/* --- TEMEL AYARLAR --- */
:root {
    --primary: #2c3e50;    /* Antrasit */
    --accent: #c5a880;     /* Bronz/Gold */
    --white: #ffffff;
    --light-bg: #f9f9f9;
    --text: #333;
    --black: #000000;      /* Siyah Arka Plan İçin */
    --transition: all 0.3s ease;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 125px; }

body { font-family: 'Montserrat', sans-serif; color: var(--text); line-height: 1.6; overflow-x: hidden; }
.container { max-width: 1150px; margin: 0 auto; padding: 0 20px; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* --- NAVBAR --- */
.main-header { 
    background: var(--black); 
    position: fixed; 
    width: 100%; 
    top: 0; 
    z-index: 1000; 
    box-shadow: 0 5px 20px rgba(0,0,0,0.5); 
    display: flex;
    justify-content: center;
    transition: var(--transition); 
}

.navbar { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    padding: 15px 40px; 
    width: 100%;
    max-width: 1050px; 
    transition: var(--transition); 
}

.nav-logo {
    height: 95px; 
    width: auto;
    object-fit: contain;
    display: block;
    transition: var(--transition);
}

.nav-logo:hover {
    transform: scale(1.05); 
}

.nav-links { display: flex; gap: 35px; }
.nav-links a { 
    font-size: 14px; 
    font-weight: 600; 
    text-transform: uppercase; 
    color: var(--accent); 
    transition: var(--transition); 
}
.nav-links a:hover { 
    color: var(--white); 
}

.menu-toggle { display: none; background: none; border: none; font-size: 26px; cursor: pointer; color: var(--accent); }

/* --- HERO --- */
.hero { height: 100vh; background: #111; position: relative; display: flex; align-items: center; justify-content: center; text-align: center; color: var(--white); }
.hero-overlay { position: absolute; top:0; left:0; width:100%; height:100%; background: rgba(0,0,0,0.7); }
.hero-content { position: relative; z-index: 1; max-width: 800px; }
.hero h1 { font-size: 3.5rem; font-weight: 300; margin-bottom: 20px; line-height: 1.2; }
.hero h1 span { font-weight: 700; color: var(--accent); }
.hero p { font-size: 1.2rem; color: #ddd; margin-bottom: 30px; }

/* --- BUTONLAR --- */
.btn { padding: 15px 35px; font-weight: 600; text-transform: uppercase; border: none; cursor: pointer; transition: var(--transition); border-radius: 3px; font-size: 13px; }
.btn-primary { background: var(--accent); color: var(--white); display: inline-block; }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 5px 15px rgba(197, 168, 128, 0.4); }

/* --- BÖLÜMLER --- */
.section { padding: 90px 0; }
.bg-light { background: var(--light-bg); }
.section-header { text-align: center; margin-bottom: 50px; }
.section-title { font-size: 2rem; color: var(--accent); text-transform: uppercase; font-weight: 700; }
.title-line { width: 60px; height: 3px; background: var(--accent); margin: 15px auto; }
.about-content { text-align: center; max-width: 800px; margin: 0 auto; color: #555; }

/* --- SLIDER VE PROJE KARTLARI --- */
.project-swiper { width: 100%; padding-bottom: 60px; overflow: hidden; }
.project-card { position: relative; height: 400px; overflow: hidden; border-radius: 4px; background: #e9ecef; display: block; width: 100%; }
.project-card img { width: 100%; height: 100%; object-fit: cover; transition: 0.8s ease; }
.project-card:hover img { transform: scale(1.1); }
.project-overlay { position: absolute; bottom: 0; left: 0; width: 100%; padding: 25px; background: linear-gradient(transparent, rgba(0,0,0,0.9)); color: var(--white); transform: translateY(10px); transition: 0.4s ease; }
.project-card:hover .project-overlay { transform: translateY(0); }
.project-overlay h3 { color: var(--accent); font-size: 1.3rem; margin-bottom: 5px; }
.project-overlay span { font-size: 0.9rem; color: #ccc; }
.swiper-button-next, .swiper-button-prev { color: var(--accent) !important; }
.swiper-pagination-bullet-active { background: var(--accent) !important; }

/* --- HİZMETLER --- */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.service-item { background: var(--white); padding: 50px 30px; text-align: center; box-shadow: 0 5px 15px rgba(0,0,0,0.05); transition: var(--transition); border-radius: 4px; }
.service-item:hover { transform: translateY(-10px); }
.service-item i { font-size: 3rem; color: var(--accent); margin-bottom: 20px; }
.service-item h3 { color: var(--accent); margin-bottom: 15px; }

/* --- ÇALIŞMA SÜRECİMİZ --- */
.process-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 30px; }
.process-step { background: var(--white); padding: 40px 25px; text-align: center; border-radius: 4px; box-shadow: 0 5px 15px rgba(0,0,0,0.03); transition: var(--transition); border-bottom: 3px solid transparent; }
.process-step:hover { transform: translateY(-10px); border-bottom: 3px solid var(--accent); background: var(--white); }
.step-number { font-size: 3.5rem; font-weight: 700; color: rgba(197, 168, 128, 0.2); margin-bottom: 10px; line-height: 1; transition: var(--transition); }
.process-step:hover .step-number { color: var(--accent); }
.process-step h3 { color: var(--primary); margin-bottom: 15px; font-size: 1.2rem; }
.process-step p { color: #555; font-size: 0.95rem; }

