/* --- Variables --- */
:root {
    --color-navy: #003366;      /* Kurumsal Lacivert */
    --color-navy-dark: #002244;
    --color-blue-light: #e6f0fa;
    --color-white: #ffffff;
    --color-text: #333333;
    --color-grey: #f5f5f5;
    
    --font-heading: 'Merriweather', serif;
    --font-body: 'Open Sans', sans-serif;
    
    --radius: 4px;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
}

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

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-white);
    line-height: 1.6;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }
img { max-width: 100%; display: block; border-radius: var(--radius); }

/* --- Top Strip --- */
.info-strip { background-color: var(--color-grey); font-size: 0.8rem; padding: 8px 0; border-bottom: 1px solid #ddd; }
.strip-content { display: flex; justify-content: space-between; width: 90%; max-width: 1200px; margin: 0 auto; }
.strip-content a { color: var(--color-navy); font-weight: 600; }

/* --- Header --- */
.classic-header { background: var(--color-white); padding: 20px 0; box-shadow: var(--shadow); position: sticky; top: 0; z-index: 100; }
.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.header-flex { display: flex; justify-content: space-between; align-items: center; }

.logo { font-family: var(--font-heading); font-size: 1.8rem; color: #333; }
.bold-blue { color: var(--color-navy); font-weight: 700; }

.clean-nav ul { display: flex; gap: 30px; align-items: center; }
.clean-nav a { font-weight: 600; color: #555; font-size: 0.95rem; }
.clean-nav a:hover, .clean-nav a.active { color: var(--color-navy); }

.btn-navy { background: var(--color-navy); color: #fff !important; padding: 10px 25px; border-radius: var(--radius); font-weight: 600; }
.btn-navy:hover { background: var(--color-navy-dark); }

.mobile-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; }

/* --- Mobile Drawer --- */
.mobile-drawer {
    position: fixed; top: 0; right: -100%; width: 250px; height: 100%;
    background: var(--color-white); z-index: 200; box-shadow: -2px 0 5px rgba(0,0,0,0.1);
    display: flex; flex-direction: column; padding: 40px; gap: 20px; transition: 0.3s ease;
}
.mobile-drawer.active { right: 0; }
.close-drawer { align-self: flex-end; font-size: 1.5rem; background: none; border: none; cursor: pointer; }
.mobile-drawer a { font-weight: 600; color: var(--color-navy); border-bottom: 1px solid #eee; padding-bottom: 10px; }

/* --- Hero Split --- */
.hero-split { background-color: var(--color-blue-light); padding: 60px 0; }
.hero-flex-container { display: flex; align-items: center; gap: 50px; }

.hero-text { flex: 1; }
.badge-blue { background: var(--color-navy); color: #fff; padding: 5px 10px; font-size: 0.8rem; border-radius: 4px; font-weight: 600; display: inline-block; margin-bottom: 15px; }
.hero-text h1 { font-family: var(--font-heading); font-size: 3rem; color: var(--color-navy); line-height: 1.2; margin-bottom: 20px; }
.hero-text p { font-size: 1.1rem; color: #555; margin-bottom: 30px; }
.features-list .f-item { margin-bottom: 10px; font-weight: 600; color: var(--color-navy); }

.hero-form-wrapper { flex: 1; display: flex; justify-content: flex-end; }
.hero-form { background: var(--color-white); padding: 30px; border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; max-width: 400px; }
.hero-form h3 { color: var(--color-navy); margin-bottom: 5px; }
.hero-form p { font-size: 0.9rem; color: #777; margin-bottom: 20px; }
.input-wrap { margin-bottom: 15px; }
.input-wrap input, .input-wrap select { width: 100%; padding: 12px; border: 1px solid #ddd; border-radius: 4px; font-family: var(--font-body); }
.btn-full-blue { width: 100%; background: var(--color-navy); color: #fff; padding: 15px; border: none; border-radius: 4px; font-weight: bold; cursor: pointer; transition: 0.3s; }
.btn-full-blue:hover { background: var(--color-navy-dark); }

/* --- Tabs Section --- */
.services-tabs-section { padding: 80px 0; background: var(--color-white); }
.section-header { text-align: center; margin-bottom: 40px; }
.section-header h2 { font-family: var(--font-heading); font-size: 2.2rem; color: var(--color-navy); margin-bottom: 10px; }
.line-center { width: 60px; height: 3px; background: var(--color-navy); margin: 0 auto; }

