/* =================================================================
   PRD TEST KONTROL HİZMETLERİ A.Ş. - KURUMSAL PREMIUM V4
   Açıklama: PRD Test Kurumsal Kimliğine (Lacivert/Mavi) tam uyumlu,
   otoriter, güven veren ve modern mühendislik tasarım dili.
   ================================================================= */

:root {
    /* PRD Test Kurumsal Paleti */
    --brand-navy: #0f172a;       /* PRD Primary (Derin Lacivert) */
    --brand-navy-light: #1e293b; /* Slate 800 (Yumuşak Lacivert) */
    --brand-blue: #2563eb;       /* PRD Secondary (Kurumsal Mavi) */
    --brand-blue-hover: #1d4ed8;
    --brand-cyan: #0ea5e9;       /* Vurgular için Sky Blue */
    
    /* Zeminler ve Materyaller */
    --surface-white: #ffffff;
    --surface-gray: #f8fafc;     /* Slate 50 (Soğuk Gri Zemin) */
    --border-delicate: #e2e8f0;  /* Slate 200 (Net Sınırlar) */
    --border-glass: rgba(255, 255, 255, 0.15);

    /* Tipografi */
    --text-heading: #0f172a;     /* Başlıklar (Primary ile aynı) */
    --text-body: #475569;        /* Slate 600 (Okunaklı Gövde) */
    --text-muted: #94a3b8;       /* Slate 400 */
    
    /* Animasyonlar */
    --transition-liquid: all 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
    --transition-snappy: all 0.3s ease-out;
    
    /* Premium Gölgeler (Daha yumuşak ve profesyonel) */
    --shadow-float: 0 20px 40px -10px rgba(15, 23, 42, 0.12);
    --shadow-glow: 0 0 25px rgba(37, 99, 235, 0.25);
    --shadow-card: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -1px rgba(15, 23, 42, 0.03);
    --radius-sleek: 16px; /* Daha oturaklı kavis */
}

/* -----------------------------------------------------------------
   1. GENEL MİMARİ VE TİPOGRAFİ
   ----------------------------------------------------------------- */
html { scroll-behavior: smooth; }

.prd-service-layout {
    font-family: 'Segoe UI', 'Inter', Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-body);
    line-height: 1.8;
    background-color: var(--surface-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Devasa Whitespace - Lüksün anahtarı boşluktur */
.content-section { padding: 120px 0; position: relative; }

.bg-white { background-color: var(--surface-white); }
.bg-gray { background-color: var(--surface-gray); border-top: 1px solid #e2e8f0; border-bottom: 1px solid #e2e8f0; }
.bg-navy { background-color: var(--brand-navy); color: #fff; }

/* Grid Sistemleri */
.grid-2-cols { display: grid; grid-template-columns: repeat(2, 1fr); gap: 80px; }
.grid-3-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.grid-4-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.align-items-center { align-items: center; }

/* -----------------------------------------------------------------
   2. EDİTORYAL BAŞLIK HİYERARŞİSİ
   ----------------------------------------------------------------- */
.section-header { 
    max-width: 850px; 
    margin: 0 auto 70px auto; 
    position: relative; 
    z-index: 2; 
    text-align: center;
}

.section-header h2 {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--text-heading);
    margin-bottom: 20px;
    letter-spacing: -1px;
    line-height: 1.2;
    position: relative;
    display: inline-block;
    padding-bottom: 25px;
}

/* Başlık Altı Çizgi (PRD İmzası) */
.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px; 
    height: 4px;
    background: var(--brand-blue);
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
    z-index: 2;
}

/* Sanatsal Geniş Yay (Artistic Spread) */
.section-header h2::before {
    content: '';
    position: absolute;
    bottom: 1px;
    left: 50%;
    transform: translateX(-50%);
    width: 140px; 
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(14, 165, 233, 0.4), transparent);
    z-index: 1;
}

