/* Genel Sıfırlama ve Temel Ayarlar */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body { 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
    background-color: #f8f9fa;
    color: #333;
}

/* --- HEADER (ÜST MENÜ) --- */
.header-top { 
    background-color: #2c3e50; 
    color: white; 
    padding: 15px 30px; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
}

.main-menu a {
    color: white; 
    text-decoration: none; 
    margin-right: 20px;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* --- BUTONLAR --- */
.btn-primary { 
    background-color: var(--primary-color); 
    color: white; 
    border: none; 
    padding: 12px 24px; 
    border-radius: 4px;
    cursor: pointer; 
    font-weight: bold;
    transition: opacity 0.3s;
}

.btn-primary:hover {
    opacity: 0.9;
}

/* --- ARAMA MODÜLÜ (HERO SECTION) --- */
.hero-section {
    background-image: url('../images/hero-bg.jpg'); /* Görsel yolu */
    background-color: #34495e; /* Resim yüklenene kadar yedek renk */
    background-size: cover;
    background-position: center;
    padding: 80px 20px;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-module {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    max-width: 1000px;
    width: 100%;
    overflow: hidden;
}

.search-tabs {
    display: flex;
    background: #f8f9fa;
    border-bottom: 1px solid #eee;
}

.search-tab {
    padding: 15px 30px;
    cursor: pointer;
    font-weight: bold;
    color: #666;
    border-right: 1px solid #eee;
    transition: 0.3s;
}

.search-tab.active {
    background: white;
    color: var(--primary-color);
    border-bottom: 3px solid var(--primary-color);
}

.search-form-body {
    padding: 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: center;
}

.input-group {
    flex: 1;
    min-width: 200px;
    display: flex;
    flex-direction: column;
}

.input-group label {
    font-size: 12px;
    font-weight: bold;
    color: #333;
    margin-bottom: 5px;
}

.input-group input, .input-group select {
    padding: 10px;
    border: none;
    border-bottom: 2px solid #ccc;
    font-size: 14px;
    outline: none;
    transition: 0.3s;
}

.input-group input:focus, .input-group select:focus {
    border-bottom-color: var(--primary-color);
}

/* Mobil Uyumluluk (Responsive) */
@media (max-width: 768px) {
    .search-form-body { flex-direction: column; }
    .input-group { width: 100%; }
    .btn-submit { width: 100%; margin-top: 10px; }
    .search-tabs { overflow-x: auto; white-space: nowrap; }
}