/* ==========================================
   PORTFOLIO PAGE — portfolio.css
   styles.css ile tam uyumlu
   ========================================== */

.nav-active {
    color: var(--color-accent) !important;
}

/* ==========================================
   PORTFOLIO HERO
   ========================================== */

.pf-hero {
    padding: 160px 0 80px;
    background: var(--color-black);
    position: relative;
    overflow: hidden;
}

.pf-hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.13) 0%, transparent 70%);
    pointer-events: none;
}

.pf-hero::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 220, 160, 0.07) 0%, transparent 70%);
    pointer-events: none;
}

.pf-hero-content {
    position: relative;
    z-index: 1;
}

.pf-hero-content .section-label {
    color: var(--color-accent);
}

.pf-hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6.5rem);
    font-weight: 700;
    line-height: 1.0;
    letter-spacing: -0.04em;
    color: var(--color-white);
    margin: 1rem 0 1.5rem;
}

.pf-hero-sub {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: #888;
    max-width: 520px;
    line-height: 1.7;
}

/* ==========================================
   TABS — DRAGGABLE STRIP
   ========================================== */

.pf-tabs-wrapper {
    position: sticky;
    top: 65px;
    z-index: 900;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--color-gray-200);
    overflow: hidden;
}

.pf-tabs-track {
    display: flex;
    overflow-x: auto;
    padding: 0 1.5rem;
    cursor: grab;
    user-select: none;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    scroll-behavior: smooth;
}

.pf-tabs-track::-webkit-scrollbar { display: none; }

.pf-tabs-track.dragging {
    cursor: grabbing;
    scroll-behavior: auto;
}

.pf-tab {
    flex-shrink: 0;
    padding: 1.1rem 1.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: var(--color-gray-500);
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.pf-tab:hover { color: var(--color-black); }

.pf-tab.active {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

/* ==========================================
   MAIN PORTFOLIO AREA
   ========================================== */

.pf-main {
    background: #0d0d0d;
    min-height: 70vh;
    padding: 56px 2rem 80px;
}

.pf-inner {
    max-width: 1500px;
    margin: 0 auto;
}

/* Each category block */
.pf-category-block {
    display: none;
    animation: pfFadeIn 0.4s ease forwards;
}

.pf-category-block.active {
    display: block;
}

/* "All" mode — each block stacked */
.pf-category-block.all-visible {
    display: block;
    margin-bottom: 3.5rem;
}

@keyframes pfFadeIn {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Category label shown in "All" mode */
.pf-cat-label {
    display: none;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.all-visible .pf-cat-label {
    display: block;
}

/* ==========================================
   GRID — Desktop: 4 eşit sütun
   ========================================== */

.pf-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

/* Tüm kartlar eşit — span yok */
.pf-card:nth-child(1),
.pf-card:nth-child(4) {
    grid-column: span 1;
}

/* ==========================================
   CARD
   ========================================== */

.pf-card {
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    background: linear-gradient(135deg, #5b6ad0 0%, #8b5fb8 100%);
    
}

.pf-img-wrap {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

/* Tüm kartlar aynı yükseklikte */
.pf-card:nth-child(1) .pf-img-wrap,
.pf-card:nth-child(4) .pf-img-wrap {
    height: 200px;
}

.pf-img-wrap img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
    background: linear-gradient(135deg, #5b6ad0 0%, #8b5fb8 100%);
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.pf-card:hover .pf-img-wrap img {
    transform: scale(1.06);
}

/* Hover overlay */
.pf-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(0, 0, 0, 0.88) 0%,
        rgba(0, 0, 0, 0.2) 45%,
        transparent 100%
    );
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: opacity 0.28s ease;
}

.pf-card:hover .pf-overlay { opacity: 1; }

.pf-overlay span {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #4da3ff;
    background: rgba(0, 102, 255, 0.18);
    border: 1px solid rgba(77, 163, 255, 0.45);
    padding: 0.28rem 0.75rem;
    border-radius: 2rem;
    width: fit-content;
    margin-bottom: 0.5rem;
}

.pf-overlay h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.02em;
}

/* ==========================================
   TABLET (768–1099px) — 2 eşit sütun
   ========================================== */

@media (min-width: 768px) and (max-width: 1099px) {
    .pf-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pf-card:nth-child(1),
    .pf-card:nth-child(4) {
        grid-column: span 1;
    }

    /* Touch: overlay her zaman görünür */
    .pf-overlay { opacity: 1; }
}

/* ==========================================
   MOBILE (<768px) — Yatay sürüklenebilir slider
   ========================================== */

@media (max-width: 767px) {

    .pf-main {
        padding: 36px 0 60px;
    }

    .pf-inner {
        padding: 0;
    }

    /* Grid → yatay flex slider */
    .pf-grid {
        display: flex !important;
        flex-direction: row;
        gap: 0.9rem;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        cursor: grab;
        padding: 0.75rem 1.25rem 1.25rem;
        scrollbar-width: none;
    }

    .pf-grid::-webkit-scrollbar { display: none; }

    .pf-grid.dragging {
        cursor: grabbing;
        scroll-snap-type: none;
    }

    /* Tüm kartlar eşit genişlik */
    .pf-card,
    .pf-card:nth-child(1),
    .pf-card:nth-child(4) {
        grid-column: unset;
        flex: 0 0 78vw;
        max-width: 78vw;
        scroll-snap-align: start;
        
    }

    /* Overlay her zaman görünür */
    .pf-overlay { opacity: 1; }

    .all-visible .pf-cat-label {
        padding-left: 1.25rem;
    }
}

/* Mobil: img-wrap yüksekliği sabit yatay */
@media (max-width: 767px) {
    .pf-img-wrap,
    .pf-card:nth-child(1) .pf-img-wrap,
    .pf-card:nth-child(4) .pf-img-wrap {
        height: 180px;
    }
}