.section-header p { 
    font-size: 1.15rem; 
    font-weight: 400; 
    line-height: 1.7; 
    color: var(--text-body); 
    max-width: 700px;
    margin: 0 auto;
}

/* -----------------------------------------------------------------
   3. SİNEMATİK HERO BÖLÜMÜ (Derinlik ve Işık Efektleri)
   ----------------------------------------------------------------- */
.prd-hero {
    position: relative;
    height: 100vh; /* Tam ekran (Viewport Height) */
    min-height: 700px; /* Mobil ve küçük ekranlar için koruma */
    display: flex;
    align-items: center; /* İçeriği dikeyde ortala */
    justify-content: center; /* Yatayda ortala */
    padding: 100px 0 0 0; /* Header'ın kapladığı alan için optik dengeleme */
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: #fff;
    text-align: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0.95) 100%);
    z-index: 1;
}

/* Canlı Parlama Animasyonu */
@keyframes pulse-glow {
    0% { transform: translate(-50%, -50%) scale(1); opacity: 0.4; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.6; }
    100% { transform: translate(-50%, -50%) scale(1); opacity: 0.4; }
}

.hero-glow-orb {
    position: absolute;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.3) 0%, transparent 70%);
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
    filter: blur(80px);
    opacity: 0.6;
    animation: pulse-glow 10s infinite ease-in-out;
    mix-blend-mode: screen;
}

.hero-content { position: relative; z-index: 2; max-width: 900px; margin: 0 auto; }

/* Buzlu Cam Rozet (Glassmorphism) */
.hero-glass-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 10px 28px;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-glass);
    color: #fff;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 40px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}
.hero-glass-badge i { color: var(--brand-cyan); }

.prd-hero h1 {
    font-size: 4.2rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 35px;
    letter-spacing: -2px;
    text-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.text-gradient { 
    color: transparent;
    background-image: linear-gradient(135deg, #ffffff 0%, #e0f2fe 50%, var(--brand-cyan) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    filter: drop-shadow(0 0 20px rgba(14, 165, 233, 0.3));
}

.hero-lead {
    font-size: 1.25rem;
    font-weight: 400;
    color: #cbd5e1;
    margin-bottom: 60px;
    line-height: 1.7;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Güven Barı (Minimal İkonlar) */
.hero-trust-bar {
    display: flex;
    justify-content: center;
    gap: 50px;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 40px;
    margin-top: 70px;
}
.trust-item { font-size: 1rem; color: #cbd5e1; display: flex; align-items: center; gap: 12px; font-weight: 500;}
.trust-item i { color: var(--brand-cyan); font-size: 1.2rem; }

/* -----------------------------------------------------------------
   4. MÜCEVHER KESİM BUTONLAR (Inset Shadows)
   ----------------------------------------------------------------- */
.hero-actions, .cta-buttons { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; }

.btn-primary-lux, .btn-outline-lux {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px; /* <-- İKON İLE YAZI ARASINDAKİ MÜKEMMEL BOŞLUK BURASI */
    padding: 20px 45px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.05rem;
    text-decoration: none;
    transition: var(--transition-liquid);
    letter-spacing: 0.5px;
}

.btn-primary-lux {
    background: var(--brand-blue);
    color: #fff;
    box-shadow: 0 10px 20px -5px rgba(37, 99, 235, 0.4);
    border: none;
}

.btn-primary-lux:hover {
    background: var(--brand-blue-hover);
    transform: translateY(-3px);
    box-shadow: 0 15px 30px -5px rgba(37, 99, 235, 0.5);
    color: #fff;
}

.btn-outline-lux {
    background-color: transparent;
    color: #fff;
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(10px);
}

.btn-outline-lux:hover {
    background-color: var(--surface-white);
    color: var(--brand-navy);
    transform: translateY(-3px);
}

