:root {
  --bg: #0b1220;
  --bg-alt: #111827;
  --kart: #1e293b;
  --kenar: #253347;
  --metin: #f8fafc;
  --metin-soluk: #94a3b8;
  --metin-cok-soluk: #64748b;

  --vurgu: #22c55e;
  --vurgu-koyu: #16a34a;
  --vurgu-metin: #052e16;

  --uyari: #f59e0b;
  --tehlike: #ef4444;

  --r: 14px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--metin);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;              /* iOS'ta 16px alti girdi alanlari sayfayi zumlar */
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: contain;
}

/* Centikli telefonlarda guvenli alan */
body {
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}

.ekran { display: none; min-height: 100vh; }
.ekran.aktif { display: block; }

/* ---------------- Eşleştirme ---------------- */
.marka { text-align: center; padding: 32px 0 8px; }
.marka-ad { font-size: 26px; font-weight: 800; letter-spacing: -0.02em; }
.marka-vurgu { color: var(--vurgu); }
.marka-alt { display: block; font-size: 13px; color: var(--metin-soluk); margin-top: 2px; }

.kart {
  background: var(--kart);
  border: 1px solid var(--kenar);
  border-radius: var(--r);
  padding: 24px 20px;
  margin: 16px;
}
.kart-orta { text-align: center; margin-top: 24px; }
.ikon-buyuk { font-size: 44px; margin-bottom: 8px; }
.kart h1 { font-size: 21px; margin: 0 0 8px; }
.aciklama { color: var(--metin-soluk); font-size: 14.5px; line-height: 1.55; margin: 0 0 20px; }

.ayirici {
  display: flex; align-items: center; gap: 12px;
  color: var(--metin-cok-soluk); font-size: 13px; margin: 18px 0;
}
.ayirici::before, .ayirici::after {
  content: ''; flex: 1; height: 1px; background: var(--kenar);
}

/* ---------------- Form ---------------- */
.etiket {
  display: block; font-size: 13px; color: var(--metin-soluk);
  margin: 14px 0 6px; text-align: left;
}
.giris {
  width: 100%;
  background: var(--bg-alt);
  border: 1px solid var(--kenar);
  border-radius: 10px;
  color: var(--metin);
  padding: 13px 14px;
  font-size: 16px;
  transition: border-color .15s, background .15s;
}
.giris:focus {
  outline: none;
  border-color: var(--vurgu);
  background: #16202f;
}
.giris-kod {
  text-align: center; letter-spacing: 3px; font-weight: 700;
  font-family: ui-monospace, monospace; font-size: 20px;
}
.satir { display: flex; gap: 10px; align-items: flex-end; }
.yarim { flex: 1; }
.satir .giris { flex: 1; }

.hizli-tarih { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.etiket-btn {
  background: var(--bg-alt); border: 1px solid var(--kenar);
  color: var(--metin-soluk); border-radius: 20px;
  padding: 7px 14px; font-size: 13px; cursor: pointer;
  transition: all .15s;
}
.etiket-btn:active { background: var(--vurgu); color: var(--vurgu-metin); border-color: var(--vurgu); }

/* ---------------- Butonlar ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: none; border-radius: 11px;
  padding: 14px 20px;
  font-size: 15.5px; font-weight: 600;
  cursor: pointer;
  transition: transform .08s, background .15s, opacity .15s;
  font-family: inherit;
}
.btn:active { transform: scale(0.975); }
.btn:disabled { opacity: .5; }
.btn-ana { background: var(--vurgu); color: var(--vurgu-metin); }
.btn-ikincil { background: var(--kenar); color: var(--metin); }
.btn-tehlike { background: var(--tehlike); color: #fff; }
.btn-tam { width: 100%; }
.btn-buyuk { padding: 17px; font-size: 17px; margin-top: 18px; }
.btn-kucuk { padding: 10px 14px; font-size: 13.5px; background: var(--kenar); color: var(--metin); }

.ikon-btn {
  background: var(--kart); border: 1px solid var(--kenar);
  color: var(--metin); width: 42px; height: 42px;
  border-radius: 11px; font-size: 18px; cursor: pointer;
}

/* ---------------- Ana ekran ---------------- */
.ust-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px; border-bottom: 1px solid var(--kenar);
  position: sticky; top: 0; background: var(--bg); z-index: 20;
}
.firma-ad { font-size: 17px; font-weight: 700; }
.firma-alt { font-size: 12.5px; color: var(--metin-cok-soluk); margin-top: 1px; }

