/* ===========================================================
   Atool Teklif — Stil Dosyasi
   Renk yonu: koyu lacivert marka paneli + teal vurgu
   Tipografi: Sora (baslik) + Inter (govde)
   =========================================================== */

:root {
  --ink:        #0B1B2B;
  --ink-2:      #102A43;
  --ink-3:      #163A5F;
  --teal:       #14B8A6;
  --teal-acik:  #2DD4BF;
  --zemin:      #F5F7FA;
  --kart:       #FFFFFF;
  --metin:      #0D1B2A;
  --metin-soft: #5B6B7B;
  --kenar:      #E2E8F0;
  --kenar-koyu: #CBD5E1;
  --hata-bg:    #FEF2F2;
  --hata-cizgi: #FCA5A5;
  --hata-metin: #B91C1C;
  --basari-bg:  #ECFDF5;
  --basari-cizgi:#6EE7B7;
  --basari-metin:#047857;
  --golge:      0 20px 50px -20px rgba(11, 27, 43, 0.35);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--metin);
  background: var(--zemin);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---------- Genel duzen ---------- */
.giris-ekrani {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
}

/* ===========================================================
   SOL MARKA PANELI
   =========================================================== */
.marka-panel {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 100% 0%, rgba(20, 184, 166, 0.22) 0%, rgba(20, 184, 166, 0) 55%),
    radial-gradient(90% 70% at 0% 100%, rgba(22, 58, 95, 0.65) 0%, rgba(22, 58, 95, 0) 60%),
    linear-gradient(155deg, var(--ink-2) 0%, var(--ink) 70%);
  color: #fff;
  display: flex;
  align-items: stretch;
}

/* ince nokta dokusu */
.marka-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.6;
  pointer-events: none;
}

.marka-panel-icerik {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 56px 60px;
  display: flex;
  flex-direction: column;
}

/* logo */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-mark {
  width: 44px;
  height: 44px;
  border-radius: 13px;
  background: linear-gradient(140deg, var(--teal-acik), var(--teal));
  display: grid;
  place-items: center;
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: 24px;
  color: var(--ink);
  box-shadow: 0 8px 22px -6px rgba(20, 184, 166, 0.6);
}
.logo-yazi {
  font-family: 'Sora', sans-serif;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.logo-yazi strong { font-weight: 800; }

/* baslik / soz */
.marka-soz {
  margin-top: auto;
  margin-bottom: 34px;
}
.marka-soz h1 {
  font-family: 'Sora', sans-serif;
  font-size: clamp(30px, 3.4vw, 46px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
}
.marka-soz p {
  margin-top: 18px;
  max-width: 420px;
  font-size: 16px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.72);
}

/* ozellik listesi */
.marka-ozellik {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 34px;
}
.marka-ozellik li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
}
.marka-ozellik .nokta {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal-acik);
  box-shadow: 0 0 0 4px rgba(45, 212, 191, 0.18);
  flex: none;
}

.marka-alt {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

/* dekor: ust uste teklif sayfalari */
.dekor {
  position: absolute;
  right: -70px;
  top: 70px;
  width: 320px;
  height: 320px;
  z-index: 1;
  pointer-events: none;
}
.dekor .sayfa {
  position: absolute;
  width: 180px;
  height: 230px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(2px);
}
.dekor .s1 { transform: rotate(-14deg);  top: 40px;  right: 90px; }
.dekor .s2 { transform: rotate(-2deg);   top: 24px;  right: 50px; background: rgba(255, 255, 255, 0.08); }
.dekor .s3 {
  transform: rotate(9deg);
  top: 8px;
  right: 10px;
  background: linear-gradient(160deg, rgba(45, 212, 191, 0.22), rgba(255, 255, 255, 0.05));
  border-color: rgba(45, 212, 191, 0.3);
}

/* ===========================================================
   SAG FORM PANELI
   =========================================================== */
.form-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: var(--zemin);
}

.form-kutu {
  width: 100%;
  max-width: 396px;
}

.form-baslik { margin-bottom: 28px; }
.form-baslik .etiket {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 14px;
}
.form-baslik h2 {
  font-family: 'Sora', sans-serif;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.form-baslik p {
  margin-top: 8px;
  color: var(--metin-soft);
  font-size: 15px;
}

/* uyari kutulari */
.uyari {
  border-radius: 12px;
  padding: 13px 15px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 18px;
  border: 1px solid transparent;
}
.uyari-hata {
  background: var(--hata-bg);
  border-color: var(--hata-cizgi);
  color: var(--hata-metin);
}
.uyari-basari {
  background: var(--basari-bg);
  border-color: var(--basari-cizgi);
  color: var(--basari-metin);
}

/* form alanlari */
.giris-form { display: flex; flex-direction: column; gap: 18px; }

.alan { display: flex; flex-direction: column; gap: 8px; }
.alan-ust { display: flex; align-items: center; justify-content: space-between; }

.alan label {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--metin);
}

.alan input {
  width: 100%;
  height: 50px;
  padding: 0 15px;
  font-family: inherit;
  font-size: 15px;
  color: var(--metin);
  background: var(--kart);
  border: 1.5px solid var(--kenar);
  border-radius: 12px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.alan input::placeholder { color: #9AA7B4; }
.alan input:hover { border-color: var(--kenar-koyu); }
.alan input:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.14);
}

/* sifre alani */
.sifre-sarmal { position: relative; }
.sifre-sarmal input { padding-right: 72px; }
.sifre-goster {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  height: 34px;
  padding: 0 12px;
  border: none;
  background: transparent;
  color: var(--metin-soft);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 8px;
  transition: background .15s ease, color .15s ease;
}
.sifre-goster:hover { background: #EEF2F6; color: var(--ink); }

/* giris butonu */
.btn-giris {
  margin-top: 6px;
  height: 52px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--ink-3) 0%, var(--ink) 100%);
  color: #fff;
  font-family: 'Sora', sans-serif;
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform .12s ease, box-shadow .2s ease, filter .2s ease;
  box-shadow: 0 14px 26px -12px rgba(11, 27, 43, 0.6);
}
.btn-giris:hover { transform: translateY(-1px); filter: brightness(1.08); box-shadow: 0 18px 30px -12px rgba(11, 27, 43, 0.7); }
.btn-giris:active { transform: translateY(0); }
.btn-giris:focus-visible { outline: 3px solid rgba(20, 184, 166, 0.4); outline-offset: 2px; }

/* dipnot */
.form-dipnot {
  margin-top: 24px;
  font-size: 13.5px;
  color: var(--metin-soft);
  text-align: center;
}
.form-dipnot a {
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1.5px solid var(--teal);
  padding-bottom: 1px;
}
.form-dipnot a:hover { color: var(--teal); }

/* ===========================================================
   DUYARLI (RESPONSIVE)
   =========================================================== */
@media (max-width: 900px) {
  .giris-ekrani { grid-template-columns: 1fr; }

  .marka-panel {
    min-height: auto;
    padding: 0;
  }
  .marka-panel-icerik { padding: 32px 26px 36px; }
  .marka-soz { margin-top: 24px; margin-bottom: 22px; }
  .marka-soz h1 { font-size: 28px; }
  .marka-soz p { font-size: 15px; }
  .marka-ozellik { display: none; }
  .marka-alt { display: none; }
  .dekor { display: none; }

  .form-panel { padding: 32px 22px 48px; }
}

@media (max-width: 480px) {
  .marka-panel-icerik { padding: 26px 20px 30px; }
  .marka-soz h1 { font-size: 25px; }
  .form-baslik h2 { font-size: 24px; }
}

/* erisilebilirlik: hareket azaltma */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}