/* ============================================
   GOOGLE FONTS & MODERN TASARIM
============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ============================================
   CSS DEĞİŞKENLERİ - MODERN PALET
============================================ */
:root {
    --primary-color: #003f5c;
    --primary-dark: #002a3e;
    --primary-light: #e8f0fe;
    --accent-color: #ff6b35;
    --accent-hover: #e85a2a;
    --secondary-color: #2f4b7c;
    --text-dark: #1a2a3a;
    --text-light: #6c757d;
    --bg-light: #f8f9fc;
    --border-color: #e9ecef;
    --white: #ffffff;
    --black: #000000;
    --success: #28a745;
    --danger: #dc3545;
    --shadow-sm: 0 5px 20px rgba(0,0,0,0.03);
    --shadow-md: 0 15px 30px rgba(0,0,0,0.05);
    --shadow-lg: 0 25px 50px rgba(0,0,0,0.07);
    --font-main: 'Inter', sans-serif;
    --transition: all 0.3s ease;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --border-radius-xl: 40px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); font-size: 16px; line-height: 1.6; color: var(--text-dark); background: var(--white); }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* ============================================
   BUTTONS - DAHA MODERN
============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 50px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-sm);
}
.btn-primary { background: var(--accent-color); color: var(--white); }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.btn-secondary { background: var(--primary-color); color: var(--white); }
.btn-secondary:hover { background: var(--primary-dark); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--white); border: 2px solid rgba(255,255,255,0.5); }
.btn-outline:hover { background: var(--white); color: var(--primary-color); border-color: var(--white); }
.text-center { text-align: center; }

/* ============================================
   HEADER - TEMİZ VE MODERN
============================================ */
.site-header { position: sticky; top: 0; z-index: 1000; background: var(--white); box-shadow: 0 2px 20px rgba(0,0,0,0.02); border-bottom: 1px solid var(--border-color); }
.header-top { padding: 20px 0; }
.header-top-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.logo-wrapper { display: flex; align-items: center; gap: 15px; }
.logo-img { max-height: 45px; width: auto; }
.logo-text .company-name { font-size: 1.5rem; font-weight: 700; color: var(--primary-color); letter-spacing: -0.5px; line-height: 1.2; }
.logo-text .company-slogan { font-size: 0.8rem; color: var(--text-light); letter-spacing: 2px; font-weight: 500; }
.header-right { display: flex; align-items: center; gap: 30px; }
.search-form { display: flex; align-items: center; border: 1px solid var(--border-color); border-radius: 50px; background: var(--bg-light); overflow: hidden; transition: var(--transition); }
.search-form:focus-within { border-color: var(--primary-color); background: var(--white); box-shadow: 0 0 0 4px rgba(0, 63, 92, 0.1); }
.search-input { border: none; outline: none; padding: 12px 20px; font-size: 0.9rem; font-family: var(--font-main); width: 240px; background: transparent; }
.search-btn { background: transparent; border: none; color: var(--primary-color); padding: 12px 20px; cursor: pointer; font-size: 1rem; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.search-btn:hover { color: var(--accent-color); }
.header-phone a { display: flex; align-items: center; gap: 8px; color: var(--primary-color); font-weight: 700; font-size: 1.1rem; white-space: nowrap; }
.header-phone a i { font-size: 1.2rem; color: var(--accent-color); }

.mobile-toggle { display: none; flex-direction: column; justify-content: space-between; width: 30px; height: 22px; background: transparent; border: none; cursor: pointer; padding: 0; }
.mobile-toggle span { width: 100%; height: 3px; background: var(--primary-color); border-radius: 3px; transition: var(--transition); }

.main-navigation { background: var(--white); border-top: 1px solid var(--border-color); }
.nav-menu { display: flex; align-items: center; margin: 0; padding: 0; }
.nav-menu li { position: relative; }
.nav-menu > li > a { display: block; padding: 18px 24px; color: var(--text-dark); font-weight: 600; font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.5px; transition: var(--transition); border-bottom: 3px solid transparent; }
.nav-menu > li > a i { font-size: 0.7rem; margin-left: 5px; color: var(--text-light); }
.nav-menu > li.active > a, .nav-menu > li > a:hover { color: var(--accent-color); border-bottom-color: var(--accent-color); }

