/* ==========================================================================
   EFE BOYAHANE - GODMODE OPTIMIZED MASTER STYLESHEET
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. GLOBAL RESET, FONTLAR & DEĞİŞKENLER
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Renk Paleti (Açık Tema & Endüstriyel Turuncu) */
    --bg-color: #f8fafc;
    --bg-light: #f8fafc;
    --card-bg: #ffffff;
    --primary-color: #ea580c;
    --primary: #f97316;
    --primary-dark: #ea580c;
    --primary-hover: #c2410c;

    /* Tipografi & Koyu Tonlar */
    --text-main: #0f172a;
    --slate-dark: #0f172a;
    --slate-body: #334155;
    --text-muted: #64748b;
    --border-color: #e2e8f0;

    /* Font Ailesi */
    --font-main: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-main);
}

html {
    scroll-behavior: smooth;
    text-rendering: optimizeLegibility;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: #ffffff;
    color: var(--slate-body);
    font-family: var(--font-main);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --------------------------------------------------------------------------
   2. SITE HEADER & NAVİGASYON (HİBRİT UYUM)
   -------------------------------------------------------------------------- */
html,
body {
    overflow-x: hidden;
    width: 100%;
    margin: 0;
    padding: 0;
}

.site-header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    height: 80px;
    background-color: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    box-sizing: border-box;
}

.site-header.scrolled {
    height: 68px;
    background-color: rgba(255, 255, 255, 0.94);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
}

.header-container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
}

.logo-area {
    display: flex;
    flex-direction: column;
}

.logo {
    font-size: 1.55rem;
    font-weight: 800;
    color: var(--slate-dark);
    text-decoration: none;
    letter-spacing: -0.5px;
    transition: font-size 0.35s ease;
}

.logo span,
.logo .dot {
    color: var(--primary-color);
}

.sub-logo {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 0.3px;
    margin-top: -2px;
}

/* Navigasyon Linkleri (Hem main-nav hem nav-menu uyumlu) */
.main-nav .nav-list,
.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 28px;
}

.main-nav a,
.nav-menu a {
    color: #334155;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
    transition: color 0.2s ease;
    padding: 8px 0;
}

.main-nav a:hover,
.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu .nav-cta,
.btn-header-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--primary-color);
    color: #ffffff !important;
    padding: 10px 22px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.25s ease;
    box-shadow: 0 4px 14px rgba(234, 88, 12, 0.25);
    touch-action: manipulation;
}

.nav-menu .nav-cta:hover,
.btn-header-cta:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(234, 88, 12, 0.35);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.back-link-container {
    padding-top: 20px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.back-link:hover {
    color: var(--primary-color);
}

/* --- MOBİL UYUM VE TAŞMA ENGELLEME (EKLENEN KISIM) --- */
@media (max-width: 768px) {
    .site-header {
        height: auto;
        min-height: 70px;
        padding: 10px 0;
    }

    .header-container {
        padding: 0 16px;
        flex-wrap: wrap;
        gap: 12px;
    }

    .main-nav .nav-list,
    .nav-menu {
        gap: 14px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .main-nav a,
    .nav-menu a {
        font-size: 0.85rem;
        padding: 4px 0;
    }

    .nav-menu .nav-cta,
    .btn-header-cta {
        padding: 8px 14px;
        font-size: 0.85rem;
        box-sizing: border-box;
        max-width: 100%;
        text-align: center;
    }
}

/* --------------------------------------------------------------------------
   3. HERO BÖLÜMÜ (ANA SAYFA)
   -------------------------------------------------------------------------- */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 140px 24px 80px 24px;
    overflow: hidden;
}

.video-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.video-background video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg,
            rgba(15, 23, 42, 0.25) 0%,
            rgba(15, 23, 42, 0.15) 50%,
            rgba(15, 23, 42, 0.65) 100%);
}

.hero-container {
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
    text-align: center;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(249, 115, 22, 0.12);
    border: 1px solid rgba(249, 115, 22, 0.3);
    color: var(--primary-color);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background-color: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--primary-color);
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -1px;
    color: #ffffff;
    margin-bottom: 20px;
}