.btn-primary-lux i, .btn-outline-lux i {
    font-size: 1.25rem; 
}
/* -----------------------------------------------------------------
   5. BİLGİ KARTLARI VE ŞEFFAF İKONLAR
   ----------------------------------------------------------------- */
.info-card {
    background: var(--surface-white);
    padding: 60px 50px;
    border-radius: var(--radius-sleek);
    border: 1px solid var(--border-delicate);
    box-shadow: var(--shadow-card);
    transition: var(--transition-snappy);
    position: relative;
    z-index: 1;
}

.info-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-float);
    border-color: rgba(37, 99, 235, 0.15);
}

.border-top-blue { border-top: 3px solid var(--brand-blue); }

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 30px;
    transition: var(--transition-snappy);
    background: #f1f5f9;
}
.info-card:hover .card-icon { transform: scale(1.1); background: var(--brand-blue); color: #fff !important; }
.blue-icon { color: var(--brand-blue); background: rgba(37, 99, 235, 0.05); }

.info-card h3, .info-card h4 {
    font-size: 1.5rem;
    color: var(--text-heading);
    margin-bottom: 15px;
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.3;
}
.info-card p { font-size: 1.05rem; font-weight: 400; color: var(--text-body); }

/* -----------------------------------------------------------------
   6. GÖRSEL SUNUM (Resim Arkası Glow Efekti)
   ----------------------------------------------------------------- */
.image-glow-wrapper { position: relative; z-index: 1; }
.image-glow-wrapper::before {
    content: '';
    position: absolute;
    inset: -30px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
    filter: blur(20px);
    z-index: -1;
    border-radius: inherit;
}
.rounded-luxury-img {
    width: 100%;
    border-radius: var(--radius-sleek);
    box-shadow: var(--shadow-float);
    border: 1px solid rgba(255,255,255,0.5);
}

/* -----------------------------------------------------------------
   7. MÜFREDAT KUTULARI (Devasa Şeffaf Sayılar)
   ----------------------------------------------------------------- */
.curriculum-box {
    background: var(--surface-white);
    border-radius: var(--radius-sleek);
    padding: 60px 50px;
    border: 1px solid var(--border-delicate);
    position: relative;
    overflow: hidden;
    transition: var(--transition-snappy);
    z-index: 1;
}

.curriculum-box.tinted-box { background: #f0f9ff; border-color: #bae6fd; }
.curriculum-box:hover { transform: translateY(-5px); box-shadow: var(--shadow-float); border-color: var(--brand-blue); }

/* Koyu zemin versiyonu (Dark Section için Glass Box) */
.dark-section .glass-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}
.dark-section .glass-box:hover { background: rgba(255, 255, 255, 0.05); border-color: rgba(255, 255, 255, 0.2); }
.dark-section .glass-box h3 { color: #fff; }
.dark-section .glass-box .box-desc { color: #a1a1aa; }

.box-header { margin-bottom: 35px; position: relative; }

.step-num {
    position: absolute;
    top: -60px;
    right: -30px;
    font-size: 12rem;
    font-weight: 900;
    color: var(--text-heading);
    opacity: 0.03;
    line-height: 0.8;
    pointer-events: none;
    transition: var(--transition-snappy);
    z-index: -1;
}
.dark-section .step-num { color: #fff; opacity: 0.02; }
.curriculum-box:hover .step-num { opacity: 0.06; transform: scale(1.05); color: var(--brand-blue); }
.highlight-color { color: var(--brand-blue); opacity: 0.05; }

.box-header h3 { font-size: 1.75rem; color: var(--text-heading); margin: 0; font-weight: 800; letter-spacing: -1px;}

/* Minimal Tireli Liste */
.custom-list { list-style: none; padding: 0; margin: 0; }
.custom-list li { position: relative; padding-left: 25px; margin-bottom: 15px; font-size: 1.05rem; font-weight: 400; color: var(--text-body); }
.custom-list li::before { content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900; position: absolute; left: 0; top: 3px; color: var(--brand-blue); font-size: 0.9rem; }

