/* --- FONT TANIMLAMALARI --- */
@font-face {
    font-family: 'SF Pro Text';
    src: url('fonts/SF-Pro-Text-Regular.otf') format('opentype');
    font-weight: 400; font-style: normal;
}
@font-face {
    font-family: 'SF Pro Text';
    src: url('fonts/SF-Pro-Text-Medium.otf') format('opentype');
    font-weight: 500; font-style: normal;
}
@font-face {
    font-family: 'SF Pro Display';
    src: url('fonts/SF-Pro-Display-Bold.otf') format('opentype');
    font-weight: 700; font-style: normal;
}

/* --- TEMEL AYARLAR --- */
:root {
    --nav-height: 48px;
    --bg-color: #ffffff;
    --text-color: #1d1d1f;
    --accent-color:  #075bb0;
    --nav-bg: rgba(255, 255, 255, 0.8);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body { 
    font-family: 'SF Pro Text', sans-serif; 
    background-color: var(--bg-color); 
    color: var(--text-color); 
    overflow-x: hidden; 
}

h1, h2, h3 { font-family: 'SF Pro Display', sans-serif; }

/* --- NAVBAR (Yeni Tasarım) --- */
.main-navigation {
    position: fixed; top: 0; left: 0; width: 100%; height: var(--nav-height);
    background: var(--nav-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    z-index: 1000; border-bottom: 1px solid rgba(0,0,0,0.1);
}

.nav-container { max-width: 1024px; margin: 0 auto; height: var(--nav-height); display: flex; align-items: center; justify-content: space-between; padding: 0 20px; }
.brand-logo img { height: 28px; width: auto; opacity: 0.9; transition: opacity 0.2s; }
.brand-logo:hover img { opacity: 1; }

.nav-links { display: flex; list-style: none; gap: 24px; height: 100%; }
.nav-item { height: 100%; display: flex; align-items: center; }
.nav-btn { background: none; border: none; cursor: pointer; font-family: 'SF Pro Text', sans-serif; font-size: 12px; color: var(--text-color); opacity: 0.8; transition: opacity 0.2s; text-decoration: none; }
.nav-btn:hover { opacity: 1; }

.nav-actions { display: flex; align-items: center; gap: 16px; }
.action-btn { background: none; border: none; cursor: pointer; color: var(--text-color); opacity: 0.8; padding: 4px; display: flex; }
.action-btn:hover { opacity: 1; }

/* --- MODERN GERİ BUTONU --- */
.breadcrumb-bar { 
    padding: 100px 40px 0 40px; /* Nav bar'dan aşağı itmek için padding arttı */
}
.container { max-width: 1200px; margin: 0 auto; }

.modern-back-btn {
    display: inline-flex; align-items: center; gap: 10px;
    background: #f5f5f7; border: none;
    padding: 10px 20px; border-radius: 980px;
    cursor: pointer; transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    color: #1d1d1f; font-family: 'SF Pro Text', sans-serif;
    font-size: 13px; font-weight: 500;
}

.modern-back-btn .icon-arrow {
    display: flex; align-items: center; justify-content: center;
    width: 20px; height: 20px; background: #fff; border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.modern-back-btn svg { width: 12px; height: 12px; color:  #075bb0; }

.modern-back-btn:hover {
    background: #e8e8ed; transform: translateX(-5px);
}

/* --- DETAY ALANI --- */
.detail-container {
    padding: 40px;
    display: flex; justify-content: center; align-items: center;
    min-height: 80vh; 
}

.detail-wrapper {
    display: flex; /* Script ile bu display 'flex' yapılacak */
    gap: 80px; max-width: 1200px; width: 100%; align-items: center;
    opacity: 0; animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn { to { opacity: 1; } }

/* SOL: RESİM */
.detail-image-box {
    flex: 1.2;
    background-color: #f5f5f7; /* Apple Gri Zemin */
    border-radius: 30px;
    padding: 60px;
    display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
}
.detail-image-box img {
    width: 100%; height: auto; max-height: 500px;
    object-fit: contain; mix-blend-mode: multiply;
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.detail-image-box:hover img { transform: scale(1.05); }

/* SAĞ: BİLGİ */
.detail-info-box { flex: 1; }

.category-tag {
    font-size: 12px; font-weight: 600; color:  #075bb0;
    text-transform: uppercase; letter-spacing: 0.5px;
    margin-bottom: 15px; display: block;
}

h1 {
    font-size: 48px; font-weight: 700; color: #1d1d1f;
    margin-bottom: 20px; line-height: 1.1; letter-spacing: -0.02em;
}

.product-desc {
    font-family: 'SF Pro Text', sans-serif;
    font-size: 19px; line-height: 1.5; color: #86868b;
    margin-bottom: 40px; max-width: 95%;
}

.features-list h3 { font-size: 17px; font-weight: 600; margin-bottom: 15px; color: #1d1d1f; }
.features-list ul { list-style: none; margin-bottom: 40px; }
.features-list li {
    font-size: 15px; color: #424245; margin-bottom: 10px;
    padding-left: 20px; position: relative;
}
.features-list li::before {
    content: ''; background-color: #0071e3;
    width: 6px; height: 6px; border-radius: 50%;
    position: absolute; left: 0; top: 8px;
}

/* BUTON */
.request-btn-large {
    display: inline-block;
    background-color:  #075bb0;
    color: #fff; text-decoration: none;
    font-family: 'SF Pro Text', sans-serif;
    font-size: 17px; font-weight: 500;
    padding: 14px 40px; border-radius: 980px;
    transition: background 0.2s, transform 0.2s;
}
.request-btn-large:hover { background-color:  #075bb0; transform: scale(1.02); }
.contact-hint { font-size: 13px; color: #86868b; margin-top: 15px; }

/* Responsive */
@media (max-width: 900px) {
    .detail-wrapper { flex-direction: column; gap: 40px; }
    h1 { font-size: 36px; }
    .detail-image-box { padding: 30px; width: 100%; }
}