/* --- Değişkenler --- */
:root {
    --color-navy: #1a237e;      /* Kurumsal Lacivert */
    --color-navy-dark: #000051;
    --color-yellow: #fbc02d;    /* Güneş Sarısı / Altın */
    --color-yellow-dark: #c49000;
    --color-white: #ffffff;
    --color-light: #f5f5f5;
    --color-text: #212121;
    --color-grey: #757575;
    
    --font-heading: 'Titillium Web', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
    --radius: 4px;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--color-light);
    color: var(--color-text);
    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); }

/* --- Biz Bar --- */
.biz-bar { background-color: #eee; color: var(--color-text); padding: 5px 0; font-size: 0.8rem; border-bottom: 1px solid #ddd; }
.bar-flex { display: flex; justify-content: space-between; align-items: center; }
.bar-right a { color: var(--color-navy); font-weight: bold; }

/* --- Header --- */
.navy-header {
    background-color: var(--color-white);
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky; top: 0; z-index: 1000;
}

.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.header-content { display: flex; justify-content: space-between; align-items: center; }

.logo { font-family: var(--font-heading); font-size: 1.8rem; font-weight: 700; color: var(--color-navy); letter-spacing: 1px; }
.yellow-text { color: var(--color-yellow); }

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

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

.mobile-toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.bar { width: 30px; height: 3px; background-color: var(--color-navy); }

/* --- Mobile Menu --- */
.mobile-menu {
    position: fixed; top: 0; right: -100%; width: 280px; height: 100%;
    background-color: var(--color-navy); z-index: 2000;
    display: flex; flex-direction: column; padding: 40px; gap: 20px;
    transition: 0.4s ease; border-left: 4px solid var(--color-yellow);
}
.mobile-menu.active { right: 0; }
.close-menu { align-self: flex-end; font-size: 2rem; color: var(--color-white); background: none; border: none; cursor: pointer; }
.mobile-menu a { font-family: var(--font-heading); font-size: 1.2rem; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 10px; color: var(--color-white); font-weight: bold; }

/* --- Hero --- */
.hero { position: relative; height: 550px; display: flex; align-items: center; justify-content: flex-start; }
.hero-bg {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover; background-position: center; z-index: -2;
}
.hero-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(90deg, rgba(26,35,126,0.9) 0%, rgba(26,35,126,0.6) 50%, transparent 100%); z-index: -1; }

.hero-text { z-index: 1; color: var(--color-white); max-width: 600px; padding: 20px; margin-left: 5%; }
.tag-biz { background: var(--color-yellow); color: var(--color-navy-dark); padding: 5px 10px; font-weight: bold; font-size: 0.8rem; border-radius: 2px; display: inline-block; margin-bottom: 20px; }
.hero h1 { font-family: var(--font-heading); font-size: 3.5rem; line-height: 1.1; margin-bottom: 20px; }
.yellow-underline { border-bottom: 5px solid var(--color-yellow); }
.hero p { font-size: 1.2rem; margin-bottom: 30px; opacity: 0.9; }

.hero-actions { display: flex; gap: 15px; }
.btn { padding: 12px 30px; border-radius: var(--radius); font-weight: bold; cursor: pointer; border: none; font-family: var(--font-heading); transition: 0.3s; }
.btn-navy { background: var(--color-navy); color: #fff; }
.btn-navy:hover { background: var(--color-navy-dark); }
.btn-transparent { background: transparent; border: 2px solid #fff; color: #fff; }
.btn-transparent:hover { background: #fff; color: var(--color-navy); }

/* --- Grid --- */
.section-padding { padding: 80px 0; }
.section-head, .page-head { text-align: center; margin-bottom: 60px; }
.section-head h2, .page-head h1 { font-family: var(--font-heading); font-size: 2.5rem; color: var(--color-navy); margin-bottom: 10px; }
.navy-line { width: 80px; height: 4px; background: var(--color-navy); margin: 0 auto; }

.service-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.service-card { background: var(--color-white); padding: 40px 30px; border-radius: var(--radius); text-align: center; box-shadow: var(--shadow); transition: 0.3s; border-top: 5px solid transparent; }
.service-card:hover { transform: translateY(-5px); border-top-color: var(--color-yellow); }
.icon-box { font-size: 3rem; margin-bottom: 20px; }
.service-card h3 { font-family: var(--font-heading); font-size: 1.5rem; color: var(--color-navy); margin-bottom: 15px; }
.service-card p { color: var(--color-grey); margin-bottom: 25px; }
.read-more { color: var(--color-navy); font-weight: bold; font-family: var(--font-heading); }