/* -----------------------------------------------------------------
   8. ADIM VE EKİP KARTLARI (Process & Teams)
   ----------------------------------------------------------------- */
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.step-card {
    background: var(--surface-white);
    padding: 50px 40px;
    border-radius: var(--radius-sleek);
    border: 1px solid var(--border-delicate);
    position: relative;
    transition: var(--transition-snappy);
}
.step-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-float); border-color: var(--brand-blue); }
.step-icon {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--brand-blue);
    opacity: 0.15;
    margin-bottom: 20px;
    line-height: 1;
}
.step-card h4 { font-size: 1.5rem; color: var(--text-heading); margin-bottom: 15px; font-weight: 800; letter-spacing: -0.5px; }

.team-card {
    padding: 35px 30px;
    border-radius: var(--radius-sleek);
    background-color: var(--surface-white);
    border: 1px solid var(--border-delicate);
    transition: var(--transition-snappy);
}
.team-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-float); border-color: var(--brand-blue); }
.team-card h4 { font-size: 1.25rem; color: var(--text-heading); margin-bottom: 10px; font-weight: 700; }
.team-card h4 i { color: var(--brand-blue); margin-right: 10px;}

/* E-Devlet Rozetleri */
.certificate-badge-wrapper { padding: 20px 0; }
.trust-badge {
    background: var(--surface-white);
    padding: 25px 45px;
    border-radius: 50px;
    box-shadow: var(--shadow-card);
    display: flex;
    align-items: center;
    gap: 18px;
    border: 1px solid var(--border-delicate);
    transition: var(--transition-snappy);
}
.trust-badge:hover { transform: translateY(-5px); box-shadow: var(--shadow-float); border-color: var(--brand-blue); background: #f8fafc; }
.trust-badge i { font-size: 2.2rem; color: var(--brand-blue); }
.trust-badge span { font-weight: 700; color: var(--text-heading); font-size: 1.2rem; }

/* -----------------------------------------------------------------
   9. BLOG KARTLARI (Premium Editoryal Yapı)
   ----------------------------------------------------------------- */
.blog-card {
    background: var(--surface-white);
    border-radius: var(--radius-sleek);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-delicate);
    transition: var(--transition-liquid);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-float);
    border-color: rgba(37, 99, 235, 0.2); /* Soft Blue Border */
}

.blog-card-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

/* Görsel Alanı ve Rozetler */
.blog-thumb {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.blog-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.blog-card:hover .blog-img {
    transform: scale(1.08);
}

/* Cam Efektli (Glassmorphism) Tarih Rozeti */
.blog-date-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 10px 15px;
    border-radius: 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    z-index: 2;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.date-day {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-heading);
    line-height: 1;
    margin-bottom: 2px;
}

.date-month {
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--brand-blue);
    letter-spacing: 1px;
}

/* Kategori Rozeti */
.blog-category {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: var(--brand-blue);
    color: #fff;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    z-index: 2;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

/* İçerik ve Tipografi */
.blog-content {
    padding: 35px 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 15px;
    font-weight: 500;
}

.meta-dot {
    width: 4px;
    height: 4px;
    background-color: #cbd5e1;
    border-radius: 50%;
}

.blog-card-title {
    font-size: 1.4rem;
    color: var(--text-heading);
    margin-bottom: 15px;
    line-height: 1.4;
    font-weight: 800;
    letter-spacing: -0.02em;
    transition: color 0.3s ease;
}

.blog-card:hover .blog-card-title {
    color: var(--brand-blue);
}

.blog-excerpt {
    font-size: 1.05rem;
    color: var(--text-body);
    margin-bottom: 30px;
    font-weight: 300;
    flex-grow: 1;
    line-height: 1.7;
}

/* Yazar ve İleri Oku Alt Bilgisi */
.blog-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 25px;
    border-top: 1px solid var(--border-delicate);
}

.blog-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--surface-gray);
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--text-heading);
    letter-spacing: -0.01em;
}