.dropdown-menu { position: absolute; top: 100%; left: 0; background: var(--white); min-width: 280px; box-shadow: var(--shadow-lg); border-radius: 0 0 var(--border-radius) var(--border-radius); opacity: 0; visibility: hidden; transform: translateY(10px); transition: var(--transition); z-index: 100; border: 1px solid var(--border-color); border-top: none; }
.nav-menu li:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu li a { display: block; padding: 12px 24px; color: var(--text-dark); border-bottom: 1px solid var(--border-color); font-size: 0.9rem; transition: var(--transition); }
.dropdown-menu li:last-child a { border-bottom: none; }
.dropdown-menu li a:hover { background: var(--bg-light); color: var(--accent-color); padding-left: 30px; }

/* ============================================
   HERO SECTION
============================================ */
.hero-section { position: relative; height: 600px; }
.hero-slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-size: cover; background-position: center; display: flex; align-items: center; }
.hero-content { max-width: 750px; color: var(--white); }
.hero-content h1 { font-size: 3.5rem; font-weight: 700; margin-bottom: 24px; line-height: 1.2; letter-spacing: -1px; }
.hero-content p { font-size: 1.2rem; margin-bottom: 40px; opacity: 0.9; font-weight: 400; }
.hero-buttons { display: flex; gap: 20px; flex-wrap: wrap; }

/* ============================================
   SECTIONS
============================================ */
.section-header { margin-bottom: 60px; }
.section-header h2 { font-size: 2.5rem; font-weight: 700; color: var(--primary-color); margin-bottom: 16px; letter-spacing: -1px; }
.section-header p { color: var(--text-light); font-size: 1.2rem; }

.services-overview { padding: 100px 0; background: var(--bg-light); }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.service-card { background: var(--white); padding: 40px 30px; border-radius: var(--border-radius-lg); text-align: left; box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid var(--border-color); }
.service-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-icon { width: 60px; height: 60px; background: rgba(255, 107, 53, 0.1); border-radius: 20px; display: flex; align-items: center; justify-content: center; margin-bottom: 30px; }
.service-icon i { font-size: 1.8rem; color: var(--accent-color); }
.service-card h3 { font-size: 1.4rem; margin-bottom: 15px; color: var(--text-dark); font-weight: 600; }
.service-card p { color: var(--text-light); margin-bottom: 25px; }
.service-link { color: var(--accent-color); font-weight: 600; display: inline-flex; align-items: center; gap: 8px; }
.service-link:hover { gap: 15px; color: var(--primary-color); }

.about-preview { padding: 100px 0; }
.about-preview-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-preview-content h2 { font-size: 2.5rem; font-weight: 700; color: var(--primary-color); margin-bottom: 30px; letter-spacing: -1px; }
.about-preview-content p { margin-bottom: 30px; color: var(--text-light); font-size: 1.1rem; }
.about-features { margin-bottom: 40px; }
.about-features li { display: flex; align-items: center; gap: 15px; margin-bottom: 15px; font-weight: 500; }
.about-features li i { color: var(--accent-color); font-size: 1.4rem; }
.about-preview-image img { border-radius: var(--border-radius-lg); box-shadow: var(--shadow-lg); width: 100%; }

.cta-section { padding: 80px 0; background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%); }
.cta-content { text-align: center; color: var(--white); }
.cta-content h2 { font-size: 2.8rem; margin-bottom: 20px; font-weight: 700; letter-spacing: -1px; }
.cta-content p { font-size: 1.2rem; margin-bottom: 40px; opacity: 0.9; }

/* ============================================
   PAGE BANNER & CONTENT
============================================ */
.page-banner { background-size: cover; background-position: center; padding: 120px 0; position: relative; color: var(--white); }
.page-banner .container { position: relative; z-index: 2; }
.page-banner h1 { font-size: 3.5rem; font-weight: 700; margin-bottom: 15px; letter-spacing: -1px; }
.page-banner p { font-size: 1.3rem; opacity: 0.9; }
.page-content { padding: 80px 0; }
.content-card { background: var(--white); padding: 50px; border-radius: var(--border-radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); }
.content-card h2 { color: var(--primary-color); margin-bottom: 30px; font-size: 2.2rem; font-weight: 700; }
.service-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px 30px; margin: 30px 0; }
.service-list li { position: relative; padding-left: 30px; }
.service-list li::before { content: '\f00c'; font-family: 'Font Awesome 6 Free'; font-weight: 900; position: absolute; left: 0; color: var(--accent-color); }

.certificate-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 30px; }
.certificate-card { background: var(--white); border-radius: var(--border-radius-lg); padding: 40px; box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid var(--border-color); }
.certificate-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-top: 4px solid var(--accent-color); }
.certificate-card h3 { color: var(--primary-color); font-size: 1.5rem; margin-bottom: 20px; }
.certificate-card p { color: var(--text-light); margin-bottom: 25px; }
.read-more { color: var(--accent-color); font-weight: 600; display: inline-flex; align-items: center; gap: 5px; }
.read-more:hover { gap: 12px; }