.hero-title span {
    background: linear-gradient(135deg, #f97316 0%, #fb923c 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 1.15rem;
    color: #fefeff;
    font-weight: 500;
    max-width: 780px;
    margin: 0 auto 36px auto;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero-features {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: #cbd5e1;
    font-weight: 500;
}

/* --------------------------------------------------------------------------
   4. GENEL BUTON STİLLERİ
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.25s ease;
    border: none;
    cursor: pointer;
    touch-action: manipulation;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 10px 25px -5px rgba(249, 115, 22, 0.4);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 15px 30px -5px rgba(249, 115, 22, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.btn-whatsapp {
    background: #25d366;
    color: #fff;
}

.btn-whatsapp:hover {
    background: #1eb956;
}

.btn-outline {
    background: #fff;
    border: 1px solid #cbd5e1;
    color: var(--slate-dark);
}

.btn-outline:hover {
    background: #f1f5f9;
}

.btn-full {
    width: 100%;
}

/* --------------------------------------------------------------------------
   5. PDP HERO ZONE (ÜRÜN DETAY ÜST ALANI - 50/50 DÜZEN)
   -------------------------------------------------------------------------- */
.pdp-hero-section {
    padding: 40px 0;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
}

.pdp-hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.main-image-box {
    width: 100%;
    height: 400px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: #fff;
}

.main-image-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.thumb-list {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}

.thumb {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    object-fit: cover;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
}

.thumb.active,
.thumb:hover {
    border-color: var(--primary);
}

.pdp-badge {
    display: inline-block;
    padding: 4px 12px;
    background: #ffedd5;
    color: var(--primary-dark);
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 20px;
    margin-bottom: 10px;
}

.pdp-details h1 {
    font-size: 2rem;
    color: var(--slate-dark);
    margin: 0 0 15px 0;
}

.pdp-details h1 span {
    font-size: 1.2rem;
    color: #64748b;
}

.pdp-short-desc {
    font-size: 1.05rem;
    color: #475569;
}

.pdp-specs-bullets {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.pdp-specs-bullets li {
    padding: 6px 0;
    border-bottom: 1px dashed var(--border-color);
    font-size: 0.95rem;
}

.pdp-cta-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 25px;
}

/* --------------------------------------------------------------------------
   6. FİLTRELER & KART IZGARASI (FILTERS GRID)
   -------------------------------------------------------------------------- */
.filters-section {
    padding: 100px 24px;
    background-color: #f1f5f9;
    position: relative;
    content-visibility: auto;
    contain-intrinsic-size: 800px;
}

.section-container {
    max-width: 1280px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 60px auto;
}

.section-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--slate-dark);
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-title span {
    color: var(--primary-color);
}

.section-description {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.filter-card,
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.filter-card:hover {
    border-color: rgba(234, 88, 12, 0.4);
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.08), 0 0 20px rgba(234, 88, 12, 0.1);
}

/* Kart İç Görsel Kutusu */
.card-image,
.filter-card-image,
.gallery-item {
    width: 100%;
    height: 280px;
    padding: 8px;
    border-radius: 14px;
    overflow: hidden;
    margin: 0 auto 20px auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f1f5f9;
    box-sizing: border-box;
}

.card-image img,
.filter-card img,
.gallery-item img {
    width: auto;
    height: 92%;
    max-height: 92%;
    max-width: 95%;
    object-fit: contain;
    margin: 0 auto;
    display: block;
    transition: transform 0.3s ease;
}

.filter-card:hover .card-image img {
    transform: scale(1.06);
}

.card-badge {
    align-self: flex-start;
    background: rgba(234, 88, 12, 0.08);
    color: var(--primary-color);
    border: 1px solid rgba(234, 88, 12, 0.2);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.card-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--slate-dark);
    margin-bottom: 12px;
    line-height: 1.3;
}

.card-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 24px;
}

.card-specs {
    list-style: none;
    padding: 0;
    margin: 0 0 28px 0;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    margin-top: auto;
}

.card-specs li {
    font-size: 0.85rem;
    color: #334155;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
}