.author-role {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* Yuvarlak Hover Efektli İleri Oku Butonu */
.read-more-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--surface-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-heading);
    font-size: 1rem;
    transition: var(--transition-snappy);
}

.blog-card:hover .read-more-link {
    background: var(--brand-blue);
    color: #fff;
    transform: translateX(5px) scale(1.05);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
}

/* Feature Item Lux (Icon + Text List) - İSG Eğitimleri Sayfası İçin */
.feature-item-lux {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    align-items: flex-start;
}

.feature-item-lux i {
    font-size: 1.5rem;
    color: var(--brand-blue);
    background: rgba(37, 99, 235, 0.1);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    flex-shrink: 0;
    transition: var(--transition-snappy);
}

.feature-item-lux:hover i {
    background: var(--brand-blue);
    color: #fff;
    transform: scale(1.1);
}

.feature-item-lux h4 {
    font-size: 1.2rem;
    color: var(--text-heading);
    margin-bottom: 8px;
    font-weight: 700;
}

.feature-item-lux p {
    font-size: 1rem;
    color: var(--text-body);
    line-height: 1.6;
    margin: 0;
}

/* -----------------------------------------------------------------
   10. SIKÇA SORULAN SORULAR (Sanatsal & Ultra Premium Akordiyon)
   ----------------------------------------------------------------- */
.faq-wrapper {
    max-width: 900px;
    margin: 0 auto;
    counter-reset: faq-counter; /* Editoryal sayı sayacı başlatıldı */
    display: flex;
    flex-direction: column;
    gap: 20px; /* Liste yerine havada asılı duran kartlar */
}

.faq-item {
    background: var(--surface-white);
    border: 1px solid var(--border-delicate);
    border-radius: var(--radius-sleek);
    box-shadow: var(--shadow-card);
    overflow: hidden; 
    transition: var(--transition-liquid);
    position: relative;
}

/* Sol tarafta beliren mimari güvenlik/vurgu çizgisi (ISG Otoritesi) */
.faq-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--brand-blue);
    transform: scaleY(0);
    transform-origin: center;
    transition: var(--transition-liquid);
    z-index: 2;
}

.faq-item:hover {
    box-shadow: var(--shadow-float);
    border-color: rgba(37, 99, 235, 0.2);
    transform: translateY(-3px); /* Hafifçe havalanma */
}

.faq-item[open] {
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: var(--shadow-glow);
}

/* Kutu açıldığında sol mavi çizgi uzar */
.faq-item[open]::before {
    transform: scaleY(1);
}

.faq-item summary {
    padding: 35px 40px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-heading);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-snappy);
    letter-spacing: -0.02em;
    background-color: var(--surface-white);
    position: relative;
    z-index: 1;
}

/* Eski sistem okları gizleme */
.faq-item summary::marker,
.faq-item summary::-webkit-details-marker {
    display: none;
}

/* Sanatsal Detay: Arka plandaki devasa şeffaf sıra numarası (01, 02, 03) */
.faq-item summary::after {
    counter-increment: faq-counter;
    content: counter(faq-counter, decimal-leading-zero);
    position: absolute;
    left: 40px;
    font-size: 4.5rem;
    font-weight: 900;
    color: var(--text-heading);
    opacity: 0.03; /* Neredeyse görünmez filigran */
    z-index: -1;
    line-height: 1;
    transition: var(--transition-liquid);
    pointer-events: none;
}

/* Açıldığında arkadaki sayı maviye dönüp hafifçe büyür */
.faq-item[open] summary::after {
    opacity: 0.08;
    color: var(--brand-blue);
    transform: scale(1.1) translateX(10px);
}

/* İkon için lüks dairesel rozet tasarımı */
.faq-item summary .icon {
    width: 45px;
    height: 45px;
    min-width: 45px;
    border-radius: 50%;
    background: var(--surface-gray);
    border: 1px solid var(--border-delicate);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--text-muted);
    transition: var(--transition-liquid);
    z-index: 1;
}

