/* ========================================
   İŞ BİRLİKLERİ SECTION
   Gallery4 Pattern — Video Carousel
   Dark Tema, Full Responsive
   ======================================== */

/* ===== SECTION WRAPPER ===== */
.isbirlikleri-section {
    padding: 100px 0 80px;
    position: relative;
    background: #ffffff;
    /* overflow hidden KALDIRILDI — carousel container dışına taşacak */
}

/* ===== SECTION HEADER — container içinde ===== */
.isbirlikleri-header-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 56px;
    gap: 24px;
}

.isbirlikleri-header-left {
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex: 1;
    max-width: 600px;
}

.isbirlikleri-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 16px;
    background: rgba(233, 30, 99, 0.08);
    border: 1px solid rgba(233, 30, 99, 0.20);
    color: #E91E63;
    font-size: 13px;
    font-weight: 600;
    border-radius: 50px;
    width: fit-content;
    letter-spacing: 0.3px;
}

.isbirlikleri-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -1.5px;
    color: #111827;
    margin: 0;
}

.isbirlikleri-title .highlight {
    background: linear-gradient(135deg, #E91E63 0%, #C2185B 50%, #9C27B0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.isbirlikleri-subtitle {
    font-size: 16px;
    line-height: 1.7;
    color: #6b7280;
    max-width: 520px;
    margin: 0;
}

/* ===== NAV BUTTONS — sağda, alt hizalı ===== */
.isbirlikleri-nav-buttons {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
    align-items: flex-end;
    padding-bottom: 4px;
}

.isbirlikleri-nav-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1.5px solid #e5e7eb;
    background: #ffffff;
    color: #374151;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.22s ease;
    font-size: 14px;
    padding: 0;
    line-height: 1;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.isbirlikleri-nav-btn:hover:not(:disabled) {
    background: #E91E63;
    border-color: #E91E63;
    color: #fff;
    box-shadow: 0 4px 12px rgba(233,30,99,0.25);
}

.isbirlikleri-nav-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    box-shadow: none;
}

/* ===== CAROUSEL TRACK ===== */
.isbirlikleri-carousel-outer {
    width: 100%;
    overflow: hidden;
    position: relative;
}

/*
 * Carousel track container ile hizalanır.
 * Bootstrap .container max-width: 1400px, auto margin.
 * padding-left = (viewport - 1400px) / 2 + container-padding (24px)
 * min: 24px (küçük ekranlar için)
 */
.isbirlikleri-carousel-track {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-top: 8px;
    padding-bottom: 16px;
    padding-left: max(24px, calc((100vw - 1400px) / 2 + 24px));
    padding-right: 40px;
}

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

/* ===== CARD — 9:16 dikey format (TikTok/Reels stili) ===== */
.isbirlikleri-card {
    flex-shrink: 0;
    /* Genişlik sabit, yükseklik aspect-ratio ile otomatik hesaplanır */
    width: 220px;
    cursor: pointer;
    border-radius: 20px;
    overflow: hidden;
    display: block;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.isbirlikleri-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 48px rgba(0,0,0,0.15);
}

@media (min-width: 768px) {
    .isbirlikleri-card { width: 240px; }
}

@media (min-width: 1200px) {
    .isbirlikleri-card { width: 260px; }
}

.isbirlikleri-card-inner {
    position: relative;
    width: 100%;
    /* 9:16 dikey oran — video formatı */
    aspect-ratio: 9 / 16;
    border-radius: 20px;
    overflow: hidden;
    background: #1a1a1c;
}

.isbirlikleri-card-video,
.isbirlikleri-card-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: #1a1a1c;
}

/* Görsel yüklenemezse card-inner kendi fallback rengini gösterir */
.isbirlikleri-card-inner.img-error {
    background: linear-gradient(135deg, #1a0a12 0%, #2a0a1a 100%);
}

.isbirlikleri-card:hover .isbirlikleri-card-video,
.isbirlikleri-card:hover .isbirlikleri-card-image {
    transform: scale(1.05);
}

