/* --- TEMEL AYARLAR VE DEĞİŞKENLER --- */
:root {
    --primary-color: #000000;
    --secondary-color: #ffc900;
    --background-color: #ffffff;
    --light-gray-bg: #f8f9fa;
    --text-color: #333;
    --text-light: #555;
    --white-color: #ffffff;
    --border-radius: 12px;
    --border-radius-large: 24px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    overflow-x: hidden;
}
.container { max-width: 1200px; width: 90%; margin: 0 auto; }

/* --- GENEL STİLLER --- */
.btn { padding: 10px 25px; border-radius: 8px; text-decoration: none; font-weight: 600; transition: all 0.3s ease; }
.btn-primary { background-color: var(--primary-color); color: var(--white-color); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2); }
.btn-secondary { background-color: var(--primary-color); color: var(--white-color); display: inline-block; margin-top: 25px; padding: 12px 30px; border-radius: 50px; font-size: 1.1rem; }
.btn-secondary:hover { background-color: #333; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.2); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-label { display: inline-block; padding: 6px 16px; background-color: #eee; color: #555; border-radius: 20px; font-size: 0.8rem; font-weight: 600; margin-bottom: 20px; }
.section-header h2 { font-size: 2.5rem; font-weight: 800; max-width: 700px; margin: 0 auto; line-height: 1.4; }
.underline-yellow { position: relative; display: inline-block; }
.underline-yellow::after { content: ''; position: absolute; bottom: -5px; left: 0; width: 100%; height: 8px; background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 12"><path d="M0 6 C 25 12, 75 0, 100 6" stroke="%23ffc900" stroke-width="4" fill="none" stroke-linecap="round"/></svg>'); background-size: 100% 100%; background-repeat: no-repeat; }

/* --- HEADER / NAVİGASYON --- */
header { padding: 25px 0; position: relative; z-index: 1000; }
nav { display: flex; justify-content: space-between; align-items: center; }
.logo { font-weight: 700; font-size: 1.2rem; color: var(--primary-color); text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links ul { display: flex; list-style: none; gap: 30px; }
.nav-links ul li a { text-decoration: none; color: var(--text-color); font-weight: 500; transition: color 0.3s ease; }
.nav-links ul li a:hover { color: var(--primary-color); }
.hamburger { display: none; cursor: pointer; }
.hamburger .line { width: 25px; height: 3px; background-color: var(--primary-color); margin: 5px 0; transition: all 0.3s ease; }

/* --- BÖLÜM 1: GİRİŞ EKRANI --- */
.hero-section { min-height: 90vh; display: flex; align-items: center; }
.hero { display: flex; align-items: center; justify-content: space-between; padding: 20px 0 80px 0; gap: 50px; }
.hero-text { flex: 1; max-width: 520px; }
.hero-text h1 { font-size: 3rem; font-weight: 800; line-height: 1.3; margin-bottom: 30px; }
.hero-text h1 .highlight::before { content: ''; position: absolute; left: -15px; top: -5px; width: 120%; height: 110%; background-color: var(--secondary-color); border-radius: 50%; z-index: -1; opacity: 0.8; }
.hero-text ul { list-style: none; padding-left: 30px; }
.hero-text ul li { margin-bottom: 15px; position: relative; font-size: 1.1rem; line-height: 1.6; }
.hero-text ul li::before { content: '✔'; color: var(--secondary-color); font-weight: 700; position: absolute; left: -30px; top: 5px; }
.hero-animation { flex: 1; position: relative; min-height: 480px; display: flex; align-items: center; justify-content: center; }
.animation-bg { position: absolute; width: 100%; height: 90%; background-color: var(--secondary-color); border-radius: var(--border-radius); z-index: 1; opacity: 0; transform: scale(0.8); transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.main-card { position: absolute; background-color: var(--primary-color); color: var(--white-color); padding: 20px 25px; border-radius: var(--border-radius); z-index: 3; top: 50px; left: 20px; width: 75%; box-shadow: 0 10px 20px rgba(0,0,0,0.15); opacity: 0; transform: translateX(-50px); transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s; }
.car-image { position: relative; z-index: 4; max-width: 100%; filter: drop-shadow(0 10px 15px rgba(0,0,0,0.3)); opacity: 0; transform: translateX(100px); transition: all 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.4s; }
.popup-card { position: absolute; background-color: var(--white-color); padding: 15px; border-radius: var(--border-radius); border: 2px solid var(--secondary-color); z-index: 5; top: 100px; right: 10px; width: 220px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); opacity: 0; transform: translateY(-30px) scale(0.8); transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.8s; }
.info-bar { position: absolute; bottom: 40px; left: 50%; width: 90%; background-color: var(--white-color); border-radius: var(--border-radius); padding: 10px 15px; display: flex; justify-content: space-between; align-items: center; z-index: 5; box-shadow: 0 5px 15px rgba(0,0,0,0.1); opacity: 0; transform: translate(-50%, 50px); transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 1s; }
.hero-animation.animate .animation-bg, .hero-animation.animate .main-card, .hero-animation.animate .car-image, .hero-animation.animate .popup-card, .hero-animation.animate .info-bar { opacity: 1; transform: none; }
.hero-animation.animate .info-bar { transform: translateX(-50%); }

