/* Real Master Ofis - marka stil dosyasi (Marka Kullanim Kilavuzu, ic yazilim arayuzu).
   Kural: kose en cok 2 px, golge yok, kirmizi yalniz tiklanabilir/aktif ogelerde, saf siyah yok. */

:root {
  --lacivert: #13233E;
  --kirmizi: #B23A2E;
  --kirmizi-metin: #9B2D22;
  --mercan: #E0665A;
  --zemin: #F4F3EF;
  --antrasit: #3B3B38;
  --ikincil: #EAEAEA;
  --kart: #fff;
  --kenar: #D6D5CF;
  --yesil: #2E7D5B;
  --alan-kenar: #8C8C88;
  --yazi-serif: Georgia, Gelasio, 'Times New Roman', serif;
  --yazi-sans: Inter, Arial, sans-serif;
  color-scheme: light dark;
}

/* 2026-11-09: koyu modda zemin laci, kartlar bir ton acik lacivert, metin kirik beyaz. */
@media (prefers-color-scheme: dark) {
  :root {
    --zemin: #13233E;
    --kart: #1B2C4D;
    --antrasit: #F4F3EF;
    --ikincil: #243656;
    --kenar: #34476B;
    --alan-kenar: #EAEAEA;
    --kirmizi-metin: #E0665A;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--zemin);
  color: var(--antrasit);
  font-family: var(--yazi-sans);
  font-size: 16px;
  line-height: 1.5;
}

h1, h2, .logo { font-family: var(--yazi-serif); font-weight: 700; }
h1 { font-size: 28px; line-height: 1.2; margin: 0 0 16px; }
h2 { font-size: 18px; line-height: 1.3; margin: 0 0 8px; }

.etiket { font-size: 12px; letter-spacing: .06em; text-transform: uppercase; font-weight: 600; }

a { color: var(--kirmizi); }

.kart {
  background: var(--kart);
  border: 1px solid var(--kenar);
  border-radius: 2px;
  padding: 20px;
}

/* Ortak form ogeleri: kutu ve dugme ayni yukseklik (48 px) ve tam genislik. */
.alan {
  display: block;
  width: 100%;
  height: 48px;
  margin: 0;
  padding: 0 12px;
  background: #fff;
  color: #3B3B38;
  border: 1px solid var(--alan-kenar);
  border-radius: 2px;
  font: 400 16px/1 var(--yazi-sans);
  box-shadow: none;
  appearance: none;
  -webkit-appearance: none;
}
.alan:focus-visible { outline: 2px solid var(--lacivert); outline-offset: 2px; border-color: var(--lacivert); }

.dugme-birincil {
  display: block;
  width: 100%;
  height: 48px;
  margin: 0;
  padding: 0 16px;
  background: var(--kirmizi);
  color: #fff;
  border: 1px solid var(--kirmizi);
  border-radius: 2px;
  font: 600 16px/1 var(--yazi-sans);
  cursor: pointer;
  box-shadow: none;
  appearance: none;
  -webkit-appearance: none;
}
.dugme-birincil:hover { background: #9B2D22; border-color: #9B2D22; }
.dugme-birincil:focus-visible { outline: 2px solid var(--lacivert); outline-offset: 2px; }
.dugme-birincil:disabled { opacity: .75; cursor: progress; }

@media (prefers-color-scheme: dark) {
  .dugme-birincil:focus-visible { outline-color: #fff; }
}

.hata-metni { color: var(--kirmizi-metin); font-size: 14px; margin: 0; }

.gizli-metin { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---- Giris sayfasi (2026-11-10 gorsel yenileme): solda/ustte fotograf paneli, yaninda giris karti.
   Iki renk modunda da ayni: fotograf ustunde lacivert perde, form tarafi kirik beyaz. ---- */
.giris-sayfa {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr;
  background: #F4F3EF;
  color: #3B3B38;
}

