/* htc_platform — sade, kendi kendine yeten arayüz (CDN yok) */
:root {
  --lacivert: #1f3a5f;
  --lacivert-koyu: #16293f;
  --turuncu: #e8762d;
  --zemin: #f4f6f9;
  --cizgi: #dde3ea;
  --metin: #2b3440;
  --soluk: #7a8794;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--zemin); color: var(--metin);
  font-family: "Segoe UI", system-ui, sans-serif; font-size: 15px;
}
a { color: var(--lacivert); text-decoration: none; }

/* Yerleşim: sol menü + içerik (gövde dikey flex → çerçeve footer'ı en alta oturur) */
body { min-height: 100vh; display: flex; flex-direction: column; }
.yerlesim { display: flex; flex: 1; }
.yan-menu {
  width: 256px; background: var(--lacivert-koyu); color: #cdd7e4;
  display: flex; flex-direction: column; flex-shrink: 0;
  transition: margin-left .22s ease;
}
.yerlesim.menu-kapali .yan-menu { margin-left: -256px; }
.yan-menu .logo { padding: 18px 16px; background: #fff; text-align: center; }
.yan-menu .logo img { max-width: 100%; height: auto; }
.yan-menu nav { padding: 12px 0; flex: 1; }
.yan-menu nav a {
  display: block; padding: 12px 20px; font-size: 16px; color: #cdd7e4;
  border-left: 3px solid transparent;
}
.yan-menu nav a:hover { background: var(--lacivert); color: #fff; }
.yan-menu nav a.secili { background: var(--lacivert); color: #fff; border-left-color: var(--turuncu); }
.yan-menu .baslik {
  padding: 16px 20px 5px; font-size: 12px; text-transform: uppercase;
  letter-spacing: .08em; color: var(--soluk);
}
.yan-menu .alt { padding: 14px 20px; font-size: 12px; color: var(--soluk); border-top: 1px solid #24384f; }

.icerik { flex: 1; padding: 24px 30px; min-width: 0; }
.ust-cubuk { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; gap: 12px; flex-wrap: wrap; }
.ust-cubuk h1 { margin: 0; font-size: 21px; color: var(--lacivert); }
.ust-sol { display: flex; align-items: center; gap: 10px; min-width: 0; }
#menu-dugme {
  display: inline-flex; align-items: center; background: none; border: 0; cursor: pointer;
  padding: 6px; border-radius: 8px; color: var(--lacivert);
}
#menu-dugme:hover { background: #e6ebf2; }
.kullanici-kutu { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--soluk); }
.kullanici-kutu .kullanici-ad { display: inline-flex; align-items: center; gap: 6px; margin-right: 4px; }
.ust-buton {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 13px;
  border: 1px solid var(--cizgi); border-radius: 999px; background: #fff;
  color: var(--lacivert); font-size: 13px; transition: .15s;
}
.ust-buton:hover { border-color: var(--lacivert); box-shadow: 0 2px 6px rgba(31,58,95,.14); }
.ust-buton.cikis { color: #c94f3d; }
.ust-buton.cikis:hover { border-color: #c94f3d; }
@media (max-width: 800px) {
  .yan-menu {
    position: fixed; left: 0; top: 0; bottom: 0; z-index: 150; margin-left: 0 !important;
    transform: translateX(0); transition: transform .22s ease;
    box-shadow: 4px 0 18px rgba(0,0,0,.25);
  }
  .yerlesim.menu-kapali .yan-menu { transform: translateX(-100%); box-shadow: none; }
  .ust-buton span { display: none; }  /* dar ekranda yalnız simge */
  .ust-buton { padding: 7px 9px; }
}
tr.tikla-satir { cursor: pointer; }

