/* ============================================================
   PORTFOLIO PAGE STYLES
   ============================================================ */


/* ============================================================
   1. PORTFOLIO SECTION
   ============================================================ */
.portfolio-section {
    background-color: var(--color-white);
    padding: var(--space-2xl) 0;
}


/* ============================================================
   2. CATEGORY FILTER
   ============================================================ */
.portfolio-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 22px;
    font-family: var(--font-body);
    font-size: var(--fs-sm);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-dark);
    background-color: transparent;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    outline: none;
}

.filter-btn:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.filter-btn.active {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 6px 18px rgba(184, 137, 43, 0.25);
}

.filter-btn:focus,
.filter-btn:focus-visible {
    outline: none;
}


/* ============================================================
   3. PORTFOLIO GRID
   ============================================================ */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.portfolio-item {
    position: relative;
    opacity: 1;
    transform: scale(1);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

/* Hide state (JS filter) */
.portfolio-item.is-hidden {
    display: none;
}

/* Filter transition (fade out) */
.portfolio-item.is-fading {
    opacity: 0;
    transform: scale(0.92);
}


/* ============================================================
   4. PORTFOLIO MEDIA CARD
   ============================================================ */
.portfolio-media {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 5;
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: var(--color-dark);
    cursor: pointer;
}

.portfolio-image {
    position: absolute;
    inset: 0;
    background-color: var(--color-dark-2);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transition: transform 0.8s ease;
    will-change: transform;
}

.portfolio-item:hover .portfolio-image {
    transform: scale(1.08);
}

/* Dark gradient overlay (always visible, dims image) */
.portfolio-media::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(0, 0, 0, 0.75) 0%,
        rgba(0, 0, 0, 0.25) 45%,
        rgba(0, 0, 0, 0.05) 100%
    );
    z-index: 2;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.portfolio-item:hover .portfolio-media::before {
    opacity: 0.95;
}


/* ============================================================
   5. PORTFOLIO SLIDER (Multiple Images)
   ============================================================ */
.portfolio-slider {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.slider-track {
    position: relative;
    width: 100%;
    height: 100%;
}

.slider-track .slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.slider-track .slide.active {
    opacity: 1;
    pointer-events: auto;
}

.slider-track .slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.8s ease;
}

.portfolio-item:hover .slider-track .slide.active img {
    transform: scale(1.08);
}

/* Arrows */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--color-dark);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.25s ease;
    z-index: 5;
    padding: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.portfolio-item:hover .slider-arrow {
    opacity: 1;
}

.slider-arrow:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-50%) scale(1.1);
}

.slider-prev { left: 12px; }
.slider-next { right: 12px; }

/* Dots */
.slider-dots {
    position: absolute;
    bottom: 90px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
    z-index: 5;
    padding: 6px 10px;
    background-color: rgba(0, 0, 0, 0.4);
    border-radius: 20px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.slider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: all 0.3s ease;
}

.slider-dot.active {
    background-color: var(--color-primary);
    width: 20px;
    border-radius: 4px;
}

.slider-dot:hover {
    background-color: rgba(255, 255, 255, 0.9);
}

/* Counter badge (top-right) */
.slider-counter {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 4px 10px;
    background-color: rgba(0, 0, 0, 0.55);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.05em;
    border-radius: 20px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 5;
}

.slider-counter .current {
    color: var(--color-primary);
}


/* ============================================================
   6. OVERLAY CONTENT (Category, Title, Meta, Arrow)
   ============================================================ */
.portfolio-overlay {
    position: absolute;
    inset: 0;
    z-index: 3;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--space-md);
    color: var(--color-white);
    transition: all var(--transition-base);
    pointer-events: none;
}

.portfolio-overlay > * {
    pointer-events: auto;
}

.portfolio-cat {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 8px;
    transform: translateY(0);
    transition: transform var(--transition-base);
}

.portfolio-title {
    font-family: var(--font-heading);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.25;
    margin-bottom: 10px;
    transform: translateY(0);
    transition: transform var(--transition-base);
}

.portfolio-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: var(--fs-xs);
    color: rgba(255, 255, 255, 0.75);
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-base);
}

.portfolio-meta span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
}

.portfolio-meta svg {
    flex-shrink: 0;
    opacity: 0.8;
}

/* Hover reveal */
.portfolio-item:hover .portfolio-meta {
    opacity: 1;
    max-height: 40px;
    margin-top: 4px;
}

/* Arrow link (top-right) */
.portfolio-link {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateY(-8px) scale(0.85);
    opacity: 0;
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 6;
}

.portfolio-item:hover .portfolio-link {
    transform: translateY(0) scale(1);
    opacity: 1;
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.portfolio-link:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
    transform: scale(1.08) !important;
}

.portfolio-link svg {
    width: 18px;
    height: 18px;
}


/* ============================================================
   7. EMPTY STATE
   ============================================================ */
.portfolio-empty {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
}

.portfolio-empty p {
    font-size: var(--fs-md);
    color: var(--color-gray);
}

.portfolio-empty.hidden {
    display: none;
}


/* ============================================================
   8. RESPONSIVE
   ============================================================ */

/* Tablet Landscape - 992px */
@media (max-width: 992px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-filter {
        gap: 8px;
    }

    .filter-btn {
        padding: 9px 18px;
        font-size: var(--fs-xs);
    }

    /* Slider adjustments */
    .slider-arrow {
        width: 32px;
        height: 32px;
        opacity: 1;
    }

    .slider-dots {
        bottom: 80px;
    }
}

/* Tablet Portrait - 768px */
@media (max-width: 768px) {
    .portfolio-filter {
        justify-content: flex-start;
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 12px;
        margin-bottom: var(--space-lg);
        -ms-overflow-style: none;
        scrollbar-width: none;
    }

    .portfolio-filter::-webkit-scrollbar {
        display: none;
    }

    .filter-btn {
        flex-shrink: 0;
    }

    .portfolio-overlay {
        padding: var(--space-sm);
    }

    .portfolio-title {
        font-size: var(--fs-md);
    }

    .portfolio-link {
        width: 38px;
        height: 38px;
        top: var(--space-sm);
        right: var(--space-sm);
    }

    .portfolio-link svg {
        width: 16px;
        height: 16px;
    }

    /* Slider mobile */
    .slider-prev { left: 8px; }
    .slider-next { right: 8px; }

    .slider-dots {
        bottom: 70px;
        gap: 5px;
        padding: 5px 8px;
    }

    .slider-dot {
        width: 6px;
        height: 6px;
    }

    .slider-dot.active {
        width: 16px;
    }

    .slider-counter {
        top: 8px;
        right: 8px;
        font-size: 10px;
        padding: 3px 8px;
    }
}

/* Mobile - 576px */
@media (max-width: 576px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .portfolio-media {
        aspect-ratio: 3 / 4;
    }

    .portfolio-meta {
        opacity: 1;
        max-height: 40px;
        margin-top: 4px;
    }

    .portfolio-link {
        opacity: 1;
        transform: translateY(0) scale(1);
    }

    /* Slider mobile - always show arrows */
    .slider-arrow {
        opacity: 1;
    }

    .slider-dots {
        bottom: 60px;
    }
}

/* Small Mobile - 400px */
@media (max-width: 400px) {
    .portfolio-title {
        font-size: var(--fs-base);
    }

    .filter-btn {
        padding: 8px 14px;
        font-size: 10px;
    }

    .portfolio-media {
        aspect-ratio: 1 / 1;
    }
}