.card-specs li strong {
    color: var(--text-muted);
    font-weight: 500;
}

.card-btn {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 18px;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--slate-dark);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

.filter-card:hover .card-btn {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(234, 88, 12, 0.25);
}

.filter-card .btn-secondary {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin-top: 8px;
    padding: 10px 15px;
    background-color: transparent;
    color: #334155;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

.filter-card .btn-secondary:hover {
    background-color: #f8fafc;
    border-color: #94a3b8;
    color: var(--slate-dark);
}

/* --------------------------------------------------------------------------
   7. CTA BANNER (HIZLI İLETİŞİM BANT ALANI)
   -------------------------------------------------------------------------- */
.cta-banner-section {
    padding: 80px 24px;
    background: linear-gradient(135deg, rgba(234, 88, 12, 0.08) 0%, rgba(248, 250, 252, 0.95) 100%), #f8fafc;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.cta-banner-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.cta-banner-content {
    max-width: 720px;
}

.cta-banner-title {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--slate-dark);
    margin-bottom: 12px;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.cta-banner-title span {
    color: var(--primary-color);
}

.cta-banner-desc {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.cta-banner-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.cta-banner-actions .btn-secondary,
.cta-banner-actions .btn-outline,
.cta-banner-actions a:not(.btn-primary) {
    background-color: transparent !important;
    color: var(--slate-dark) !important;
    border: 2px solid var(--slate-dark) !important;
    font-weight: 700;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.cta-banner-actions .btn-secondary:hover,
.cta-banner-actions .btn-outline:hover,
.cta-banner-actions a:not(.btn-primary):hover {
    background-color: var(--slate-dark) !important;
    color: #ffffff !important;
}

/* --------------------------------------------------------------------------
   8. OTORİTE & NEDEN BİZ BÖLÜMÜ
   -------------------------------------------------------------------------- */
.authority-section {
    padding: 100px 24px;
    background-color: #ffffff;
    position: relative;
    content-visibility: auto;
    contain-intrinsic-size: 600px;
}

.authority-container {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.authority-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.authority-title {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--slate-dark);
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.authority-title span {
    color: var(--primary-color);
}

.authority-text {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 24px;
}

.authority-list {
    list-style: none;
    padding: 0;
    margin: 0 0 32px 0;
}

.authority-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.98rem;
    color: #334155;
    margin-bottom: 14px;
    line-height: 1.5;
}

.authority-list li::before {
    content: "✓";
    color: var(--primary-color);
    font-weight: 800;
    font-size: 1.1rem;
    line-height: 1;
}

.authority-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.authority-card {
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 28px 24px;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.authority-card:hover {
    transform: translateY(-4px);
    border-color: rgba(234, 88, 12, 0.4);
    box-shadow: 0 12px 24px -6px rgba(0, 0, 0, 0.06);
}

.card-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 8px;
}

.card-label {
    font-size: 1rem;
    font-weight: 700;
    color: var(--slate-dark);
    margin-bottom: 6px;
}

.card-subtext {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* --------------------------------------------------------------------------
   9. FİLTRE GALERİSİ (SWIPER / COVERFLOW SLIDER)
   -------------------------------------------------------------------------- */
.photo-gallery-wrapper {
    width: 100%;
    padding: 50px 0;
    background-color: #f4f7fe;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    box-sizing: border-box;
}

.photo-gallery-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.coverflowSlider {
    width: 100%;
    padding-top: 20px;
    padding-bottom: 50px;
    margin: 0 auto;
}

.coverflowSlider .swiper-slide {
    background-position: center;
    background-size: cover;
    width: 320px;
    height: 420px;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
    position: relative;
    cursor: grab;
    transition: opacity 0.3s ease;
}

.coverflowSlider .swiper-slide:not(.swiper-slide-active) {
    opacity: 0.65;
}

.coverflowSlider .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px 16px;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0.1) 70%, transparent 100%);
    color: #ffffff;
    text-align: center;
}

.slide-caption h3 {
    font-size: 1rem;
    margin: 0;
    font-weight: 600;
}

.coverflowSlider .swiper-button-next,
.coverflowSlider .swiper-button-prev {
    width: 48px;
    height: 48px;
    background-color: #ffffff;
    border-radius: 50%;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
    color: #1e293b;
}