/* --- BÖLÜM 2: NASIL ÇALIŞIR --- */
#how-it-works { min-height: 100vh; padding: 100px 0; display: flex; align-items: center; }
.how-it-works-content { display: flex; align-items: center; justify-content: center; gap: 60px; }
.image-card { flex-basis: 350px; height: 450px; border-radius: var(--border-radius); position: relative; overflow: hidden; box-shadow: 0 15px 30px rgba(0,0,0,0.1); background: url('https://images.unsplash.com/photo-1552519507-da3b142c6e3d?q=80&w=2070&auto=format&fit=crop') no-repeat center center/cover; display: flex; flex-direction: column; justify-content: flex-end; padding: 30px; }
.card-text { position: relative; z-index: 2; color: var(--white-color); text-shadow: 0 2px 5px rgba(0,0,0,0.3); }
.steps-list { flex-basis: 50%; }
.step-item { display: flex; align-items: center; gap: 25px; margin-bottom: 30px; }
.step-number { flex-shrink: 0; width: 50px; height: 50px; background-color: var(--secondary-color); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; font-weight: 700; color: var(--primary-color); }
.btn-call { background-color: var(--primary-color); color: var(--white-color); border-radius: 50px; padding: 15px 35px; font-size: 1.1rem; display: inline-block; margin-top: 20px; float: right; }
.btn-call:hover { transform: translateY(-2px); box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2); }

/* --- BÖLÜM 3: HİZMETLERİMİZ --- */
#our-services { min-height: 100vh; padding: 100px 0; background-color: var(--light-gray-bg); display: flex; align-items: center; }
.services-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.service-item { background-color: var(--white-color); padding: 30px; border-radius: var(--border-radius); box-shadow: 0 5px 15px rgba(0,0,0,0.05); text-align: center; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.service-item:hover { transform: translateY(-8px); box-shadow: 0 12px 25px rgba(0,0,0,0.1); }
.service-icon { width: 60px; height: 60px; background-color: var(--secondary-color); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 25px; color: var(--primary-color); }
.service-icon svg { width: 32px; height: 32px; }
.service-item h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 15px; color: var(--primary-color); }
.service-item p { font-size: 0.95rem; line-height: 1.6; color: var(--text-light); }