/* Kartlar / kutular */
.kutu { background: #fff; border: 1px solid var(--cizgi); border-radius: 8px; padding: 18px; margin-bottom: 18px; }
.ozet-kartlar { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.ozet-kart {
  background: #fff; border: 1px solid var(--cizgi); border-radius: 8px;
  padding: 16px 20px; min-width: 170px; flex: 1;
}
.ozet-kart .deger { font-size: 28px; font-weight: 600; color: var(--lacivert); }
.ozet-kart .etiket { font-size: 13px; color: var(--soluk); }

.modul-kartlar { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.modul-kart {
  background: #fff; border: 1px solid var(--cizgi); border-radius: 8px; padding: 18px;
  display: block; transition: box-shadow .15s;
}
.modul-kart:hover { box-shadow: 0 3px 10px rgba(31,58,95,.15); }
.modul-kart .ikon { font-size: 26px; }
.modul-kart h3 { margin: 8px 0 6px; font-size: 16px; color: var(--lacivert); }
.modul-kart p { margin: 0; font-size: 13px; color: var(--soluk); }
.modul-kart .sure { margin-top: 10px; font-size: 12px; color: var(--turuncu); }

/* Tablolar */
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { padding: 9px 12px; border-bottom: 1px solid var(--cizgi); text-align: left; }
th { background: var(--lacivert); color: #fff; font-weight: 500; font-size: 13px; }
tr:hover td { background: #f0f4f9; }
.tablo-kutu { background: #fff; border: 1px solid var(--cizgi); border-radius: 8px; overflow: auto; }

/* Formlar */
form.dikey label { display: block; margin: 12px 0 4px; font-size: 13px; color: var(--soluk); }
input[type=text], input[type=password], input[type=email], input[type=date],
input[type=number], select, textarea {
  width: 100%; max-width: 480px; padding: 8px 10px; border: 1px solid var(--cizgi);
  border-radius: 6px; font: inherit; background: #fff;
}
textarea { min-height: 70px; }
/* Şifre alanı: göster/gizle butonlu sarıcı */
.sifre-kutu { position: relative; max-width: 480px; }
.sifre-kutu input { max-width: none; padding-right: 40px; }
.sifre-goster {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  background: none; border: 0; cursor: pointer; font-size: 15px; padding: 2px;
  line-height: 1; opacity: .65;
}
.sifre-goster:hover { opacity: 1; }
.buton {
  display: inline-block; background: var(--lacivert); color: #fff; border: 0;
  padding: 9px 18px; border-radius: 6px; font: inherit; cursor: pointer; margin-top: 14px;
}
.buton:hover { background: var(--lacivert-koyu); }
.buton.turuncu { background: var(--turuncu); }
.buton.kucuk { padding: 4px 10px; font-size: 12px; margin: 0; }
.buton.gri { background: var(--soluk); }

/* Durum rozetleri + mesajlar */
.rozet { display: inline-block; padding: 2px 9px; border-radius: 10px; font-size: 12px; color: #fff; }
.rozet.yesil { background: #2e9e5b; }
.rozet.gri { background: var(--soluk); }
.rozet.kirmizi { background: #c94f3d; }
.rozet.sari { background: #d99a1b; }
.mesaj { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; font-size: 14px; }
.mesaj.bilgi, .mesaj.basari { background: #e2f2e8; color: #1e6b40; border: 1px solid #b8dfc7; }
.mesaj.hata { background: #f9e4e0; color: #96331f; border: 1px solid #ecc4bc; }

/* Giriş sayfası */
.giris-sayfa {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--lacivert-koyu), var(--lacivert));
}
.giris-kutu { background: #fff; border-radius: 10px; padding: 34px 38px; width: 360px; }
.giris-kutu img { display: block; max-width: 220px; margin: 0 auto 20px; }
.giris-kutu h2 { margin: 0 0 16px; font-size: 17px; color: var(--lacivert); text-align: center; }
.arac-cubugu { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; flex-wrap: wrap; }
.arac-cubugu form { display: flex; gap: 8px; }
.arac-cubugu input[type=text] { width: 240px; }