/* --- SIKÇA SORULAN SORULAR (SSS) --- */
.faq-container { max-width: 800px; margin: 0 auto; }
.accordion { background-color: var(--white); color: var(--primary); cursor: pointer; padding: 20px; width: 100%; text-align: left; border: none; outline: none; transition: var(--transition); font-size: 1.1rem; font-weight: 600; font-family: inherit; border-bottom: 1px solid #eee; display: flex; justify-content: space-between; align-items: center; border-radius: 4px; margin-bottom: 5px; }
.accordion:hover, .accordion.active { color: var(--accent); }
.accordion::after { content: '\f078'; font-family: 'Font Awesome 6 Free'; font-weight: 900; font-size: 1rem; color: var(--accent); transition: transform 0.3s ease; }
.accordion.active::after { transform: rotate(180deg); }
.panel { padding: 0 20px; background-color: transparent; max-height: 0; overflow: hidden; transition: max-height 0.3s ease-out; }
.panel p { padding: 20px 0; color: #555; font-size: 0.95rem; }

/* --- İLETİŞİM VE HARİTA --- */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 50px; align-items: start; }
.contact-info p { display: flex; align-items: center; gap: 15px; margin-bottom: 15px; font-weight: 500; font-size: 1.1rem; }
.contact-info i { color: var(--accent); font-size: 1.3rem; }
.contact-info a { transition: var(--transition); }
.contact-info a:hover { color: var(--accent); }
.map-container { margin-top: 30px; border-radius: 4px; overflow: hidden; box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
.map-container iframe { width: 100%; height: 250px; border: none; filter: grayscale(80%) contrast(1.1); }
.contact-form-box { background: var(--white); padding: 40px; box-shadow: 0 5px 20px rgba(0,0,0,0.05); border-radius: 4px; }
.contact-form-box input, .contact-form-box textarea { width: 100%; padding: 15px; margin-bottom: 20px; border: 1px solid #ddd; border-radius: 3px; outline: none; font-family: inherit; font-size: 1rem; }
.contact-form-box input:focus, .contact-form-box textarea:focus { border-color: var(--accent); }

/* --- FOOTER --- */
.footer { background: var(--black); color: var(--white); text-align: center; padding: 60px 0 50px 0; }
.footer-logo-img { height: 110px; width: auto; object-fit: contain; margin-bottom: 20px; transition: var(--transition); }
.footer-logo-img:hover { transform: scale(1.05); }
.footer p { margin-top: 20px; font-size: 0.9rem; color: var(--accent); letter-spacing: 1px; }

/* --- YÜZEN BUTONLAR --- */
.whatsapp-btn { position: fixed; bottom: 30px; left: 30px; background: #25d366; color: var(--white); width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 30px; z-index: 999; box-shadow: 0 5px 15px rgba(0,0,0,0.2); transition: var(--transition); }
.whatsapp-btn:hover { transform: scale(1.1); }
.scroll-top-btn { position: fixed; bottom: 30px; right: 30px; background: var(--black); color: var(--accent); width: 50px; height: 50px; border-radius: 4px; display: flex; align-items: center; justify-content: center; font-size: 20px; z-index: 999; border: 1px solid var(--accent); cursor: pointer; box-shadow: 0 5px 15px rgba(0,0,0,0.2); transition: var(--transition); opacity: 0; visibility: hidden; transform: translateY(20px); }
.scroll-top-btn:hover { background: var(--accent); color: var(--black); transform: translateY(-5px); }
.scroll-top-btn.show { opacity: 1; visibility: visible; transform: translateY(0); }

/* --- AŞAĞI KAYDIRINCA KÜÇÜLEN NAVBAR --- */
.main-header.scrolled { background: var(--black); }
.main-header.scrolled .navbar { padding: 5px 40px; }
.main-header.scrolled .nav-logo { height: 65px; }

/* --- MOBİL UYUMLULUK (RESPONSIVE) --- */
@media (max-width: 992px) {
    .menu-toggle { display: block; }
    .navbar { padding: 15px 20px; } 
    .nav-links { position: absolute; top: 100%; left: 0; width: 100%; background: var(--black); flex-direction: column; padding: 20px 0; text-align: center; box-shadow: 0 10px 10px rgba(0,0,0,0.5); display: none; }
    .nav-links.active { display: flex; }
    .hero h1 { font-size: 2.5rem; }
}

@media (max-width: 576px) {
    .section { padding: 60px 0; }
    .project-card { height: 350px; }
    .contact-grid { grid-template-columns: 1fr; }
    .nav-logo { height: 65px; }
    .footer-logo-img { height: 80px; }
    .whatsapp-btn { bottom: 20px; left: 20px; width: 50px; height: 50px; font-size: 24px; }
    .scroll-top-btn { bottom: 20px; right: 20px; width: 45px; height: 45px; font-size: 18px; }
    .main-header.scrolled .nav-logo { height: 50px; }
}