* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "Inter", -apple-system, sans-serif; color: #1e293b; background: #fff; line-height: 1.6; }
a { color: #0ea5e9; text-decoration: none; }
.topbar { background: #1e3a8a; color: #fff; padding: 14px 0; position: sticky; top: 0; z-index: 100; }
.topbar-ic { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 16px; }
.topbar nav { display: flex; gap: 20px; align-items: center; }
.topbar nav a { color: #cbd5e1; font-size: 14px; font-weight: 500; }
.topbar nav a:hover { color: #fff; }
.btn-giris { background: #0ea5e9; color: #fff !important; padding: 8px 16px; border-radius: 6px; }
.hero { background: linear-gradient(135deg, #1e3a8a 0%, #0c4a6e 100%); color: #fff; padding: 80px 0; }
.hero-ic { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center; }
.etiket { display: inline-block; background: rgba(255,255,255,.15); padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; letter-spacing: .5px; text-transform: uppercase; margin-bottom: 16px; }
.hero h1 { font-size: 38px; line-height: 1.2; margin-bottom: 20px; font-weight: 800; }
.hero p { font-size: 17px; opacity: .9; margin-bottom: 30px; }
.hero-btn { display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 12px 24px; border-radius: 8px; font-weight: 600; font-size: 15px; cursor: pointer; border: none; transition: transform .15s; }
.btn:hover { transform: translateY(-1px); }
.btn-birincil { background: #0ea5e9; color: #fff; }
.btn-birincil:hover { background: #0284c7; }
.btn-ikincil { background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.3); }
.eeg-kart { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.15); border-radius: 16px; padding: 24px; }
.eeg-kart svg { width: 100%; height: auto; }
.eeg-kart p { margin-top: 12px; font-size: 13px; opacity: .8; text-align: center; }
.ozellikler { padding: 80px 0; background: #f8fafc; }
.ozellikler-ic { max-width: 1200px; margin: 0 auto; padding: 0 24px; text-align: center; }
.ozellikler h2 { font-size: 30px; color: #1e3a8a; margin-bottom: 12px; }
.alt-metin { color: #64748b; font-size: 16px; max-width: 700px; margin: 0 auto 40px; }
.ozellik-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: left; }
.ozellik-kart { background: #fff; padding: 28px 22px; border-radius: 12px; box-shadow: 0 4px 12px rgba(0,0,0,.06); }
.ozellik-kart .ikon { font-size: 32px; margin-bottom: 14px; }
.ozellik-kart h3 { font-size: 16px; color: #1e3a8a; margin-bottom: 8px; }
.ozellik-kart p { font-size: 14px; color: #64748b; }
.istatistik { background: #1e3a8a; color: #fff; padding: 50px 0; }
.istatistik-ic { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.istat-kart .sayi { font-size: 36px; font-weight: 800; color: #0ea5e9; }
.istat-kart .ad { font-size: 13px; opacity: .85; margin-top: 6px; letter-spacing: .5px; text-transform: uppercase; }
.icerik-sayfa { padding: 60px 0; }
.icerik-ic { max-width: 900px; margin: 0 auto; padding: 0 24px; }
.icerik-ic.dar { max-width: 600px; }
.icerik-ic h1 { font-size: 32px; color: #1e3a8a; margin-bottom: 30px; }
.icerik-blok { margin-bottom: 36px; }
.icerik-blok h2 { font-size: 22px; color: #1e3a8a; margin-bottom: 14px; }
.icerik-blok p { color: #334155; margin-bottom: 14px; }
.dalga-liste { padding-left: 20px; color: #334155; }
.dalga-liste li { margin-bottom: 8px; }
.form-kart { background: #f8fafc; padding: 30px; border-radius: 12px; }
.form-kart label { display: block; font-size: 13px; font-weight: 600; color: #334155; margin: 14px 0 6px; }
.form-kart input, .form-kart textarea { width: 100%; padding: 10px 14px; border: 1px solid #cbd5e1; border-radius: 6px; font-size: 14px; font-family: inherit; }
.form-kart button { margin-top: 20px; }
.mesaj-kap { max-width: 1200px; margin: 20px auto 0; padding: 0 24px; }
.mesaj { padding: 12px 16px; border-radius: 8px; margin-bottom: 12px; font-size: 14px; }
.mesaj.basari { background: #dcfce7; color: #166534; }
.mesaj.hata { background: #fee2e2; color: #991b1b; }
.giris-sayfa { background: linear-gradient(135deg, #1e3a8a 0%, #0c4a6e 100%); min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.giris-wrap { width: 100%; max-width: 400px; }
.giris-kart { background: #fff; border-radius: 16px; padding: 40px 32px; box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.giris-logo { font-size: 40px; text-align: center; margin-bottom: 16px; }
.giris-kart h1 { font-size: 22px; color: #1e3a8a; text-align: center; margin-bottom: 8px; }
.giris-kart p { color: #64748b; text-align: center; font-size: 14px; margin-bottom: 24px; }
.giris-kart label { display: block; font-size: 13px; font-weight: 600; color: #334155; margin: 14px 0 6px; }
.giris-kart input { width: 100%; padding: 10px 14px; border: 1px solid #cbd5e1; border-radius: 6px; font-size: 14px; }
.tam-genislik { width: 100%; margin-top: 20px; }
.geri-link { display: block; text-align: center; margin-top: 20px; color: #64748b; font-size: 13px; }
.footer { background: #0f172a; color: #cbd5e1; padding: 40px 0 20px; margin-top: 60px; }
.footer-ic { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 10px; }
.footer h5 { color: #fff; font-size: 13px; margin-bottom: 10px; }
.footer a { display: block; color: #94a3b8; font-size: 13px; margin-bottom: 6px; }
.footer-alt { max-width: 1200px; margin: 30px auto 0; padding: 20px 24px 0; border-top: 1px solid #1e293b; font-size: 12px; color: #64748b; text-align: center; }
@media (max-width: 900px) {
.hero-ic { grid-template-columns: 1fr; }
.hero h1 { font-size: 28px; }
.ozellik-grid { grid-template-columns: 1fr 1fr; }
.istatistik-ic { grid-template-columns: 1fr 1fr; }
.footer-ic { grid-template-columns: 1fr; }
}