/* ========================================================
   DOĞU KİLİT - ISO BELGELERİ & KALİTE YÖNETİM SİSTEMİ STİLLERİ
   ======================================================== */

.dk-iso-page {
    background-color: #f8fafc;
    color: #0f172a;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    padding-bottom: 80px;
}

/* Hero Başlık Alanı */
.dk-iso-hero {
    background: linear-gradient(135deg, #0b132b 0%, #1e293b 60%, #0f172a 100%);
    color: #ffffff;
    padding: 56px 0 64px;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.dk-iso-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(2, 132, 199, 0.18) 0%, rgba(2, 132, 199, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
}

.dk-iso-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.12) 0%, rgba(245, 158, 11, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
}

.dk-iso-hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

.dk-iso-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    font-size: 0.88rem;
    color: #94a3b8;
    margin-bottom: 24px;
}

.dk-iso-breadcrumb a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.2s ease;
}

.dk-iso-breadcrumb a:hover {
    color: #38bdf8;
}

.dk-iso-breadcrumb .separator {
    color: #64748b;
    font-size: 0.75rem;
}

.dk-iso-breadcrumb .active-crumb {
    color: #38bdf8;
    font-weight: 600;
}

.dk-iso-badge-top {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(2, 132, 199, 0.16);
    border: 1px solid rgba(56, 189, 248, 0.35);
    color: #7dd3fc;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    padding: 6px 14px;
    border-radius: 50px;
    margin-bottom: 18px;
}

.dk-iso-hero h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2rem, 3.8vw, 3.2rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: #ffffff;
    line-height: 1.2;
    margin-bottom: 18px;
}

.dk-iso-hero p.dk-iso-lead {
    font-size: 1.12rem;
    line-height: 1.75;
    color: #cbd5e1;
    max-width: 820px;
    margin-bottom: 0;
}

/* Ana Sayfa İçeriği & Grid */
.dk-iso-container {
    max-width: 1200px;
    margin: -36px auto 0;
    padding: 0 24px;
    position: relative;
    z-index: 5;
}

.dk-iso-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
    margin-bottom: 48px;
}

/* Belge Kartı */
.dk-iso-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
    display: flex;
    flex-direction: column;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.dk-iso-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
    border-color: #cbd5e1;
}

/* Önizleme Alanı */
.dk-iso-preview-wrapper {
    position: relative;
    background: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);
    padding: 32px 24px 28px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-bottom: 1px solid #e2e8f0;
    cursor: pointer;
    overflow: hidden;
}

.dk-iso-preview-wrapper::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(11, 19, 43, 0.45);
    opacity: 0;
    transition: opacity 0.25s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dk-iso-preview-wrapper .preview-overlay-btn {
    position: absolute;
    z-index: 3;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: #ffffff;
    color: #0b132b;
    padding: 10px 18px;
    border-radius: 50px;
    font-size: 0.88rem;
    font-weight: 700;
    opacity: 0;
    transition: all 0.25s ease;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    pointer-events: none;
}

.dk-iso-preview-wrapper:hover::after {
    opacity: 1;
}

.dk-iso-preview-wrapper:hover .preview-overlay-btn {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.dk-iso-preview-img {
    height: 310px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.18);
    transition: transform 0.3s ease;
}

.dk-iso-preview-wrapper:hover .dk-iso-preview-img {
    transform: scale(1.02);
}

/* Kart Gövdesi */
.dk-iso-body {
    padding: 32px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.dk-iso-tag-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.dk-iso-standard-pill {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.45rem;
    font-weight: 800;
    color: #0b132b;
    letter-spacing: -0.02em;
}

.dk-iso-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dk-iso-badge.badge-blue {
    background: #e0f2fe;
    color: #0369a1;
}

.dk-iso-badge.badge-green {
    background: #dcfce7;
    color: #15803d;
}

.dk-iso-badge.badge-amber {
    background: #fef3c7;
    color: #b45309;
}

.dk-iso-card-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 8px;
    line-height: 1.35;
}

.dk-iso-subtitle {
    font-size: 0.88rem;
    color: #64748b;
    font-weight: 500;
    margin-bottom: 16px;
    line-height: 1.5;
}

.dk-iso-desc {
    font-size: 0.93rem;
    color: #475569;
    line-height: 1.65;
    margin-bottom: 22px;
}

/* Belge Meta Detayları (dl-dt-dd) */
.dk-iso-meta {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 10px 16px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 16px 18px;
    margin-bottom: 20px;
    font-size: 0.87rem;
}

.dk-iso-meta dt {
    font-weight: 500;
    color: #64748b;
    margin: 0;
}

.dk-iso-meta dd {
    font-weight: 700;
    color: #0f172a;
    margin: 0;
    text-align: right;
    overflow-wrap: anywhere;
}

.dk-iso-meta dd.cert-number {
    font-family: 'Consolas', 'Courier New', monospace;
    color: #0284c7;
    font-weight: 700;
}

.dk-iso-note-box {
    background: #fffbeb;
    border-left: 3px solid #f59e0b;
    color: #92400e;
    padding: 12px 14px;
    border-radius: 6px;
    font-size: 0.82rem;
    line-height: 1.55;
    margin-bottom: 24px;
}

/* Butonlar */
.dk-iso-actions {
    display: flex;
    gap: 12px;
    margin-top: auto;
    padding-top: 10px;
    flex-wrap: wrap;
}

.dk-btn-iso-primary {
    flex: 1;
    min-width: 140px;
    background: #0284c7;
    color: #ffffff !important;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.88rem;
    font-weight: 700;
    padding: 12px 18px;
    border-radius: 8px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.2);
}

.dk-btn-iso-primary:hover {
    background: #0369a1;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(2, 132, 199, 0.3);
}