.tabs-wrapper { max-width: 900px; margin: 0 auto; }
.tab-buttons { display: flex; justify-content: center; gap: 10px; margin-bottom: 30px; border-bottom: 1px solid #ddd; }
.tab-btn { background: none; border: none; padding: 15px 30px; font-family: var(--font-heading); font-size: 1.1rem; color: #777; cursor: pointer; border-bottom: 3px solid transparent; transition: 0.3s; }
.tab-btn:hover { color: var(--color-navy); }
.tab-btn.active { color: var(--color-navy); border-bottom-color: var(--color-navy); font-weight: bold; }

.tab-content { display: none; animation: fadeIn 0.5s; }
.tab-content.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.content-flex { display: flex; gap: 40px; align-items: center; background: var(--color-grey); padding: 40px; border-radius: var(--radius); }
.content-flex img { width: 40%; object-fit: cover; }
.content-flex .text { width: 60%; }
.content-flex h3 { font-family: var(--font-heading); color: var(--color-navy); margin-bottom: 15px; font-size: 1.5rem; }
.content-flex a { color: var(--color-navy); font-weight: bold; margin-top: 20px; display: inline-block; }

/* --- About Grid --- */
.page-spacing { padding: 60px 0; }
.text-center-header { text-align: center; margin-bottom: 50px; }
.text-center-header h1 { font-family: var(--font-heading); color: var(--color-navy); }

.grid-3-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.info-card { background: var(--color-white); padding: 30px; border: 1px solid #eee; border-radius: var(--radius); }
.info-card.highlight { background: var(--color-navy); color: #fff; border: none; }
.info-card h3 { font-family: var(--font-heading); margin-bottom: 15px; font-size: 1.3rem; }

.stats-banner { display: flex; justify-content: space-around; background: var(--color-grey); padding: 40px; margin-top: 50px; border-radius: var(--radius); text-align: center; }
.stat strong { font-size: 2.5rem; color: var(--color-navy); display: block; font-family: var(--font-heading); }

/* --- References --- */
.ref-list { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-bottom: 50px; }
.ref-item { background: var(--color-white); border-left: 4px solid var(--color-navy); padding: 20px; box-shadow: var(--shadow); }
.ref-item h4 { font-family: var(--font-heading); margin-bottom: 5px; color: var(--color-navy); }

.user-reviews { background: var(--color-blue-light); padding: 40px; border-radius: var(--radius); }
.review-card { background: #fff; padding: 20px; margin-bottom: 20px; border-radius: var(--radius); }
.review-card span { display: block; margin-top: 10px; font-weight: bold; color: var(--color-navy); }

/* --- Contact --- */
.contact-grid-layout { display: grid; grid-template-columns: 1fr 1.5fr; gap: 50px; }
.contact-details { background: var(--color-navy); color: #fff; padding: 40px; border-radius: var(--radius); }
.contact-details h2 { font-family: var(--font-heading); margin-bottom: 20px; }
.detail-item { margin-bottom: 20px; }
.detail-item strong { display: block; margin-bottom: 5px; opacity: 0.8; }
.detail-item a { color: #fff; }
.map-placeholder { background: rgba(255,255,255,0.1); height: 200px; display: flex; align-items: center; justify-content: center; margin-top: 30px; }

.clean-form .form-group { margin-bottom: 20px; }
.clean-form label { display: block; margin-bottom: 5px; font-weight: 600; }
.clean-form input, .clean-form select, .clean-form textarea { width: 100%; padding: 12px; border: 1px solid #ccc; border-radius: 4px; }

/* --- Legal --- */
.policy-content { max-width: 800px; margin: 0 auto; background: #fff; padding: 40px; border: 1px solid #eee; }
.policy-content h1 { font-family: var(--font-heading); color: var(--color-navy); }
.policy-content h3 { color: var(--color-navy); margin-top: 30px; margin-bottom: 10px; }

/* --- Footer --- */
.classic-footer { background: #f0f0f0; padding: 60px 0 20px; margin-top: auto; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.f-about h4, .f-links h4, .f-contact h4 { font-family: var(--font-heading); color: var(--color-navy); margin-bottom: 15px; }
.f-links a { display: block; margin-bottom: 10px; color: #555; }
.footer-bottom { text-align: center; border-top: 1px solid #ddd; padding-top: 20px; font-size: 0.9rem; color: #777; }

@media (max-width: 992px) {
    .clean-nav { display: none; }
    .mobile-toggle { display: block; }
    .hero-flex-container { flex-direction: column; text-align: center; }
    .hero-form-wrapper { width: 100%; justify-content: center; }
    .content-flex, .grid-3-col, .ref-list, .contact-grid-layout, .footer-grid { grid-template-columns: 1fr; flex-direction: column; }
    .content-flex img { width: 100%; margin-bottom: 20px; }
    .content-flex .text { width: 100%; }
}