/* ============================================
   CONTACT PAGE
============================================ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 40px; margin-bottom: 40px; }
.contact-info-card { background: var(--primary-color); color: var(--white); padding: 50px 40px; border-radius: var(--border-radius-lg); }
.contact-info-card h3 { font-size: 2rem; margin-bottom: 35px; }
.contact-info-card address p { margin-bottom: 20px; display: flex; align-items: flex-start; gap: 15px; font-size: 1.1rem; }
.contact-info-card address i { width: 24px; margin-top: 4px; color: var(--accent-color); }
.contact-social { margin-top: 40px; display: flex; gap: 15px; flex-wrap: wrap; }
.contact-social a { display: flex; align-items: center; justify-content: center; width: 50px; height: 50px; background: rgba(255,255,255,0.1); border-radius: 50%; color: var(--white); font-size: 1.3rem; transition: var(--transition); }
.contact-social a:hover { background: var(--accent-color); transform: translateY(-5px); }
.contact-social a.whatsapp-btn { width: auto; padding: 0 25px; border-radius: 50px; background: #25D366; gap: 10px; }
.contact-form-card { background: var(--white); padding: 50px 40px; border-radius: var(--border-radius-lg); box-shadow: var(--shadow-md); border: 1px solid var(--border-color); }
.contact-form-card h3 { font-size: 2rem; color: var(--primary-color); margin-bottom: 35px; }
.form-group { margin-bottom: 25px; }
.form-group label { display: block; margin-bottom: 10px; font-weight: 600; color: var(--text-dark); }
.form-group input, .form-group textarea { width: 100%; padding: 15px; border: 1.5px solid var(--border-color); border-radius: var(--border-radius); font-family: var(--font-main); font-size: 1rem; transition: var(--transition); background: var(--bg-light); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent-color); background: var(--white); box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1); }
.form-message { margin-top: 25px; padding: 15px; border-radius: var(--border-radius); display: none; }
.form-message.success { display: block; background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.map-container { border-radius: var(--border-radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); height: 450px; border: 1px solid var(--border-color); }
.map-container iframe { width: 100%; height: 100%; border: 0; }

/* ============================================
   FOOTER - MODERN
============================================ */
.site-footer { background: var(--primary-dark); color: #adb5bd; }
.footer-main { padding: 80px 0 50px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 50px; }
.footer-col h4 { color: var(--white); font-size: 1.3rem; margin-bottom: 30px; position: relative; padding-bottom: 15px; }
.footer-col h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 40px; height: 3px; background: var(--accent-color); }
.footer-col p { margin-bottom: 25px; line-height: 1.7; }
.footer-social { display: flex; gap: 12px; }
.footer-social a { display: flex; align-items: center; justify-content: center; width: 45px; height: 45px; background: rgba(255,255,255,0.05); border-radius: 50%; color: var(--white); transition: var(--transition); }
.footer-social a:hover { background: var(--accent-color); transform: translateY(-5px); }
.footer-links ul li, .footer-belgeler ul li { margin-bottom: 15px; }
.footer-links ul li a, .footer-belgeler ul li a { color: #adb5bd; transition: var(--transition); }
.footer-links ul li a:hover, .footer-belgeler ul li a:hover { color: var(--accent-color); padding-left: 5px; }
.contact-list li { display: flex; align-items: flex-start; gap: 15px; margin-bottom: 20px; }
.contact-list li i { width: 20px; margin-top: 4px; color: var(--accent-color); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.05); padding: 30px 0; text-align: center; }

/* ============================================
   RESPONSIVE
============================================ */
@media (max-width: 992px) {
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-content h1 { font-size: 2.8rem; }
    .about-preview-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .mobile-toggle { display: flex; }
    .header-right { display: none; }
    .logo-text .company-name { font-size: 1.2rem; }
    .main-navigation { display: none; }
    .main-navigation.active { display: block; }
    .nav-menu { flex-direction: column; align-items: stretch; }
    .dropdown-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; background: var(--bg-light); border-radius: 0; display: none; border: none; }
    .nav-menu li:hover .dropdown-menu, .nav-menu li.active .dropdown-menu { display: block; }
    .hero-section { height: 500px; }
    .hero-content h1 { font-size: 2.2rem; }
    .section-header h2 { font-size: 2rem; }
    .footer-grid { grid-template-columns: 1fr; }
    .page-banner h1 { font-size: 2.5rem; }
    .certificate-grid { grid-template-columns: 1fr; }
}