.dk-btn-iso-outline {
    flex: 1;
    min-width: 140px;
    background: #ffffff;
    color: #1e293b !important;
    border: 1px solid #cbd5e1;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.88rem;
    font-weight: 700;
    padding: 12px 18px;
    border-radius: 8px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.dk-btn-iso-outline:hover {
    background: #f1f5f9;
    border-color: #94a3b8;
    color: #0b132b !important;
}

/* Kapsam & Akreditasyon Bilgi Bölümü */
.dk-iso-info-section {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    padding: 36px 40px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
    margin-bottom: 40px;
}

.dk-iso-info-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.dk-iso-info-icon {
    width: 48px;
    height: 48px;
    background: rgba(2, 132, 199, 0.1);
    color: #0284c7;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.dk-iso-info-section h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.45rem;
    font-weight: 700;
    color: #0b132b;
    margin: 0;
}

.dk-iso-info-section p {
    font-size: 0.95rem;
    line-height: 1.8;
    color: #475569;
    margin-bottom: 16px;
}

.dk-iso-info-section p:last-of-type {
    margin-bottom: 24px;
}

.dk-iso-nav-pills {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    padding-top: 18px;
    border-top: 1px solid #f1f5f9;
}

.dk-iso-nav-pills a {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    color: #334155;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 9px 16px;
    border-radius: 8px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.dk-iso-nav-pills a:hover {
    background: #0284c7;
    border-color: #0284c7;
    color: #ffffff;
}

/* ========================================================
   DİĞER SAYFALAR İÇİN BİLEŞEN: dk-iso-links & dk-iso-showcase
   ======================================================== */
.dk-iso-links-section {
    background: linear-gradient(145deg, #0b132b 0%, #1e293b 100%);
    color: #ffffff;
    border-radius: 18px;
    padding: 38px 42px;
    margin: 48px auto;
    max-width: 1200px;
    box-shadow: 0 15px 35px rgba(11, 19, 43, 0.15);
    position: relative;
    overflow: hidden;
}

.dk-iso-links-section::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -10%;
    width: 380px;
    height: 380px;
    background: radial-gradient(circle, rgba(2, 132, 199, 0.22) 0%, rgba(2, 132, 199, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
}

.dk-iso-links-content {
    position: relative;
    z-index: 2;
}

.dk-iso-links-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 24px;
}

.dk-iso-links-header h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.55rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
}

.dk-iso-links-header p {
    color: #94a3b8;
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 720px;
    margin-bottom: 0;
}

.dk-iso-cards-mini {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.dk-iso-mini-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    padding: 18px 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.dk-iso-mini-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(56, 189, 248, 0.4);
    transform: translateY(-2px);
}

.dk-iso-mini-card .info-area {
    display: flex;
    align-items: center;
    gap: 14px;
}

.dk-iso-mini-card .doc-icon {
    width: 44px;
    height: 44px;
    background: rgba(2, 132, 199, 0.2);
    color: #38bdf8;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.dk-iso-mini-card .doc-title {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    color: #ffffff;
    margin-bottom: 2px;
}

.dk-iso-mini-card .doc-meta {
    font-size: 0.8rem;
    color: #94a3b8;
}

.dk-iso-mini-card .btn-download {
    background: #0284c7;
    color: #ffffff !important;
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 0.82rem;
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background 0.2s ease;
    white-space: nowrap;
}

.dk-iso-mini-card .btn-download:hover {
    background: #0369a1;
}

/* Modal Lightbox */
.dk-cert-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(11, 19, 43, 0.88);
    backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.dk-cert-modal.active {
    display: flex;
    opacity: 1;
}

.dk-cert-modal-dialog {
    background: #ffffff;
    border-radius: 16px;
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
    animation: modalPop 0.25s ease-out;
}

@keyframes modalPop {
    from { transform: scale(0.92); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.dk-cert-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid #e2e8f0;
    background: #f8fafc;
}

.dk-cert-modal-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: #0b132b;
    margin: 0;
}

.dk-cert-modal-close {
    background: transparent;
    border: none;
    color: #64748b;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    padding: 4px;
    transition: color 0.2s ease;
}

.dk-cert-modal-close:hover {
    color: #0b132b;
}

.dk-cert-modal-body {
    padding: 24px;
    overflow-y: auto;
    text-align: center;
    background: #f1f5f9;
}

.dk-cert-modal-body img {
    max-width: 100%;
    max-height: 70vh;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.dk-cert-modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    padding: 14px 24px;
    border-top: 1px solid #e2e8f0;
    background: #ffffff;
}

/* Mobil & Tablet Uyumluluk */
@media (max-width: 1199px) {
    .dk-iso-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 24px;
    }
    .dk-iso-cards-mini {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 820px) {
    .dk-iso-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .dk-iso-cards-mini {
        grid-template-columns: 1fr;
    }
    .dk-iso-preview-img {
        height: 260px;
    }
    .dk-iso-info-section {
        padding: 28px 24px;
    }
    .dk-iso-links-section {
        padding: 30px 24px;
    }
}

@media (max-width: 576px) {
    .dk-iso-body {
        padding: 24px 18px;
    }
    .dk-iso-meta {
        grid-template-columns: 1fr;
        gap: 6px;
    }
    .dk-iso-meta dd {
        text-align: left;
    }
    .dk-iso-actions {
        flex-direction: column;
    }
    .dk-btn-iso-primary,
    .dk-btn-iso-outline {
        width: 100%;
    }
    .dk-iso-mini-card {
        flex-direction: column;
        align-items: flex-start;
    }
    .dk-iso-mini-card .btn-download {
        width: 100%;
        justify-content: center;
    }
}