/* Core variables */
:root{
  --blue-900:#002366;
  --cyan-500:#00AEEF;
  --ink-900:#0c1222;
  --ink-700:#2a344b;
  --ink-500:#5b6888;
  --ink-300:#b8c0d9;
  --bg-50:#f6f8fc;
  --white:#ffffff;
  --radius:16px;
  --shadow:0 10px 30px rgba(0,0,0,.08);
}
*{box-sizing:border-box}html,body{height:100%}
body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,Apple Color Emoji,Segoe UI Emoji;color:var(--ink-900);background:var(--white);line-height:1.6}
.container{width:min(1120px,92vw);margin-inline:auto}
.section{padding:72px 0}
.section-alt{background:var(--bg-50)}
h1,h2,h3{line-height:1.2;color:var(--ink-900);margin:0 0 12px}
h1{font-size:clamp(28px,3.4vw,44px);font-weight:800}
h2{font-size:clamp(22px,2.4vw,32px);font-weight:800}
h3{font-size:clamp(18px,1.8vw,22px);font-weight:700}
p{margin:0 0 12px;color:var(--ink-700)}
a{color:var(--blue-900);text-decoration:none}
a:hover{text-decoration:underline}
.center{text-align:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:.9rem 1.2rem;border-radius:999px;font-weight:700;border:2px solid transparent;transition:.2s ease;text-decoration:none;cursor:pointer;white-space:nowrap}
.btn-cta{background:var(--cyan-500);color:var(--white)}
.btn-cta:hover{opacity:.9}
.btn-primary{background:var(--blue-900);color:var(--white)}
.btn-primary:hover{filter:brightness(1.1)}
.btn-outline{border-color:var(--blue-900);color:var(--blue-900);background:transparent}
.btn-outline:hover{background:var(--blue-900);color:var(--white)}
.skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:16px;top:16px;width:auto;height:auto;padding:8px 12px;background:#000;color:#fff;z-index:9999}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:var(--white);border-bottom:1px solid #edf0f7;backdrop-filter:saturate(180%) blur(8px)}
.header-inner{display:flex;align-items:center;gap:20px;padding:14px 0}
.brand-link{display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:.4px;color:var(--blue-900)}
.brand-logo{height:44px;width:auto}
.brand-text{font-size:20px}
.brand-text .osgb-tag{background:var(--cyan-500);color:#fff;padding:2px 8px;border-radius:999px;margin-left:6px;font-size:14px}
.nav{margin-left:auto;display:flex;align-items:center;gap:16px}
.menu{display:flex;gap:18px;list-style:none;margin:0;padding:0}
.menu a{padding:8px 10px;border-radius:10px;color:var(--ink-900);font-weight:600}
.menu a:hover{background:var(--bg-50);text-decoration:none}
.nav-toggle{display:none;width:42px;height:40px;background:transparent;border:0;border-radius:10px;cursor:pointer}
.nav-toggle .bar{display:block;width:24px;height:3px;background:var(--ink-900);margin:4px auto;border-radius:3px}

/* Hero */
.hero{position:relative;overflow:hidden;padding:48px 0 0}
.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;align-items:center;gap:32px}
.hero-copy p{color:var(--ink-500);font-size:18px}
.hero-actions{display:flex;gap:12px;margin-top:16px}
.hero-visual{border-radius:var(--radius);box-shadow:var(--shadow);background:linear-gradient(135deg,#e9f7ff,#f5f8ff);padding:8px}
.hero-visual img{display:block;width:100%;height:auto;border-radius:12px}
.hero-wave{height:56px;background:
  radial-gradient(120px 40px at 20% -10px, rgba(0,174,239,.2) 30%, transparent 32%),
  radial-gradient(160px 60px at 60% -24px, rgba(0,35,102,.12) 30%, transparent 34%),
  linear-gradient(0deg, transparent, transparent)}

/* Cards & grids */
.card{background:var(--white);border:1px solid #eef2f8;border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.media-card{padding:0;overflow:hidden}
.media-card img{display:block;width:100%;height:auto}
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.service .icon{color:var(--cyan-500);width:48px;height:48px;display:grid;place-items:center;background:#ecfaff;border-radius:12px;margin-bottom:12px}
.service .icon svg{width:26px;height:26px}
.service .link{display:inline-block;margin-top:8px;font-weight:700}
.checklist{padding-left:18px}
.checklist li{margin:6px 0}

/* Referanslar */
.refs{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:10px}
.ref{display:grid;place-items:center;padding:18px;border:1px dashed #e5eaf3;border-radius:12px;color:#8b96b3;font-weight:800;letter-spacing:2px}