.faq-item:hover summary .icon {
    background: var(--brand-blue-soft);
    color: var(--brand-blue);
    border-color: rgba(37, 99, 235, 0.2);
}

.faq-item[open] summary .icon {
    transform: rotate(180deg);
    background: var(--brand-blue);
    color: #fff;
    border-color: var(--brand-blue);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.4);
}

.faq-item[open] summary {
    color: var(--brand-blue);
}

/* İçerik / Cevap Alanı - Pürüzsüz Animasyonlu Giriş */
.faq-content {
    padding: 0 40px 35px 40px;
    font-weight: 300;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-body);
    background-color: var(--surface-white);
    position: relative;
    z-index: 1;
    animation: faq-fade-in 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    transform-origin: top;
}

@keyframes faq-fade-in {
    from {
        opacity: 0;
        transform: translateY(-15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobilde Boşluk ve Font Ayarları */
@media (max-width: 768px) {
    .faq-item summary {
        padding: 25px 25px;
        font-size: 1.1rem;
        gap: 15px; /* Başlık ile ikon arası mesafe */
    }
    .faq-item summary::after {
        left: 25px;
        font-size: 3.5rem; /* Mobilde filigran boyutu */
    }
    .faq-item summary .icon {
        width: 38px;
        height: 38px;
        min-width: 38px;
        font-size: 0.95rem;
    }
    .faq-content {
        padding: 0 25px 25px 25px;
        font-size: 1rem;
    }
}
/* -----------------------------------------------------------------
   11. FİNAL CTA (Sinematik ve Teknolojik Kapanış)
   ----------------------------------------------------------------- */
.cta-section-premium {
    background-color: var(--brand-navy);
    background-image: linear-gradient(to bottom, var(--brand-navy) 0%, #020617 100%);
    padding: 180px 0;
    color: #fff;
    position: relative;
    overflow: hidden;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

/* Mühendislik / Tasarım Çizgisi Hissi Veren Şeffaf Grid Arka Plan */
.cta-section-premium::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: 0;
    pointer-events: none;
    -webkit-mask-image: radial-gradient(circle at center, black 30%, transparent 80%);
    mask-image: radial-gradient(circle at center, black 30%, transparent 80%);
}

/* Nefes Alan (Pulse) Işık Topu Animasyonu */
@keyframes cta-breathe {
    0%, 100% { opacity: 0.4; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.7; transform: translate(-50%, -50%) scale(1.15); }
}

.cta-glow-orb {
    position: absolute;
    width: 900px;
    height: 900px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.25) 0%, transparent 65%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    filter: blur(60px);
    pointer-events: none;
    z-index: 0;
    animation: cta-breathe 8s ease-in-out infinite;
}

/* === MERKEZLEME GARANTİSİ (FLEXBOX) === */
.cta-content { 
    position: relative; 
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center; /* Her şeyi dikeyde tam merkeze alır */
    justify-content: center;
    text-align: center; /* Metinleri tam merkeze alır */
    width: 100%;
}

/* Apple Tarzı Metalik ve Tok Başlık */
.cta-section-premium h2 { 
    font-size: 4rem; 
    font-weight: 900; 
    margin-bottom: 30px; 
    letter-spacing: -0.04em; 
    line-height: 1.1;
    text-align: center; /* Ekstra güvenlik */
    width: 100%;
    background: linear-gradient(135deg, #ffffff 30%, #93c5fd 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    /* Gradient yazılarda shadow bozulmaması için filter kullanılır */
    filter: drop-shadow(0 15px 35px rgba(37, 99, 235, 0.2)); 
}

.cta-section-premium p { 
    font-size: 1.35rem; 
    color: #94a3b8; 
    font-weight: 300; 
    line-height: 1.8;
    max-width: 750px; 
    margin: 0 auto; 
    text-align: center;
}

.cta-buttons {
    margin-top: 60px;
    position: relative;
    z-index: 3;
    display: flex;
    gap: 20px;
    justify-content: center;
    width: 100%;
}