.coverflowSlider .swiper-button-next::after,
.coverflowSlider .swiper-button-prev::after {
    font-size: 18px;
    font-weight: bold;
}

.coverflowSlider .swiper-button-next:hover,
.coverflowSlider .swiper-button-prev:hover {
    background-color: #f97316;
    color: #ffffff;
}

/* --------------------------------------------------------------------------
   10. CONTENT HUB, TEKNİK TABLOLAR & HESAPLAMA BÖLÜMÜ
   -------------------------------------------------------------------------- */
.pdp-content-hub {
    padding: 50px 0;
    content-visibility: auto;
    contain-intrinsic-size: 1000px;
}

.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.main-article h2 {
    color: var(--slate-dark);
    margin-top: 35px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
    font-size: 1.6rem;
}

.main-article h3 {
    color: var(--primary-dark);
    margin-top: 20px;
    font-size: 1.25rem;
}

/* SEO Teknik Tabloları */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 20px 0;
}

.tech-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

.tech-table th,
.tech-table td {
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    text-align: left;
    font-size: 0.92rem;
}

.tech-table th {
    background: #f1f5f9;
    color: var(--slate-dark);
    font-weight: 700;
}

/* Yan Form (Sticky Sidebar) */
.sidebar-form-box .sticky-form {
    position: sticky;
    top: 100px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
}

.calc-section {
    padding: 30px 0;
    background: #fff;
}

.calc-card {
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    border-radius: 12px;
    padding: 24px;
}

.calc-card h3 {
    margin-top: 0;
    color: var(--slate-dark);
}

.calc-inputs {
    display: flex;
    gap: 15px;
    align-items: flex-end;
    margin-top: 15px;
    flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   11. SIKÇA SORULAN SORULAR (FAQ ACCORDION)
   -------------------------------------------------------------------------- */
.faq-section {
    padding: 100px 24px;
    background-color: #ffffff;
    position: relative;
    content-visibility: auto;
    contain-intrinsic-size: 600px;
}

.faq-list {
    max-width: 900px;
    margin: 48px auto 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item[open],
.faq-item:hover {
    border-color: rgba(234, 88, 12, 0.4);
    box-shadow: 0 10px 25px -10px rgba(0, 0, 0, 0.05);
}

.faq-question {
    padding: 20px 24px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--slate-dark);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    list-style: none;
    user-select: none;
}

.faq-question::-webkit-details-marker,
.faq-question::marker {
    display: none;
}

.faq-icon {
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.4rem;
    font-weight: 400;
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item[open] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 24px 24px 24px;
    color: var(--text-muted);
    font-size: 0.98rem;
    line-height: 1.7;
    border-top: 1px solid var(--border-color);
    margin-top: 4px;
    padding-top: 16px;
}

/* --------------------------------------------------------------------------
   12. İLETİŞİM FORMU & FOOTER
   -------------------------------------------------------------------------- */
.contact-section {
    padding: 100px 24px;
    background-color: #f1f5f9;
    position: relative;
}

.contact-container {
    max-width: 1280px;
    margin: 48px auto 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-info-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.info-icon {
    width: 44px;
    height: 44px;
    background: rgba(234, 88, 12, 0.08);
    border: 1px solid rgba(234, 88, 12, 0.25);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.info-details h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--slate-dark);
    margin-bottom: 4px;
}

.info-details p,
.info-details a {
    font-size: 0.95rem;
    color: var(--text-muted);
    text-decoration: none;
    line-height: 1.5;
    transition: color 0.3s ease;
}

.info-details a:hover {
    color: var(--primary-color);
}

.contact-form-wrapper {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 36px;
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.88rem;
    font-weight: 600;
    color: #334155;
}

.form-control,
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--slate-dark);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus,
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.15);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

textarea.form-control,
.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.site-footer {
    background-color: #e2e8f0;
    border-top: 1px solid var(--border-color);
    padding: 60px 24px 24px 24px;
    content-visibility: auto;
    contain-intrinsic-size: 400px;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 48px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-top: 12px;
}