.sekmeler {
  display: flex; gap: 6px; padding: 12px 16px 0;
  position: sticky; top: 75px; background: var(--bg); z-index: 19;
}
.sekme {
  flex: 1; background: var(--bg-alt); border: 1px solid var(--kenar);
  color: var(--metin-soluk); border-radius: 11px 11px 0 0;
  padding: 12px 8px; font-size: 14px; font-weight: 600; cursor: pointer;
  border-bottom: 3px solid transparent;
  font-family: inherit;
}
.sekme.aktif { background: var(--kart); color: var(--metin); border-bottom-color: var(--vurgu); }

.sayfa { display: none; padding: 16px; }
.sayfa.aktif { display: block; }

/* ---------------- Kamera ---------------- */
.tarayici-kutu {
  display: none; position: relative;
  border-radius: var(--r); overflow: hidden;
  background: #000; margin-bottom: 14px;
  aspect-ratio: 4 / 3;
}
.tarayici-kutu.aktif { display: block; }
#video { width: 100%; height: 100%; object-fit: cover; display: block; }

.tarayici-cerceve {
  position: absolute; inset: 22% 12%;
  border: 2px solid var(--vurgu);
  border-radius: 12px;
  box-shadow: 0 0 0 9999px rgba(0,0,0,0.45);
  pointer-events: none;
}
.tarayici-durum {
  position: absolute; bottom: 10px; left: 0; right: 0;
  text-align: center; font-size: 13px; color: #fff;
  text-shadow: 0 1px 4px rgba(0,0,0,0.9);
}
.tarayici-kapat {
  position: absolute; top: 10px; right: 10px;
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(0,0,0,0.6); color: #fff;
  border: none; font-size: 17px; cursor: pointer;
}

/* ---------------- Listeler ---------------- */
.liste-ust {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px; font-size: 13.5px; color: var(--metin-soluk);
}
.urun-satir {
  background: var(--kart); border: 1px solid var(--kenar);
  border-radius: 12px; padding: 13px 15px; margin-bottom: 9px;
}
.urun-ad { font-weight: 600; font-size: 15px; }
.urun-alt {
  display: flex; justify-content: space-between; gap: 10px;
  margin-top: 5px; font-size: 12.5px; color: var(--metin-soluk);
}
.rozet { font-weight: 700; font-size: 12.5px; }
.r-gecti { color: #fca5a5; }
.r-bugun { color: #fdba74; }
.r-yakin { color: #fcd34d; }
.r-normal { color: var(--vurgu); }

.son-eklenenler { margin-top: 22px; }
.son-eklenenler:empty { display: none; }

/* ---------------- Mesaj / bildirim ---------------- */
.mesaj { font-size: 14px; margin: 14px 0 0; min-height: 20px; }
.mesaj.ok { color: var(--vurgu); }
.mesaj.hata { color: var(--tehlike); }
.ipucu { font-size: 12.5px; color: var(--metin-cok-soluk); margin: 6px 0 0; line-height: 1.5; }

.bildirim {
  position: fixed; left: 16px; right: 16px;
  bottom: calc(20px + env(safe-area-inset-bottom));
  background: var(--vurgu); color: var(--vurgu-metin);
  padding: 14px 18px; border-radius: 12px;
  font-weight: 600; font-size: 15px; text-align: center;
  transform: translateY(140%); transition: transform .28s cubic-bezier(.2,.8,.2,1);
  z-index: 100; box-shadow: 0 8px 28px rgba(0,0,0,0.4);
}
.bildirim.gorunur { transform: translateY(0); }
.bildirim.hata { background: var(--tehlike); color: #fff; }

/* ---------------- Ayarlar ---------------- */
.perde {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.6); z-index: 50;
  align-items: flex-end;
}
.perde.aktif { display: flex; }
.perde-ic {
  width: 100%; background: var(--kart);
  border-radius: 18px 18px 0 0;
  padding: 24px 20px calc(24px + env(safe-area-inset-bottom));
  animation: yukari .25s cubic-bezier(.2,.8,.2,1);
}
@keyframes yukari { from { transform: translateY(100%); } to { transform: translateY(0); } }
.perde-ic h2 { margin: 0 0 18px; font-size: 19px; }
.ayar-satir {
  display: flex; justify-content: space-between;
  padding: 12px 0; border-bottom: 1px solid var(--kenar);
  font-size: 14.5px;
}
.perde-ic .btn { margin-top: 12px; }

/* Kamera ipucu ve elle tarih girişi */
.ipucu-kamera { margin-top: 10px; text-align: center; }
.giris-tarih {
  font-family: ui-monospace, monospace;
  letter-spacing: 1px;
  font-size: 17px;
}