:root {
  --zemin: #f4f5fa; --kart: #ffffff; --kenar: #e3e6f2; --metin: #25283f; --soluk: #6a6f8c; --baslik: #1b1d36;
  --vurgu: #6d45e0; --vurgu-yazi: #ffffff; --ikinci: #eef0fb; --ikinci-yazi: #2b2f55;
  --basari: #2f9e74; --hata: #c2415a; --uyari: #b7791f;
  --golge: 0 1px 2px rgba(37,40,63,.05), 0 8px 24px rgba(37,40,63,.06);
  --font: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --zemin: #080a14; --kart: #151831; --kenar: rgba(255,255,255,.09); --metin: #e4e7fb; --soluk: #8e94b8; --baslik: #f4f5ff;
    --vurgu: #8b5cf6; --vurgu-yazi: #ffffff; --ikinci: #20244a; --ikinci-yazi: #e4e7fb;
    --basari: #34d399; --hata: #fb7185; --uyari: #fbbf24;
    --golge: 0 10px 30px rgba(0,0,0,.35);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--zemin); color: var(--metin); font: 16px/1.5 var(--font);
  padding-bottom: env(safe-area-inset-bottom);
}
[hidden] { display: none !important; }
.ust {
  display: flex; align-items: center; gap: 12px; padding: calc(12px + env(safe-area-inset-top)) 16px 12px;
  background: #11132a; color: #fff; position: sticky; top: 0; z-index: 5;
}
.ust img { border-radius: 9px; }
.ust-baslik { font-weight: 700; font-size: 16px; line-height: 1.2; }
.ust-alt { font-size: 13px; opacity: .75; }
main { max-width: 560px; margin: 0 auto; padding: 16px; }
.kart {
  background: var(--kart); border: 1px solid var(--kenar); border-radius: 18px; padding: 18px;
  box-shadow: var(--golge); margin-bottom: 14px;
}
h1 { font-size: 21px; margin: 0 0 4px; color: var(--baslik); }
h2 { font-size: 17px; margin: 0; color: var(--baslik); }
.soluk { color: var(--soluk); }
.kucuk { font-size: 13px; }
p { margin: 0 0 12px; }
.etiket { display: block; font-size: 13px; font-weight: 600; margin: 14px 0 6px; }
input:not([type=file]) {
  width: 100%; font: inherit; color: var(--metin); background: var(--zemin); border: 1px solid var(--kenar);
  border-radius: 12px; padding: 12px 14px; outline: none;
}
input:focus { border-color: var(--vurgu); box-shadow: 0 0 0 3px color-mix(in srgb, var(--vurgu) 25%, transparent); }
.kod { font-size: 24px; letter-spacing: .18em; text-align: center; text-transform: uppercase; font-weight: 600; }
.dugme {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; cursor: pointer;
  font: 600 16px var(--font); border-radius: 14px; padding: 13px 18px; min-height: 48px; text-decoration: none;
  -webkit-tap-highlight-color: transparent; transition: transform .08s, opacity .15s;
}
.dugme:active { transform: scale(.98); }
.dugme:disabled { opacity: .55; cursor: default; }
.dugme.ana { background: var(--vurgu); color: var(--vurgu-yazi); }
.dugme.ikinci { background: var(--ikinci); color: var(--ikinci-yazi); }
.dugme.tam { width: 100%; margin-top: 16px; }
.dugme svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linejoin: round; }
.secim { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
.buyuk { flex-direction: column; min-height: 104px; font-size: 15px; }
.buyuk svg { width: 34px; height: 34px; }
.metin-dugme { background: none; border: 0; color: var(--vurgu); font: 600 14px var(--font); cursor: pointer; padding: 8px 4px; }
.hata { color: var(--hata); font-size: 14px; margin: 10px 0 0; min-height: 1px; }
.secilenler { margin-top: 18px; border-top: 1px solid var(--kenar); padding-top: 14px; }
.onizleme { list-style: none; padding: 0; margin: 8px 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(76px, 1fr)); gap: 8px; }