.footer-column h5 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--slate-dark);
    margin-bottom: 16px;
    letter-spacing: -0.2px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    max-width: 1280px;
    margin: 0 auto;
    padding-top: 24px;
    border-top: 1px solid rgba(15, 23, 42, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   13. SABİT AKSİYON BUTONLARI (WHATSAPP & YUKARI ÇIK)
   -------------------------------------------------------------------------- */
.fixed-whatsapp,
.scroll-to-top {
    position: fixed;
    right: 20px;
    left: auto;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    z-index: 9999;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    touch-action: manipulation;
    will-change: transform;
}

.fixed-whatsapp {
    bottom: 20px;
    background-color: #25d366;
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.scroll-to-top {
    bottom: 80px;
    /* WhatsApp butonunun tam 10px üstünde kalır */
    background-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
}

.scroll-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.fixed-whatsapp:hover,
.scroll-to-top:hover {
    transform: scale(1.08);
}

/* --------------------------------------------------------------------------
   14. KONSOLİDE EDİLMİŞ MOBİL & TABLET KIRILMA NOKTALARI (RESPONSIVE)
   -------------------------------------------------------------------------- */

/* Tablet & Küçük Ekranlar (1024px ve Altı) */
@media (max-width: 1024px) {
    .filters-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .authority-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Dikey Tablet & Geniş Mobil (900px ve Altı) */
@media (max-width: 900px) {
    .main-nav {
        display: none;
    }

    .pdp-hero-grid,
    .content-grid {
        grid-template-columns: 1fr;
    }

    .cta-banner-container {
        flex-direction: column;
        text-align: center;
    }

    .cta-banner-actions {
        flex-direction: column;
        width: 100%;
    }

    .cta-banner-actions .btn,
    .cta-banner-actions a {
        width: 100%;
        justify-content: center;
    }

    .calc-inputs {
        flex-direction: column;
        align-items: stretch;
    }

    .input-group input {
        width: 100%;
    }
}

/* Mobil Standart Ekranlar (768px ve Altı) */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-features {
        gap: 16px;
        flex-direction: column;
    }

    .nav-menu {
        gap: 12px;
    }

    .nav-menu a {
        font-size: 0.85rem;
    }

    /* Mobil Sabit Buton Boyut Düzeltmeleri */
    .fixed-whatsapp,
    .scroll-to-top {
        right: 15px;
        width: 44px;
        height: 44px;
    }

    .fixed-whatsapp {
        bottom: 15px;
    }

    .scroll-to-top {
        bottom: 67px;
        /* 15px + 44px + 8px boşluk */
    }

    .fixed-whatsapp svg,
    .fixed-whatsapp i,
    .scroll-to-top svg,
    .scroll-to-top i {
        font-size: 20px;
        width: 20px;
        height: 20px;
    }
}

/* Akıllı Telefonlar (640px ve Altı) */
@media (max-width: 640px) {
    .filters-grid {
        grid-template-columns: 1fr;
    }

    .section-title,
    .authority-title {
        font-size: 1.8rem;
    }

    .card-image,
    .filter-card-image {
        height: 200px;
    }

    .authority-grid {
        grid-template-columns: 1fr;
    }

    .coverflowSlider .swiper-slide {
        width: 260px;
        height: 360px;
    }

    .faq-question {
        font-size: 0.98rem;
        padding: 16px 20px;
    }

    .faq-answer {
        padding: 0 20px 20px 20px;
        font-size: 0.92rem;
    }

    .contact-form-wrapper {
        padding: 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

/* Kapsül Dil Değiştirici */
.lang-pill-switch {
    display: inline-flex;
    align-items: center;
    background-color: #f1f5f9;
    padding: 3px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.lang-pill-switch .lang-pill {
    padding: 4px 10px;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 16px;
    transition: all 0.25s ease;
    letter-spacing: 0.5px;
}

.lang-pill-switch .lang-pill.active {
    background-color: #ffffff;
    color: var(--slate-dark);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.lang-pill-switch .lang-pill:hover:not(.active) {
    color: var(--primary-color);
}