/* Responsive Ayarlar CTA Özel */
@media (max-width: 768px) {
    .cta-section-premium { padding: 120px 0; }
    .cta-section-premium h2 { font-size: 2.6rem; margin-bottom: 20px; }
    .cta-section-premium p { font-size: 1.15rem; }
    .cta-glow-orb { width: 500px; height: 500px; }
    .cta-buttons { flex-direction: column; width: 100%; max-width: 350px; }
}
/* -----------------------------------------------------------------
   12. KUSURSUZ RESPONSIVE (Mobil - Header Çakışma Düzeltmesi)
   ----------------------------------------------------------------- */
@media (max-width: 1200px) {
    .prd-hero h1 { font-size: 3.8rem; }
    .process-steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1024px) {
    .grid-4-cols { grid-template-columns: repeat(2, 1fr); }
    .grid-3-cols { grid-template-columns: repeat(2, 1fr); }
    .section-header h2 { font-size: 2.8rem; }
    .step-num { font-size: 10rem; right: -10px; top: -30px; }
}

@media (max-width: 768px) {
    .content-section { padding: 90px 0; }
    
    /* === HERO MOBİL DÜZELTMESİ (HEADER KAYMA ÇÖZÜMÜ) === */
    .prd-hero { 
        height: auto; 
        min-height: 100vh; /* Ekranda yine ferah dursun ama içeriğe göre uzasın */
        display: flex;
        flex-direction: column;
        justify-content: center;
        /* DİKKAT: Mobil Header genellikle 80-100px kaplar. İçeriği kurtarmak için 180px üst boşluk veriyoruz */
        padding: 180px 15px 80px 15px; 
    }
    
    .hero-content {
        width: 100%;
    }

    /* Rozetin mobildeki taşmasını engelleme */
    .hero-glass-badge {
        font-size: 0.7rem;
        padding: 8px 16px;
        margin-bottom: 25px;
        line-height: 1.5;
        white-space: normal; /* Metin uzunsa estetik şekilde alt satıra geçsin */
        display: inline-flex; /* Rozeti toparlar */
        text-align: left;
    }
    
    .prd-hero h1 { 
        font-size: 2.4rem; 
        line-height: 1.2;
        margin-bottom: 20px;
        letter-spacing: -1px;
    }
    
    .hero-lead { 
        font-size: 1.1rem; 
        line-height: 1.6;
        margin-bottom: 40px;
        padding: 0 10px;
    }
    
    .hero-trust-bar { 
        flex-direction: column; 
        gap: 15px; 
        margin-top: 40px;
        padding-top: 30px;
    }
    
    /* === DİĞER MOBİL AYARLARI === */
    .section-header { margin-bottom: 50px; padding: 0 15px; }
    .section-header h2 { font-size: 2.2rem; }
    
    .grid-2-cols, .grid-3-cols, .grid-4-cols, .process-steps { 
        grid-template-columns: 1fr; 
        gap: 30px; 
    }
    
    .info-card, .curriculum-box, .step-card { padding: 35px 25px; }
    .step-num { font-size: 7rem; }
    
    .hero-actions, .cta-buttons { 
        flex-direction: column; 
        width: 100%; 
        max-width: 350px; 
        margin-left: auto; 
        margin-right: auto;
    }
    
    .btn-primary-lux, .btn-outline-lux { 
        width: 100%; 
        padding: 16px 20px;
    }
    
    .trust-badge { width: 100%; justify-content: flex-start; padding: 20px 30px; }
    .trust-badge span { font-size: 1rem; }
    
    .faq-item summary { font-size: 1.1rem; padding: 20px 15px; }
    .faq-item summary .icon { width: 35px; min-width: 35px; height: 35px; }
    .faq-content { padding: 0 20px 20px 20px; font-size: 1rem; }
    
    .cta-section-premium h2 { font-size: 2.5rem; }
    .cta-section-premium { padding: 100px 15px; }
}