/* --- Stats Banner --- */
.yellow-banner { background-color: var(--color-yellow); padding: 60px 0; margin-top: 50px; }
.stats-flex { display: flex; justify-content: space-around; text-align: center; flex-wrap: wrap; gap: 20px; }
.stat-item strong { display: block; font-family: var(--font-heading); font-size: 3.5rem; color: var(--color-navy-dark); line-height: 1; }
.stat-item span { font-weight: bold; color: var(--color-navy); font-size: 1.1rem; }

/* --- About & Split --- */
.split-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.text-block h2 { font-family: var(--font-heading); font-size: 2rem; color: var(--color-navy); margin-bottom: 20px; }
.biz-list { list-style: square; padding-left: 20px; margin-top: 20px; font-weight: 600; color: var(--color-navy); }
.image-block { position: relative; }
.image-block img { box-shadow: 20px 20px 0 var(--color-navy); border: 5px solid #fff; }
.img-caption { position: absolute; bottom: 20px; left: -20px; background: var(--color-yellow); color: var(--color-navy-dark); padding: 10px 20px; font-weight: bold; }

/* --- Testimonials --- */
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.testimonial-card { background: var(--color-white); padding: 30px; border-radius: var(--radius); box-shadow: var(--shadow); border-left: 5px solid var(--color-navy); }
.quote-icon { font-size: 3rem; color: var(--color-yellow); line-height: 0.5; margin-bottom: 10px; }
.testimonial-card p { font-style: italic; color: #555; margin-bottom: 20px; }
.client-info strong { display: block; color: var(--color-navy); font-family: var(--font-heading); }
.client-info span { font-size: 0.85rem; color: #888; }

/* --- Contact & Forms --- */
.contact-wrapper { display: grid; grid-template-columns: 1fr 1.5fr; gap: 50px; background: var(--color-white); padding: 50px; border-radius: var(--radius); box-shadow: var(--shadow); }
.contact-info h3 { font-family: var(--font-heading); color: var(--color-navy); margin-bottom: 20px; font-size: 1.8rem; }
.info-row { display: flex; align-items: center; gap: 15px; margin-bottom: 15px; color: #555; font-weight: 600; }
.icon { font-size: 1.5rem; }
.map-placeholder { background: #eee; height: 150px; display: flex; align-items: center; justify-content: center; color: #999; margin-top: 30px; border-radius: var(--radius); }

.biz-form .form-group { margin-bottom: 20px; }
.biz-form label { display: block; margin-bottom: 5px; font-weight: bold; color: var(--color-navy); }
.biz-form input, .biz-form select, .biz-form textarea { width: 100%; padding: 12px; border: 1px solid #ccc; background: #fafafa; font-family: var(--font-body); border-radius: 4px; }
.biz-form input:focus { border-color: var(--color-navy); outline: none; }
.full-width { width: 100%; }

/* --- Legal --- */
.legal-doc { max-width: 800px; margin: 0 auto; background: var(--color-white); padding: 60px; border-radius: var(--radius); box-shadow: var(--shadow); }
.legal-doc h1 { font-family: var(--font-heading); color: var(--color-navy); }
.meta { color: #888; font-style: italic; margin-bottom: 20px; }
.legal-doc h3 { color: var(--color-navy); margin-top: 30px; margin-bottom: 10px; font-family: var(--font-heading); }

/* --- Footer --- */
.navy-footer { background-color: var(--color-navy); color: #fff; padding: 60px 0; margin-top: auto; }
.footer-grid { display: flex; justify-content: space-between; align-items: center; }
.f-info h4 { font-family: var(--font-heading); font-size: 1.8rem; margin-bottom: 5px; }
.f-links a { color: #ccc; margin-left: 20px; }
.f-links a:hover { color: var(--color-yellow); }
.copyright { opacity: 0.7; font-size: 0.85rem; }

@media (max-width: 992px) {
    .biz-nav { display: none; }
    .mobile-toggle { display: flex; }
    .hero h1 { font-size: 2.5rem; }
    .split-layout, .contact-wrapper, .stats-flex, .footer-grid { grid-template-columns: 1fr; flex-direction: column; text-align: center; }
    .hero-content { margin-left: 0; }
    .footer-grid { gap: 20px; }
}