:root {
    --navy: #102a43;
    --blue: #1f6feb;
    --green: #1a9a6c;
    --soft: #f3f7fb;
    --text: #243b53;
    --muted: #627d98;
    --white: #ffffff;
    --line: #d9e2ec;
    --shadow: 0 12px 40px rgba(16, 42, 67, .10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
    background: var(--white);
    line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
    position: sticky; top: 0; z-index: 20;
    background: rgba(255,255,255,.96);
    border-bottom: 1px solid var(--line);
}
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; color: var(--navy); font-size: 20px; }
.brand-mark {
    width: 42px; height: 42px; border-radius: 12px;
    display: grid; place-items: center; color: white;
    background: linear-gradient(135deg, var(--blue), var(--green));
}
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a { padding: 10px 12px; border-radius: 9px; color: var(--muted); font-weight: 700; }
.main-nav a:hover, .main-nav a.active { color: var(--blue); background: var(--soft); }
.menu-toggle { display: none; border: 0; background: transparent; font-size: 25px; }
.hero {
    padding: 90px 0;
    background:
        radial-gradient(circle at 85% 20%, rgba(26,154,108,.18), transparent 28%),
        linear-gradient(135deg, #eef6ff, #ffffff 58%, #eefaf6);
}
.hero-content { display: grid; grid-template-columns: 1.25fr .75fr; gap: 48px; align-items: center; }
.hero h1, .page-hero h1 { color: var(--navy); line-height: 1.1; margin: 10px 0 18px; }
.hero h1 { font-size: clamp(42px, 6vw, 72px); max-width: 780px; }
.hero p { font-size: 20px; color: var(--muted); max-width: 720px; }
.eyebrow { color: var(--green); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.hero-actions, .document-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    min-height: 44px; padding: 10px 18px; border-radius: 10px;
    font-weight: 800; border: 1px solid transparent; cursor: pointer;
}
.btn.primary { color: white; background: var(--blue); }
.btn.secondary { color: var(--navy); background: white; border-color: var(--line); }
.hero-card {
    min-height: 300px; padding: 36px; border-radius: 28px;
    background: linear-gradient(145deg, var(--navy), #174a72);
    color: white; box-shadow: var(--shadow);
    display: flex; flex-direction: column; justify-content: flex-end; gap: 12px;
}
.hero-card strong { font-size: 25px; }
.hero-card span { color: #cfe6ff; }
.molecule { font-size: 72px; margin-bottom: auto; }
.section { padding: 78px 0; }
.section.soft { background: var(--soft); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 28px; }
.section-head h2, .info-grid h2 { margin: 6px 0; color: var(--navy); font-size: 36px; }
.text-link { color: var(--blue); font-weight: 800; }
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.product-card {
    border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
    background: white; transition: .2s ease; height: 100%;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.product-image { aspect-ratio: 4 / 3; background: var(--soft); overflow: hidden; }
.product-image img { width: 100%; height: 100%; object-fit: cover; }
.placeholder { width: 100%; height: 100%; min-height: 220px; display: grid; place-items: center; color: var(--muted); background: linear-gradient(135deg, #eef4f8, #f8fbfd); }
.product-body { padding: 20px; }
.product-body h3 { margin: 5px 0 8px; color: var(--navy); }
.product-body p { margin: 0; color: var(--muted); }
.category { color: var(--green); font-size: 12px; text-transform: uppercase; font-weight: 800; letter-spacing: .08em; }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.feature-list { display: grid; gap: 16px; }
.feature-list div, .contact-card { background: white; border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.feature-list strong, .feature-list span { display: block; }
.feature-list span { color: var(--muted); margin-top: 5px; }
.page-hero { padding: 70px 0; background: var(--soft); border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: 50px; }
.page-hero p { color: var(--muted); font-size: 18px; }
.prose { max-width: 850px; font-size: 18px; }
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 28px; }
.filters a { padding: 9px 14px; border-radius: 999px; background: var(--soft); font-weight: 700; }
.filters a.active { background: var(--blue); color: white; }
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: start; }
.detail-image { border-radius: 22px; overflow: hidden; background: var(--soft); border: 1px solid var(--line); }
.detail-image img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.product-detail h1 { font-size: 46px; color: var(--navy); margin: 8px 0 15px; }
.lead { font-size: 20px; color: var(--muted); }
