
}

/* Type D - Arc */
.card-stack[data-layout="arc"] .gallery-card:nth-child(1) {
    transform: rotate(-16deg) translateX(-80px) translateY(40px);
    z-index: 1;
}

.card-stack[data-layout="arc"] .gallery-card:nth-child(2) {
    transform: rotate(-8deg) translateX(-40px) translateY(10px);
    z-index: 2;
}

.card-stack[data-layout="arc"] .gallery-card:nth-child(3) {
    transform: rotate(0deg) translateY(0);
    z-index: 6;
}

.card-stack[data-layout="arc"] .gallery-card:nth-child(4) {
    transform: rotate(8deg) translateX(40px) translateY(10px);
    z-index: 2;
}

.card-stack[data-layout="arc"] .gallery-card:nth-child(5) {
    transform: rotate(16deg) translateX(80px) translateY(40px);
    z-index: 1;
}

.card-stack[data-layout="arc"] .gallery-card:nth-child(6) {
    transform: rotate(24deg) translateX(120px) translateY(80px);
    z-index: 0;
}

/* ============================================
   NO HOVER MOVEMENT - Cards stay fixed
   Only click toggles spread/stacked state
   ============================================ */

/* ============================================
   SPREAD STATE - Cards Fully Open on Click
   ============================================ */
.card-stack.spread .gallery-card {
    cursor: pointer;
}

.card-stack.spread .gallery-card:nth-child(1) {
    transform: rotate(-20deg) translateX(-220px) translateY(-30px);
    z-index: 1;
}

.card-stack.spread .gallery-card:nth-child(2) {
    transform: rotate(-12deg) translateX(-130px) translateY(-50px);
    z-index: 2;
}

.card-stack.spread .gallery-card:nth-child(3) {
    transform: rotate(-4deg) translateX(-40px) translateY(-60px);
    z-index: 3;
}

.card-stack.spread .gallery-card:nth-child(4) {
    transform: rotate(4deg) translateX(40px) translateY(-60px);
    z-index: 3;
}

.card-stack.spread .gallery-card:nth-child(5) {
    transform: rotate(12deg) translateX(130px) translateY(-50px);
    z-index: 2;
}

.card-stack.spread .gallery-card:nth-child(6) {
    transform: rotate(20deg) translateX(220px) translateY(-30px);
    z-index: 1;
}

/* Show labels and numbers when spread */
.card-stack.spread .gallery-card::before {
    opacity: 1;
}

.card-stack.spread .gallery-card .card-label {
    opacity: 1;
    transform: translateY(0);
}

.card-stack.spread .gallery-card .card-number {
    opacity: 1;
    transform: scale(1);
}

/* Individual card hover when spread */
.card-stack.spread .gallery-card:hover {
    transform: scale(1.05) translateY(-80px) !important;
    z-index: 20 !important;
    box-shadow:
        0 30px 60px rgba(0, 0, 0, 0.5),
        0 0 50px var(--accent-glow);
    border-color: var(--accent-primary);
}

.card-stack.spread .gallery-card:hover img {
    transform: scale(1.1);
}

/* ============================================
   LIGHTBOX - Full Screen Image View
   ============================================ */
.gallery-lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    cursor: zoom-out;
}

.gallery-lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    transform: scale(0.9);
    transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.gallery-lightbox.active .lightbox-content {
    transform: scale(1);
}

.lightbox-image {
    max-width: 100%;
    max-height: 85vh;
    border-radius: 12px;
    box-shadow: 0 30px 100px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
    position: absolute;
    bottom: -50px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10001;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

.lightbox-counter {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

/* ============================================
   GALLERY INSTRUCTIONS
   ============================================ */
.gallery-instructions {
    text-align: center;
    margin-top: 2rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

.gallery-instruction {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.gallery-instruction i {
    color: var(--accent-primary);
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */
@media (max-width: 1200px) {
    .card-stack {
        width: 320px;
        height: 240px;
    }

    .card-stack.spread .gallery-card:nth-child(1) {
        transform: rotate(-18deg) translateX(-180px) translateY(-25px);
    }

    .card-stack.spread .gallery-card:nth-child(2) {
        transform: rotate(-10deg) translateX(-100px) translateY(-40px);
    }