.onizleme li { position: relative; aspect-ratio: 3/4; border-radius: 10px; overflow: hidden; background: var(--ikinci); display: flex; align-items: center; justify-content: center; font-size: 12px; text-align: center; padding: 4px; color: var(--soluk); }
.onizleme img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.onizleme .kaldir {
  position: absolute; top: 4px; right: 4px; width: 26px; height: 26px; border-radius: 50%; border: 0;
  background: rgba(0,0,0,.6); color: #fff; font-size: 16px; line-height: 26px; padding: 0; cursor: pointer; z-index: 2;
}
.onizleme .ilerleme { position: absolute; left: 0; right: 0; bottom: 0; height: 5px; background: rgba(0,0,0,.25); z-index: 2; }
.onizleme .ilerleme i { display: block; height: 100%; width: 0; background: var(--basari); transition: width .2s; }
.satir-baslik { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.liste { list-style: none; padding: 0; margin: 0; }
.liste li { display: flex; gap: 10px; align-items: flex-start; padding: 10px 0; border-top: 1px solid var(--kenar); }
.liste li:first-child { border-top: 0; }
.liste .ad { font-weight: 600; font-size: 14px; word-break: break-word; }
.liste .ek { font-size: 12px; color: var(--soluk); }
.liste .sol { flex: 1; min-width: 0; }
.rozet { flex: none; font-size: 12px; font-weight: 600; border-radius: 999px; padding: 3px 10px; white-space: nowrap; }
.rozet.yeni { background: color-mix(in srgb, var(--uyari) 16%, transparent); color: var(--uyari); }
.rozet.alindi { background: color-mix(in srgb, var(--basari) 16%, transparent); color: var(--basari); }
.rozet.silindi { background: var(--ikinci); color: var(--soluk); }
.ipucu p { margin: 6px 0 10px; }
.alt { text-align: center; margin-top: 4px; }
.bildirim {
  position: fixed; left: 16px; right: 16px; bottom: calc(18px + env(safe-area-inset-bottom)); max-width: 528px; margin: 0 auto;
  background: #11132a; color: #fff; border: 1px solid rgba(255,255,255,.16); border-radius: 14px; padding: 13px 16px; font-size: 15px;
  box-shadow: 0 10px 30px rgba(0,0,0,.3); z-index: 10;
}
a { color: var(--vurgu); }
.metin h2 { font-size: 16px; margin: 18px 0 6px; }
.metin p, .metin li { font-size: 14px; }
.metin ul { padding-left: 20px; margin: 0 0 12px; }

/* Aşama 2: sekmeler ve iletiler */
.sekmeler { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 4px; background: var(--ikinci); padding: 4px; border-radius: 14px; margin-bottom: 14px; }
.sekmeler button {
  border: 0; background: transparent; color: var(--ikinci-yazi); font: 600 15px var(--font); padding: 10px 8px; border-radius: 11px; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 44px;
}
.sekmeler button[aria-selected="true"] { background: var(--vurgu); color: var(--vurgu-yazi); box-shadow: var(--golge); }
.sayac { background: var(--hata); color: #fff; border-radius: 999px; font-size: 12px; min-width: 20px; padding: 1px 6px; line-height: 18px; }
.ileti { position: relative; }
.ileti.yeni::before { content: ""; position: absolute; left: 0; top: 18px; bottom: 18px; width: 4px; border-radius: 0 4px 4px 0; background: var(--vurgu); }
.ileti-ust { display: flex; justify-content: space-between; gap: 10px; align-items: flex-start; }
.ileti h3 { margin: 0; font-size: 16px; color: var(--baslik); }
.ileti .tarih { font-size: 12px; color: var(--soluk); white-space: nowrap; }
.tutar { font-size: 26px; font-weight: 700; color: var(--baslik); margin: 8px 0 2px; font-variant-numeric: tabular-nums; }
.vade { font-size: 14px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.kalan { font-size: 12px; font-weight: 600; border-radius: 999px; padding: 2px 10px; }