/* Blog kartları */
.blog-card{display:flex;flex-direction:column;gap:8px;padding:18px}
.blog-card .meta{color:var(--ink-500);font-size:14px}
.blog-card .read{font-weight:700}

/* Form */
form label{display:block;font-weight:700;color:var(--ink-700);margin:10px 0 6px}
input, textarea{width:100%;padding:12px 14px;border:1px solid #dbe1ee;border-radius:12px;background:#fff;color:var(--ink-900);outline:none;transition:border-color .15s ease, box-shadow .15s ease}
input:focus, textarea:focus{border-color:var(--cyan-500);box-shadow:0 0 0 4px rgba(0,174,239,.12)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-grid .wide{grid-column:1 / -1}
.form-actions{display:flex;align-items:center;gap:14px;margin-top:12px}
#form-status{font-size:14px;color:var(--ink-500)}
.map-embed{position:relative;overflow:hidden;border-radius:12px;box-shadow:var(--shadow);border:1px solid #e4ebf6}
.map-embed iframe{width:100%;height:320px;display:block}
.mt-s{margin-top:8px}

/* Footer */
.site-footer{background:var(--blue-900);color:#c9d4ff;padding:26px 0;margin-top:36px}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:18px}
.site-footer a{color:#c9d4ff}
.site-footer a:hover{color:#fff}

/* === FAQ (SSS) === */
.faq{max-width:900px;margin-inline:auto;margin-top:10px}
.faq-item{border:1px solid #e5eaf3;border-radius:12px;background:#fff;margin:10px 0;overflow:hidden;box-shadow:var(--shadow)}
.faq-q{width:100%;text-align:left;background:#f7fbff;border:0;padding:16px 18px;font-weight:800;color:var(--ink-900);cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-a{padding:0 18px;max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-item.open .faq-a{padding:12px 18px}

/* === FAQ Search === */
.faq-search{margin:12px 0 6px}
.faq-search input[type="search"]{
  width:100%; padding:12px 14px; border:1px solid #dbe1ee; border-radius:12px; outline:none;
  transition:border-color .15s ease, box-shadow .15s ease;
}
.faq-search input[type="search"]:focus{border-color:var(--cyan-500); box-shadow:0 0 0 4px rgba(0,174,239,.12)}
.faq .no-results{padding:12px 0; color:var(--ink-500)}

/* === Cookie Banner / Modal (KVKK) === */
.cookie-banner{position:fixed;left:16px;right:16px;bottom:-400px;opacity:0;transform:translateY(20px);transition:.25s ease;z-index:9999;background:#fff;border:1px solid #e5eaf3;border-radius:16px;box-shadow:var(--shadow);padding:14px}
.cookie-banner.show{bottom:16px;opacity:1;transform:translateY(0)}
.cookie-banner .actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.cookie-banner .hint{font-size:14px;color:var(--ink-500)}
.cookie-modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;background:rgba(0,0,0,.35);z-index:10000;padding:16px}
.cookie-modal.show{display:flex}
.cookie-modal .panel{background:#fff;border-radius:16px;box-shadow:var(--shadow);width:min(680px, 96vw);padding:18px;border:1px solid #e5eaf3}
.cookie-modal .row{display:flex;align-items:center;justify-content:space-between;margin:10px 0}
.cookie-modal .actions{display:flex;gap:8px;justify-content:flex-end;margin-top:10px}

/* KVKK link */
.kvkk-link{font-weight:800}

/* === Floating WhatsApp Button === */
.whatsapp-fab{position:fixed;right:18px;bottom:18px;z-index:9998;display:inline-flex;align-items:center;gap:10px;background:#25D366;color:#fff;border-radius:999px;padding:12px 16px;font-weight:800;box-shadow:0 10px 25px rgba(37,211,102,.35)}
.whatsapp-fab:hover{filter:brightness(1.05);text-decoration:none}
.whatsapp-fab .wa-dot{width:10px;height:10px;border-radius:50%;background:#fff;opacity:.9}
.whatsapp-fab.offline{background:#8b96b3}
@media (max-width:760px){ .whatsapp-fab span.label{display:none} }

/* Responsive */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .refs{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:800px){
  .hero-inner{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .menu{position:absolute;top:64px;right:16px;left:16px;flex-direction:column;background:#fff;border:1px solid #e8edf7;border-radius:12px;padding:10px;display:none}
  .menu.open{display:flex}
  .nav-toggle{display:inline-block}
  .btn-cta{display:none}
}