    .card-stack.spread .gallery-card:nth-child(3) {
        transform: rotate(-3deg) translateX(-30px) translateY(-50px);
    }

    .card-stack.spread .gallery-card:nth-child(4) {
        transform: rotate(3deg) translateX(30px) translateY(-50px);
    }

    .card-stack.spread .gallery-card:nth-child(5) {
        transform: rotate(10deg) translateX(100px) translateY(-40px);
    }

    .card-stack.spread .gallery-card:nth-child(6) {
        transform: rotate(18deg) translateX(180px) translateY(-25px);
    }
}

@media (max-width: 992px) {
    .gallery-container {
        min-height: 400px;
    }

    .card-stack {
        width: 280px;
        height: 200px;
    }

    .card-stack.spread .gallery-card:nth-child(1) {
        transform: rotate(-15deg) translateX(-140px) translateY(-20px);
    }

    .card-stack.spread .gallery-card:nth-child(2) {
        transform: rotate(-8deg) translateX(-70px) translateY(-35px);
    }

    .card-stack.spread .gallery-card:nth-child(3) {
        transform: rotate(0deg) translateY(-45px);
    }

    .card-stack.spread .gallery-card:nth-child(4) {
        transform: rotate(8deg) translateX(70px) translateY(-35px);
    }

    .card-stack.spread .gallery-card:nth-child(5) {
        transform: rotate(15deg) translateX(140px) translateY(-20px);
    }

    .card-stack.spread .gallery-card:nth-child(6) {
        display: none;
    }
}

@media (max-width: 768px) {
    .gallery-section {
        padding: 3rem 0;
    }

    .gallery-container {
        min-height: 350px;
        padding: 1rem;
    }

    .card-stack {
        width: 240px;
        height: 170px;
    }

    /* Tighter stacking on mobile */
    .card-stack .gallery-card:nth-child(1) {
        transform: rotate(-6deg) translateX(-15px);
    }

    .card-stack .gallery-card:nth-child(2) {
        transform: rotate(-3deg) translateX(-8px);
    }

    .card-stack .gallery-card:nth-child(4) {
        transform: rotate(3deg) translateX(8px);
    }

    .card-stack .gallery-card:nth-child(5) {
        transform: rotate(6deg) translateX(15px);
    }

    .card-stack .gallery-card:nth-child(6) {
        display: none;
    }

    .card-stack.spread .gallery-card:nth-child(1) {
        transform: rotate(-12deg) translateX(-90px) translateY(-15px);
    }

    .card-stack.spread .gallery-card:nth-child(2) {
        transform: rotate(-6deg) translateX(-45px) translateY(-25px);
    }

    .card-stack.spread .gallery-card:nth-child(3) {
        transform: rotate(0deg) translateY(-35px);
    }

    .card-stack.spread .gallery-card:nth-child(4) {
        transform: rotate(6deg) translateX(45px) translateY(-25px);
    }

    .card-stack.spread .gallery-card:nth-child(5) {
        transform: rotate(12deg) translateX(90px) translateY(-15px);
    }

    .gallery-instructions {
        flex-direction: column;
        gap: 0.75rem;
    }

    .lightbox-nav {
        width: 40px;
        height: 40px;
    }

    .lightbox-prev {
        left: 10px;
    }

    .lightbox-next {
        right: 10px;
    }
}

@media (max-width: 480px) {
    .card-stack {
        width: 200px;
        height: 140px;
    }

    .card-stack.spread .gallery-card:nth-child(1) {
        transform: rotate(-10deg) translateX(-60px) translateY(-10px);
    }

    .card-stack.spread .gallery-card:nth-child(2) {
        transform: rotate(-5deg) translateX(-30px) translateY(-20px);
    }

    .card-stack.spread .gallery-card:nth-child(3) {
        transform: rotate(0deg) translateY(-30px);
    }

    .card-stack.spread .gallery-card:nth-child(4) {
        transform: rotate(5deg) translateX(30px) translateY(-20px);
    }

    .card-stack.spread .gallery-card:nth-child(5) {
        transform: rotate(10deg) translateX(60px) translateY(-10px);
    }
}