/* --- FOOTER --- */
footer { background-color: var(--background-color); }
.pre-footer { background-color: var(--light-gray-bg); padding: 30px 0; }
.pre-footer .container { display: flex; justify-content: space-between; align-items: center; }
.pre-footer h3 { font-size: 1.5rem; font-weight: 700; }
.btn-dark { background-color: var(--primary-color); color: var(--white-color); border-radius: 50px; padding: 12px 25px; }
.footer-container { padding-top: 100px; padding-bottom: 30px; }
.footer-cta { background-color: var(--primary-color); color: var(--white-color); border-radius: var(--border-radius-large); padding: 60px; text-align: center; margin-top: -160px; }
.footer-cta h2 { font-size: 3rem; font-weight: 700; max-width: 600px; margin: 0 auto 30px auto; line-height: 1.3; }
.btn-light { background-color: var(--white-color); color: var(--primary-color); border-radius: 50px; padding: 15px 35px; font-size: 1.1rem; }
.main-footer { display: flex; justify-content: space-between; padding: 60px 0; }
.footer-brand h4 { font-size: 1.5rem; font-weight: 700; }
.footer-links { display: flex; gap: 80px; }
.link-column h5 { font-size: 1.1rem; font-weight: 600; margin-bottom: 20px; }
.link-column ul { list-style: none; }
.link-column ul li { margin-bottom: 12px; }
.link-column ul li a { color: var(--text-light); text-decoration: none; transition: color 0.3s ease; }
.link-column ul li a:hover { color: var(--primary-color); }
.sub-footer { border-top: 1px solid #eee; padding-top: 30px; }
.legal-links { display: flex; gap: 20px; margin-bottom: 20px; }
.legal-links a { color: var(--text-light); text-decoration: none; font-size: 0.9rem; }
.info-text { margin-bottom: 30px; }
.info-text p { color: #888; font-size: 0.8rem; line-height: 1.6; }
.credits { text-align: right; }
.credits p { color: var(--text-light); font-size: 0.9rem; }
.credits a { color: var(--primary-color); font-weight: 600; text-decoration: none; }

/* --- KAYDIRMA ANİMASYONLARI --- */
.anim-fade-up { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.anim-fade-up.visible { opacity: 1; transform: translateY(0); }
.how-it-works-content .anim-fade-up:nth-of-type(1) { transition-delay: 0.2s; }
.how-it-works-content .anim-fade-up:nth-of-type(2) { transition-delay: 0.4s; }
#our-services .anim-fade-up:nth-of-type(1) { transition-delay: 0.2s; }
#our-services .anim-fade-up:nth-of-type(2) { transition-delay: 0.4s; }
#our-services .anim-fade-up:nth-of-type(3) { transition-delay: 0.6s; }
#our-services .anim-fade-up:nth-of-type(4) { transition-delay: 0.8s; }

/* --- MOBİL UYUMLULUK --- */
@media (max-width: 992px) {
    .hamburger { display: block; z-index: 1001; }
    .nav-links { position: fixed; top: 0; left: 0; width: 100%; height: 100vh; background-color: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); flex-direction: column; justify-content: center; clip-path: circle(0% at top right); transition: clip-path 0.6s ease; }
    .nav-links.active { clip-path: circle(150% at top right); }
    .nav-links ul { flex-direction: column; gap: 40px; }
    .nav-links ul li a { font-size: 1.5rem; }
    .nav-buttons { margin-top: 40px; }
    .hamburger.active .line:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .hamburger.active .line:nth-child(2) { opacity: 0; }
    .hamburger.active .line:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
    .hero { flex-direction: column; text-align: center; }
    .hero-text { order: 2; }
    .hero-animation { order: 1; margin-bottom: 50px; }
    .how-it-works, #our-services { padding: 80px 0; }
    .section-header h2 { font-size: 2rem; }
    .how-it-works-content { flex-direction: column; gap: 40px; }
    .btn-call { float: none; display: block; text-align: center; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .pre-footer .container { flex-direction: column; gap: 20px; text-align: center; }
    .footer-cta h2 { font-size: 2.2rem; }
    .main-footer { flex-direction: column; gap: 40px; text-align: center; }
    .footer-links { justify-content: center; gap: 60px; }
}
@media (max-width: 576px) {
    .hero-text h1 { font-size: 2.2rem; }
    .section-header h2 { font-size: 1.8rem; }
    .services-grid { grid-template-columns: 1fr; }
    .footer-cta { padding: 40px 25px; }
    .footer-cta h2 { font-size: 1.8rem; }
    .footer-links { flex-direction: column; gap: 30px; }
    .sub-footer, .credits { text-align: center; }
    .legal-links { justify-content: center; }
    .credits { margin-top: 20px; }
}