.document-list { display: grid; gap: 16px; }
.document-item {
    display: grid; grid-template-columns: 70px 1fr auto; gap: 20px; align-items: center;
    padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: white;
}
.pdf-icon { width: 58px; height: 58px; display: grid; place-items: center; border-radius: 13px; background: #fff0f0; color: #c0392b; font-weight: 900; }
.document-info h3 { margin: 4px 0; color: var(--navy); }
.document-info p { margin: 0; color: var(--muted); }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.contact-card h3 { color: var(--navy); margin-top: 0; }
.site-footer { background: var(--navy); color: white; margin-top: 30px; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; padding: 48px 0; }
.site-footer p { color: #c9d8e8; }
.copyright { text-align: center; border-top: 1px solid rgba(255,255,255,.1); padding: 18px; color: #b8c9d9; }
.whatsapp {
    position: fixed; right: 20px; bottom: 20px; z-index: 30;
    background: #25d366; color: white; padding: 13px 18px;
    border-radius: 999px; font-weight: 900; box-shadow: var(--shadow);
}
.empty-state { grid-column: 1/-1; padding: 36px; text-align: center; background: var(--soft); border-radius: 16px; color: var(--muted); }
.admin-shell { min-height: 100vh; background: #f5f7fa; }
.admin-top { background: var(--navy); color: white; padding: 16px 0; }
.admin-top .container { display: flex; justify-content: space-between; align-items: center; }
.admin-layout { display: grid; grid-template-columns: 230px 1fr; gap: 24px; padding: 28px 0; }
.admin-menu { background: white; border: 1px solid var(--line); border-radius: 16px; padding: 14px; height: fit-content; }
.admin-menu a { display: block; padding: 11px 12px; border-radius: 9px; font-weight: 700; }
.admin-menu a:hover { background: var(--soft); color: var(--blue); }
.admin-content { min-width: 0; }
.panel { background: white; border: 1px solid var(--line); border-radius: 16px; padding: 22px; margin-bottom: 22px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 16px; }
.form-group.full { grid-column: 1/-1; }
label { display: block; font-weight: 800; margin-bottom: 6px; }
input[type=text], input[type=password], input[type=email], input[type=number], textarea, select {
    width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 9px; font: inherit;
}
textarea { min-height: 120px; resize: vertical; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.alert { padding: 12px 15px; border-radius: 10px; margin-bottom: 16px; }
.alert.success { background: #e8f8f1; color: #126645; }
.alert.error { background: #fff0f0; color: #9e2a2b; }
.login-page { min-height: 100vh; display: grid; place-items: center; background: var(--soft); }
.login-box { width: min(420px, calc(100% - 32px)); background: white; padding: 30px; border-radius: 18px; border: 1px solid var(--line); box-shadow: var(--shadow); }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.small-btn { padding: 7px 10px; border-radius: 8px; border: 1px solid var(--line); background: white; font-weight: 700; cursor: pointer; }
.danger { color: #b42318; }
@media (max-width: 950px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-content, .info-grid, .product-detail { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .admin-layout { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
    .menu-toggle { display: block; }
    .main-nav {
        display: none; position: absolute; left: 16px; right: 16px; top: 72px;
        background: white; border: 1px solid var(--line); border-radius: 14px; padding: 12px; box-shadow: var(--shadow);
    }
    .main-nav.open { display: grid; }
    .hero { padding: 62px 0; }
    .product-grid { grid-template-columns: 1fr; }
    .document-item { grid-template-columns: 58px 1fr; }
    .document-actions { grid-column: 1/-1; }
    .footer-grid, .form-grid { grid-template-columns: 1fr; }
    .page-hero h1 { font-size: 40px; }
}


/* Kurumsal ana sayfa slider */
.home-slider { position:relative; min-height:620px; overflow:hidden; background:var(--navy); }
.slider-track,.slide,.slide-content { min-height:620px; }
.slider-track { position:relative; }
.slide {
    position:absolute; inset:0; opacity:0; visibility:hidden; transform:scale(1.02);
    transition:opacity .7s ease,visibility .7s ease,transform 1.2s ease;
    background-size:cover; background-position:center;
}
.slide.active { opacity:1; visibility:visible; transform:scale(1); z-index:2; }
.slide-one { background:radial-gradient(circle at 82% 25%,rgba(35,148,110,.45),transparent 28%),linear-gradient(120deg,#071d31 0%,#123d61 55%,#0f6a78 100%); }
.slide-two { background:radial-gradient(circle at 78% 22%,rgba(35,111,235,.45),transparent 30%),linear-gradient(120deg,#081c2e 0%,#174a72 58%,#236feb 130%); }