.kalan.rahat { background: color-mix(in srgb, var(--basari) 15%, transparent); color: var(--basari); }
.kalan.yakin { background: color-mix(in srgb, var(--uyari) 18%, transparent); color: var(--uyari); }
.kalan.gecti { background: color-mix(in srgb, var(--hata) 15%, transparent); color: var(--hata); }
.ileti .aciklama { white-space: pre-line; font-size: 14px; margin: 10px 0 0; }
.ileti .dugme { margin-top: 12px; min-height: 42px; padding: 9px 14px; font-size: 15px; }
.tur-rozet { font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--vurgu); }
.bos h2 { margin-bottom: 4px; }
.sekmeler button { font-size: 14px; padding: 10px 4px; }

/* Aşama 3: talepler, özet, mesajlaşma */
.talep { border-left: 4px solid var(--uyari); }
.talep.gonderildi { border-left-color: var(--basari); }
.talep .ust-satir { display: flex; justify-content: space-between; gap: 8px; align-items: flex-start; }
.talep h3 { margin: 2px 0 0; font-size: 16px; color: var(--baslik); }
.talep .dugmeler { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 12px; }
.talep .dugmeler .dugme { margin: 0; }
.ozet-tablo { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 14px; font-variant-numeric: tabular-nums; }
.ozet-tablo td { padding: 7px 0; border-top: 1px solid var(--kenar); vertical-align: top; }
.ozet-tablo td.t { text-align: right; white-space: nowrap; font-weight: 600; padding-left: 10px; }
.ozet-tablo .v { display: block; font-size: 12px; color: var(--soluk); }
.ozet-tablo tr.grup td { border-top: 0; padding-top: 12px; font-size: 12px; font-weight: 700; color: var(--soluk); text-transform: uppercase; letter-spacing: .04em; }
.ozet-tablo tr.toplam td { border-top: 2px solid var(--kenar); font-weight: 700; font-size: 16px; color: var(--baslik); }
.sohbet-kart { padding: 0; overflow: hidden; display: flex; flex-direction: column; height: calc(100dvh - 210px); min-height: 360px; }
.sohbet { flex: 1; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 8px; }
.balon { max-width: 82%; padding: 9px 12px; border-radius: 16px; font-size: 15px; white-space: pre-wrap; word-break: break-word; }
.balon .z { display: block; font-size: 11px; opacity: .7; margin-top: 3px; text-align: right; }
.balon.buro { align-self: flex-start; background: var(--ikinci); color: var(--ikinci-yazi); border-bottom-left-radius: 5px; }
.balon.mukellef { align-self: flex-end; background: var(--vurgu); color: var(--vurgu-yazi); border-bottom-right-radius: 5px; }
.gun-ayrac { align-self: center; font-size: 12px; color: var(--soluk); margin: 6px 0; }
.sohbet .bos-sohbet { margin: auto; text-align: center; color: var(--soluk); font-size: 14px; max-width: 260px; }
.yazi-alani { display: flex; gap: 8px; padding: 10px; border-top: 1px solid var(--kenar); background: var(--kart); align-items: flex-end; }
.yazi-alani textarea {
  flex: 1; resize: none; font: inherit; color: var(--metin); background: var(--zemin); border: 1px solid var(--kenar);
  border-radius: 14px; padding: 11px 13px; max-height: 120px; outline: none;
}
.yazi-alani textarea:focus { border-color: var(--vurgu); }
.yazi-alani .dugme { min-height: 46px; width: 46px; padding: 0; flex: none; }
.yazi-alani .dugme svg { width: 22px; height: 22px; fill: currentColor; stroke: none; }
.talep .aciklama { white-space: pre-line; font-size: 14px; margin: 8px 0 0; }
body[data-sekme="mesaj"] #kur-ipucu, body[data-sekme="mesaj"] main > section > .alt { display: none !important; }