.giris-gorsel { position: relative; min-height: 232px; background: #13233E; color: #fff; overflow: hidden; }
.giris-gorsel img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 62% 70%; }
/* Perde: ustte logo, altta yazi okunsun diye iki ucta koyu, ortada acik. */
.giris-gorsel::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(19, 35, 62, .72) 0%, rgba(19, 35, 62, .28) 45%, rgba(19, 35, 62, .88) 100%); }
.giris-gorsel-ic { position: relative; z-index: 1; min-height: 232px; height: 100%; display: flex; flex-direction: column; justify-content: space-between; gap: 24px; padding: calc(20px + env(safe-area-inset-top, 0px)) 20px 20px; }

.logo b, .logo i { font-weight: 700; font-style: normal; }
.giris-logo { margin: 0; font-size: 28px; line-height: 1.1; letter-spacing: .02em; }
.giris-logo b { color: #fff; }
.giris-logo i { color: #B23A2E; }
.alt-marka { display: block; margin-top: 6px; font: 400 13px/1.2 var(--yazi-sans); letter-spacing: .08em; color: #F4F3EF; }
.giris-tanitim { margin: 0; max-width: 22ch; font: 700 22px/1.25 var(--yazi-serif); color: #fff; }
.giris-tanitim-alt { display: none; margin: 12px 0 0; max-width: 40ch; font: 400 16px/1.5 var(--yazi-sans); color: #F4F3EF; }

.giris-yan { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 24px; padding: 28px 16px calc(28px + env(safe-area-inset-bottom, 0px)); }

.giris-kart {
  width: 100%;
  max-width: 400px;
  padding: 28px 24px 24px;
  background: #fff;
  color: #3B3B38;
  border: 1px solid #D6D5CF;
  border-radius: 2px;
  animation: giris-belir 300ms ease-out both;
}
@keyframes giris-belir { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .giris-kart { animation: none; } }

.giris-baslik { margin: 0 0 20px; }
.giris-baslik h2 { margin: 0 0 4px; font-size: 24px; line-height: 1.2; color: #13233E; }
.giris-baslik p { margin: 0; font-size: 14px; color: #3B3B38; }

.giris-form { display: grid; gap: 16px; }
.giris-form label { display: block; margin-bottom: 4px; font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: #3B3B38; }
.giris-kart .alan { border-color: #8C8C88; }
.giris-kart .alan:focus-visible { border-color: var(--lacivert); }
.giris-kart .alan:focus-visible, .giris-kart .dugme-birincil:focus-visible { outline-color: #13233E; }

.sifre-kutusu { position: relative; }
.sifre-kutusu .alan { padding-right: 76px; }
.sifre-goster {
  position: absolute;
  top: 0;
  right: 0;
  height: 48px;
  min-width: 68px;
  padding: 0 12px;
  background: transparent;
  color: #13233E;
  border: 0;
  border-radius: 2px;
  font: 600 14px/1 var(--yazi-sans);
  cursor: pointer;
}
.sifre-goster:focus-visible { outline: 2px solid #13233E; outline-offset: -4px; }

.giris-hata { min-height: 21px; }
.giris-form .dugme-birincil { margin-top: 0; }
.giris-yardim { margin: 20px 0 0; text-align: center; font-size: 14px; color: #3B3B38; }

.giris-alt { text-align: center; color: #3B3B38; }
.giris-slogan { margin: 0; font: italic 400 12px/1.4 var(--yazi-sans); color: #3B3B38; }
.giris-telefon { margin: 8px 0 0; font-size: 14px; }
.giris-telefon a { color: #13233E; text-decoration: none; font-weight: 600; }
.giris-telefon a:focus-visible { outline: 2px solid #13233E; outline-offset: 2px; }

/* Masaustu: fotograf solda tam boy, form sagda. */
@media (min-width: 900px) {
  .giris-sayfa { grid-template-columns: minmax(0, 1.2fr) minmax(440px, .8fr); grid-template-rows: 1fr; }
  .giris-gorsel, .giris-gorsel-ic { min-height: 100vh; min-height: 100dvh; }
  .giris-gorsel img { object-position: 60% 50%; }
  .giris-gorsel-ic { padding: 48px; }
  .giris-logo { font-size: 40px; }
  .alt-marka { font-size: 16px; margin-top: 8px; }
  .giris-tanitim { font-size: 36px; max-width: 16ch; }
  .giris-tanitim-alt { display: block; }
  .giris-kart { padding: 40px 32px 28px; }
  .giris-baslik h2 { font-size: 28px; }
}