.slide-three { background:radial-gradient(circle at 80% 30%,rgba(255,255,255,.15),transparent 28%),linear-gradient(120deg,#102a43 0%,#145b70 55%,#1a9a6c 130%); }
.slide::after {
    content:""; position:absolute; width:520px; height:520px; border:1px solid rgba(255,255,255,.12);
    border-radius:50%; right:-120px; top:40px;
    box-shadow:0 0 0 60px rgba(255,255,255,.035),0 0 0 120px rgba(255,255,255,.025);
}
.slide-overlay {
    position:absolute; inset:0;
    background:linear-gradient(90deg,rgba(3,18,31,.95) 0%,rgba(3,18,31,.72) 48%,rgba(3,18,31,.22) 100%),
    repeating-linear-gradient(135deg,transparent 0,transparent 28px,rgba(255,255,255,.018) 29px,rgba(255,255,255,.018) 30px);
}
.slide-content { position:relative; z-index:3; display:grid; grid-template-columns:1.25fr .75fr; align-items:center; gap:60px; color:white; }
.slide-copy { max-width:780px; padding:80px 0; }
.slide-copy h1,.slide-copy h2 { margin:12px 0 22px; color:white; font-size:clamp(42px,5.5vw,72px); line-height:1.08; letter-spacing:-.03em; }
.slide-copy h2 { font-size:clamp(38px,5vw,64px); }
.slide-copy p { max-width:690px; color:#d8e8f5; font-size:20px; margin:0; }
.eyebrow.light { color:#7ee2be; }
.btn.glass { color:white; background:rgba(255,255,255,.10); border-color:rgba(255,255,255,.28); backdrop-filter:blur(8px); }
.btn.glass:hover { background:rgba(255,255,255,.18); }
.slide-badge {
    justify-self:end; width:245px; min-height:245px; border-radius:28px;
    border:1px solid rgba(255,255,255,.22); background:rgba(255,255,255,.09);
    backdrop-filter:blur(12px); padding:28px; display:flex; flex-direction:column;
    justify-content:flex-end; box-shadow:0 24px 70px rgba(0,0,0,.22);
}
.slide-badge span { margin-bottom:auto; font-size:54px; color:rgba(255,255,255,.24); font-weight:900; }
.slide-badge strong { display:block; font-size:28px; }
.slide-badge small { display:block; margin-top:6px; color:#c9dfec; font-size:14px; }
.slider-arrow {
    position:absolute; top:50%; z-index:6; width:48px; height:48px; margin-top:-24px;
    border:1px solid rgba(255,255,255,.30); border-radius:50%; background:rgba(5,25,40,.35);
    color:white; font-size:34px; line-height:1; cursor:pointer;
}
.slider-arrow.prev { left:24px; } .slider-arrow.next { right:24px; }
.slider-dots { position:absolute; z-index:7; left:50%; bottom:28px; transform:translateX(-50%); display:flex; gap:9px; }
.slider-dots button { width:11px; height:11px; padding:0; border:0; border-radius:50%; background:rgba(255,255,255,.4); cursor:pointer; }
.slider-dots button.active { width:34px; border-radius:999px; background:white; }
.corporate-strip { background:white; border-bottom:1px solid var(--line); box-shadow:0 12px 40px rgba(16,42,67,.06); }
.corporate-strip-grid { display:grid; grid-template-columns:repeat(3,1fr); }
.corporate-strip-grid>div { display:flex; align-items:center; gap:15px; padding:24px 28px; border-right:1px solid var(--line); }
.corporate-strip-grid>div:last-child { border-right:0; }
.corporate-strip-grid strong,.corporate-strip-grid small { display:block; }
.corporate-strip-grid strong { color:var(--navy); }
.corporate-strip-grid small { color:var(--muted); margin-top:2px; }
.strip-icon { flex:0 0 46px; width:46px; height:46px; border-radius:14px; display:grid; place-items:center; background:var(--soft); color:var(--blue); font-size:20px; font-weight:900; }
.corporate-about { position:relative; overflow:hidden; }
.cta-band { padding:54px 0; background:linear-gradient(110deg,var(--navy),#174a72 65%,#177d68); color:white; }
.cta-band-inner { display:flex; align-items:center; justify-content:space-between; gap:30px; }
.cta-band h2 { margin:8px 0 0; color:white; font-size:34px; }
@media (max-width:950px) {
    .home-slider,.slider-track,.slide,.slide-content { min-height:590px; }
    .slide-content { grid-template-columns:1fr; }
    .slide-badge { display:none; }
    .slide-copy { padding:80px 45px; }
    .corporate-strip-grid { grid-template-columns:1fr; }
    .corporate-strip-grid>div { border-right:0; border-bottom:1px solid var(--line); }
}
@media (max-width:720px) {
    .home-slider,.slider-track,.slide,.slide-content { min-height:560px; }
    .slide-copy { padding:72px 20px 90px; }
    .slide-copy h1,.slide-copy h2 { font-size:40px; }
    .slide-copy p { font-size:17px; }
    .slider-arrow { width:40px; height:40px; font-size:28px; top:auto; bottom:17px; }
    .slider-arrow.prev { left:18px; } .slider-arrow.next { right:18px; }
    .slider-dots { bottom:31px; }
    .cta-band-inner { align-items:flex-start; flex-direction:column; }
    .cta-band h2 { font-size:28px; }
}