/* ===================== ÜRÜN SAYFASI STİLLERİ ===================== */

.breadcrumb {
    display: inline-block;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--on-dark-muted);
    text-decoration: none;
    margin-bottom: 32px;
    letter-spacing: 0.04em;
    transition: color 0.2s;
}
.breadcrumb:hover { color: var(--blue-bright); }

.product-hero {
    background: var(--navy);
    padding: 40px 0 80px;
    position: relative;
    overflow: hidden;
}

.product-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(75,175,225,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(75,175,225,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.product-hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    position: relative;
    z-index: 1;
}

/* Galeri */
.product-gallery { display: flex; flex-direction: column; gap: 12px; }

.main-img-wrap {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 20px;
}

.thumb-row {
    display: flex;
    gap: 10px;
}

.thumb-row img {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 6px;
    cursor: pointer;
    border: 2px solid transparent;
    opacity: 0.6;
    transition: opacity 0.2s, border-color 0.2s;
}

.thumb-row img:hover { opacity: 0.9; }
.thumb-row img.active { border-color: var(--blue-bright); opacity: 1; }

/* Ürün Bilgi */
.product-intro h1 {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: clamp(2.4rem, 5vw, 3.8rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.product-lead {
    font-size: var(--fs-body);
    color: var(--on-dark-muted);
    line-height: var(--lh-body);
    margin-bottom: 28px;
}

/* Key Stats */
.key-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: rgba(197,206,217,0.14);
    border: 1px solid rgba(197,206,217,0.18);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 32px;
}

.ks-item {
    background: rgba(255,255,255,0.04);
    padding: 14px 12px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ks-val {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}

.ks-label {
    font-size: 0.7rem;
    color: var(--on-dark-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

/* Feature List */
.features-title {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--on-dark-subtle);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.feature-list {
    list-style: none;
    margin-bottom: 32px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feature-list li {
    font-size: 0.95rem;
    color: var(--on-dark-muted);
    padding-left: 18px;
    position: relative;
    line-height: 1.5;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--blue-bright);
}

/* ===================== SPECS SECTION ===================== */
.specs-section {
    padding: var(--section-y) 0;
    scroll-margin-top: 64px;
    background: var(--white);
}

.specs-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 32px; }

.specs-title {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--navy);
    letter-spacing: -0.01em;
}

.specs-download { text-decoration: none; display: inline-flex; align-items: center; gap: 8px; padding: 9px 16px; background: var(--white); color: var(--navy); border: 1px solid rgba(25,55,95,0.2); border-radius: 8px; font-family: 'Barlow', sans-serif; font-size: 0.875rem; font-weight: 700; cursor: pointer; transition: background 0.2s, color 0.2s, border-color 0.2s; }
.specs-download:hover { background: var(--navy); border-color: var(--navy); color: var(--white); }

.specs-table-wrap {
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.specs-table tr {
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
}

.specs-table tr:last-child { border-bottom: none; }
.specs-table tr:hover { background: #f8fafc; }

.specs-table td {
    padding: 13px 20px;
    vertical-align: top;
    line-height: 1.5;
}

.specs-table td:first-child {
    width: 40%;
    color: var(--text-muted);
    font-weight: 500;
    border-right: 1px solid var(--border);
    background: #fafbfc;
}

.specs-table td:last-child {
    color: var(--text);
    font-weight: 400;
}

/* ===================== ÜRÜN AÇIKLAMA & FAQ SEKSİYONU ===================== */
.product-description-section {
    padding: 80px 0;
    background: var(--white);
    border-top: 1px solid var(--border);
}

.product-description {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-bottom: 64px;
}

.product-description p {
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.8;
}

.product-faq {
    margin-top: 16px;
}

.product-faq h2 {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    color: var(--navy);
    letter-spacing: -0.01em;
    margin-bottom: 32px;
}

.faq-item {
    border-top: 1px solid var(--border);
    padding: 28px 0;
}

.faq-item:last-child {
    border-bottom: 1px solid var(--border);
}

.faq-item h3 {
    margin: 0;
    font-size: 0;
    line-height: 0;
}

.faq-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    text-align: left;
    gap: 16px;
}

.faq-toggle-text {
    font-family: 'Barlow', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy);
    line-height: 1.4;
    flex: 1;
}

.faq-icon {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--off-white);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.25s;
}

.faq-icon::before,
.faq-icon::after {
    content: '';
    position: absolute;
    background: var(--navy);
    border-radius: 2px;
    transition: transform 0.25s, opacity 0.2s;
}

.faq-icon::before { width: 10px; height: 1.5px; }
.faq-icon::after  { width: 1.5px; height: 10px; }

.faq-icon { position: relative; }

.faq-toggle[aria-expanded="true"] .faq-icon { background: var(--navy); }
.faq-toggle[aria-expanded="true"] .faq-icon::before,
.faq-toggle[aria-expanded="true"] .faq-icon::after { background: var(--white); }
.faq-toggle[aria-expanded="true"] .faq-icon::after  { transform: rotate(90deg); opacity: 0; }

.faq-answer {
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.3s ease, padding 0.2s;
    padding-top: 0;
}

.faq-answer.open {
    max-height: 400px;
    padding-top: 14px;
}

.faq-answer p {
    font-size: 0.92rem;
    color: var(--text);
    line-height: 1.8;
    max-width: 820px;
    margin: 0;
}

/* ===================== ÜRÜN NAVİGASYON ===================== */
.product-nav-section {
    padding: 24px 0;
    background: var(--off-white);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.product-nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.pnav-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    flex-shrink: 0;
}