.isbirlikleri-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0) 0%,
        rgba(0, 0, 0, 0.25) 45%,
        rgba(0, 0, 0, 0.80) 75%,
        rgba(0, 0, 0, 0.92) 100%
    );
    z-index: 1;
}

/* ===== PLAY BUTTON ===== */
.isbirlikleri-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 18px;
    opacity: 0;
    transition: opacity 0.25s ease, transform 0.25s ease;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    pointer-events: none;
    z-index: 3;
    padding-left: 3px;
}

.isbirlikleri-card:hover .isbirlikleri-play-btn {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.08);
}

/* ===== CARD CONTENT ===== */
.isbirlikleri-card-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px 28px 28px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    color: #ffffff;
}

.isbirlikleri-card-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: #E91E63;
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    border-radius: 50px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.isbirlikleri-card-title {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.3;
    color: #ffffff;
    margin: 0 0 8px 0;
    text-shadow: 0 2px 8px rgba(0,0,0,0.9), 0 1px 3px rgba(0,0,0,0.8);
}

.isbirlikleri-card-desc {
    font-size: 13px;
    line-height: 1.6;
    color: #ffffff;
    margin: 0 0 16px 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-shadow: 0 2px 8px rgba(0,0,0,0.9), 0 1px 3px rgba(0,0,0,0.8);
}

.isbirlikleri-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: #ffffff;
    text-decoration: none;
    transition: gap 0.2s ease;
    text-shadow: 0 1px 4px rgba(0,0,0,0.8);
}

.isbirlikleri-card-link i {
    font-size: 12px;
    transition: transform 0.2s ease;
}

.isbirlikleri-card:hover .isbirlikleri-card-link i {
    transform: translateX(4px);
}

/* ===== DOTS ===== */
.isbirlikleri-dots {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 40px;
}

.isbirlikleri-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #e5e7eb;
    border: none;
    padding: 0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.isbirlikleri-dot.active {
    background: #E91E63;
    width: 24px;
    border-radius: 4px;
}

.isbirlikleri-dot:hover:not(.active) {
    background: #d1d5db;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1400px) {
    .isbirlikleri-carousel-track { padding-left: 24px; }
}

@media (max-width: 1024px) {
    .isbirlikleri-section { padding: 80px 0 60px; }
    .isbirlikleri-title { font-size: 36px; letter-spacing: -1px; }
    .isbirlikleri-carousel-track { padding-left: 24px; gap: 16px; }
    .isbirlikleri-card { width: 210px; }
}

@media (max-width: 768px) {
    .isbirlikleri-section { padding: 60px 0 48px; }
    .isbirlikleri-header-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        margin-bottom: 28px;
    }
    .isbirlikleri-header-left { max-width: 100%; }
    .isbirlikleri-title { font-size: 28px; letter-spacing: -0.5px; }
    .isbirlikleri-subtitle { font-size: 14px; }
    .isbirlikleri-nav-buttons { align-items: center; padding-bottom: 0; }
    .isbirlikleri-carousel-track { padding-left: 20px; padding-right: 20px; gap: 12px; }
    /* 9:16 dikey kartlar mobilden zaten dikey — genişliği küçült */
    .isbirlikleri-card { width: 180px; }
    .isbirlikleri-card-inner { border-radius: 16px; }
    .isbirlikleri-card-content { padding: 16px 16px 20px; }
    .isbirlikleri-card-title { font-size: 15px; }
    .isbirlikleri-card-desc { display: none; }
    .isbirlikleri-dots { margin-top: 24px; }
}

@media (max-width: 480px) {
    .isbirlikleri-section { padding: 50px 0 40px; }
    .isbirlikleri-carousel-track { padding-left: 16px; padding-right: 16px; gap: 10px; }
    .isbirlikleri-card { width: 160px; }
    .isbirlikleri-nav-buttons { display: none; }
    .isbirlikleri-card-category { font-size: 10px; padding: 3px 9px; }
    .isbirlikleri-card-title { font-size: 13px; }
}