.pnav-links {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.pnav-links a {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--blue);
    text-decoration: none;
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--white);
    transition: background 0.15s, border-color 0.15s;
}

.pnav-links a:hover {
    background: #e8f3ff;
    border-color: var(--blue);
}

.pnav-current {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--white);
    padding: 6px 14px;
    border-radius: 6px;
    background: var(--navy);
}

/* ===================== VERSİYON TAB ===================== */
.version-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 24px;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    max-width: 600px;
}

.vtab {
    flex: 1;
    padding: 12px 16px;
    border: none;
    border-right: 1px solid var(--border);
    background: var(--off-white);
    font-family: 'Barlow', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    text-align: center;
}

.vtab:last-child { border-right: none; }

.vtab.active {
    background: var(--navy);
    color: var(--white);
}

.vtab:hover:not(.active) { background: var(--border); color: var(--navy); }

.version-content { display: none; }
.version-content.active { display: block; }

.version-model {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--blue);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
    padding: 8px 12px;
    background: #f0f7ff;
    border-radius: 6px;
    display: inline-block;
}

/* ===================== MOBİL ===================== */
@media (max-width: 768px) {
    .product-hero-grid { grid-template-columns: 1fr; gap: 32px; }
    .key-stats { grid-template-columns: repeat(2, 1fr); }
    .specs-table td:first-child { width: 45%; }
    .product-nav { flex-direction: column; align-items: flex-start; }
    .product-description { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 480px) {
    .specs-table td { padding: 10px 12px; font-size: 0.82rem; }
    .key-stats { grid-template-columns: repeat(2, 1fr); }
    .product-description-section { padding: 48px 0; }
    .faq-item { padding: 20px 0; }
}

/* Ürün sayfası eylem butonları */
.product-actions { display: flex; flex-wrap: wrap; gap: 12px; }
@media (max-width: 600px) {
    .product-actions { flex-direction: column; align-items: stretch; }
}

/* ===================== TEKNİK VERİ SAYFASI (YAZDIR / PDF) ===================== */
.print-header { display: none; }

@media print {
    @page { size: A4; margin: 14mm 14mm 16mm; }
    html, body { background: #fff !important; }
    body { color: #111; font-size: 10.5pt; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
    *, *::before, *::after { animation: none !important; transition: none !important; box-shadow: none !important; text-shadow: none !important; }
    .container { max-width: none; padding: 0; }

    /* Ekrana özel öğeler gizlenir */
    header, .breadcrumb, .thumb-row, .product-actions, .version-tabs, .specs-download,
    .product-faq, .product-description-section, .product-nav-section, footer, .scroll-top, .loader, .modal { display: none !important; }

    /* Marka başlığı */
    .print-header { display: flex; align-items: center; gap: 12px; padding-bottom: 10px; margin-bottom: 14px; border-bottom: 2px solid #19375F; }
    .print-header img { width: 40px; height: 40px; }
    .print-brand { display: flex; flex-direction: column; line-height: 1.2; }
    .print-brand strong { font-family: 'Barlow Condensed', sans-serif; font-size: 16pt; letter-spacing: 0.04em; color: #19375F; }
    .print-brand strong span { color: #2f8fc4; font-weight: 600; }
    .print-brand em { font-style: normal; font-size: 9pt; letter-spacing: 0.12em; text-transform: uppercase; color: #555; }
    .print-contact { margin-left: auto; text-align: right; font-size: 8.5pt; color: #333; line-height: 1.5; }

    /* Ürün özeti: koyu zemin yerine beyaz kâğıt */
    .product-hero { background: #fff !important; padding: 0 0 8px; }
    .product-hero::before { display: none; }
    .product-hero-grid { grid-template-columns: 0.8fr 1.2fr; gap: 24px; align-items: center; }
    .main-img-wrap { background: #f4f6f9 !important; border: 1px solid #dde3ea; aspect-ratio: 4/3; }
    .product-intro h1 { color: #19375F; font-size: 26pt; margin-bottom: 6px; }
    .product-lead, .feature-list li { color: #222 !important; }
    .product-lead { font-size: 10pt; margin-bottom: 12px; }
    .modal-band-tag { border: 1px solid #b9d7f0; }
    .key-stats { background: #dde3ea !important; border-color: #dde3ea; margin-bottom: 12px; }
    .ks-item { background: #f4f6f9 !important; padding: 8px 6px; }
    .ks-val { color: #19375F; font-size: 13pt; }
    .ks-label { color: #444 !important; font-size: 7pt; }
    .features-title { color: #19375F !important; font-size: 10pt; margin-bottom: 6px; }
    .feature-list { gap: 3px; margin-bottom: 0; }
    .feature-list li { font-size: 9.5pt; }
    .feature-list li::before { background: #2f8fc4; }

    /* Teknik tablolar: iki versiyon da basılır */
    .specs-section { padding: 10px 0 0; }
    .specs-head { margin-bottom: 8px; }
    .specs-title { font-size: 15pt; }
    .version-content { display: block !important; margin-bottom: 12px; }
    .version-content + .version-content { margin-top: 14px; }
    .version-model { margin-bottom: 6px; break-after: avoid; }
    .specs-table-wrap { border-color: #c9d1db; border-radius: 0; }
    .specs-table { font-size: 9pt; }
    .specs-table td { padding: 5px 10px; }
    .specs-table tr { break-inside: avoid; }
    .specs-table td:first-child { background: #f4f6f9 !important; color: #333; }

}