:root {
  --bg: #f4f6f9;
  --kart: #ffffff;
  --metin: #1c2733;
  --soluk: #6b7a8c;
  --cizgi: #dde3ea;
  --ana: #1d4ed8;
  --ana-acik: #eff4ff;
  --yesil: #16794a;
  --yesil-bg: #e8f6ef;
  --kirmizi: #b42318;
  --kirmizi-bg: #fdeceb;
  --turuncu: #b45309;
  --turuncu-bg: #fdf3e3;
  --mavi: #1d4ed8;
  --mavi-bg: #eff4ff;
  --gri: #55637a;
  --gri-bg: #eef1f5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--metin);
  font: 15px/1.55 "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
}

a { color: var(--ana); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ------------------------------------------------------------- üst menü */
.ust {
  background: #12263f;
  color: #fff;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  box-shadow: 0 1px 4px rgba(0,0,0,.15);
}
.ust .logo { color: #fff; font-weight: 700; font-size: 17px; padding: 14px 0; }
.ust .logo:hover { text-decoration: none; }
.ust nav { display: flex; gap: 4px; flex-wrap: wrap; }
.ust nav a {
  color: #c8d6e5; padding: 15px 12px; font-size: 14px;
  border-bottom: 3px solid transparent;
}
.ust nav a:hover { color: #fff; text-decoration: none; background: rgba(255,255,255,.06); }
.ust nav a.aktif { color: #fff; border-bottom-color: #4d8bf5; }
.ust nav a.cikis { color: #f3a3a3; margin-left: 8px; }

main { max-width: 1220px; margin: 0 auto; padding: 22px 20px 60px; }

/* ------------------------------------------------------------- başlıklar */
h1 { font-size: 23px; margin: 0 0 18px; }
h2 { font-size: 17px; margin: 0 0 14px; }
h3 { font-size: 14px; margin: 0 0 10px; color: var(--soluk); text-transform: uppercase; letter-spacing: .04em; }

.baslik-satir {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; flex-wrap: wrap; margin-bottom: 18px;
}
.baslik-satir h1 { margin: 0; }

/* ------------------------------------------------------------- kartlar */
.kart {
  background: var(--kart); border: 1px solid var(--cizgi); border-radius: 10px;
  padding: 18px; margin-bottom: 18px;
}
.kart.dar { padding: 14px 16px; }

.kutular { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; margin-bottom: 20px; }
.kutu {
  background: var(--kart); border: 1px solid var(--cizgi); border-radius: 10px;
  padding: 16px 18px;
}
.kutu .etiket { color: var(--soluk); font-size: 13px; margin-bottom: 6px; }
.kutu .deger { font-size: 24px; font-weight: 700; letter-spacing: -.02em; }
.kutu .alt { color: var(--soluk); font-size: 12px; margin-top: 4px; }
.kutu.yesil .deger { color: var(--yesil); }
.kutu.kirmizi .deger { color: var(--kirmizi); }
.kutu.mavi .deger { color: var(--mavi); }

.iki-kolon { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }
@media (max-width: 900px) { .iki-kolon { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------- tablolar */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th {
  text-align: left; padding: 9px 10px; color: var(--soluk);
  font-size: 12px; text-transform: uppercase; letter-spacing: .04em;
  border-bottom: 2px solid var(--cizgi); white-space: nowrap;
}
td { padding: 10px; border-bottom: 1px solid var(--cizgi); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #fafbfd; }
.sag { text-align: right; }
.orta { text-align: center; }
.tablo-kaydir { overflow-x: auto; }
.para { font-variant-numeric: tabular-nums; white-space: nowrap; }
.bos { color: var(--soluk); text-align: center; padding: 26px; }
.kucuk { font-size: 12px; color: var(--soluk); }

/* ------------------------------------------------------------- rozetler */
.rozet {
  display: inline-block; padding: 3px 9px; border-radius: 20px;
  font-size: 12px; font-weight: 600; white-space: nowrap;
}
.rozet.yesil { background: var(--yesil-bg); color: var(--yesil); }
.rozet.kirmizi { background: var(--kirmizi-bg); color: var(--kirmizi); }
.rozet.turuncu { background: var(--turuncu-bg); color: var(--turuncu); }
.rozet.mavi { background: var(--mavi-bg); color: var(--mavi); }
.rozet.gri { background: var(--gri-bg); color: var(--gri); }

.artan { color: var(--yesil); font-weight: 600; }
.azalan { color: var(--kirmizi); font-weight: 600; }

/* ------------------------------------------------------------- formlar */
.form-satir { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin-bottom: 14px; }
label { display: block; font-size: 13px; color: var(--soluk); margin-bottom: 5px; font-weight: 500; }
input, select, textarea {
  width: 100%; padding: 9px 11px; border: 1px solid var(--cizgi);
  border-radius: 7px; font: inherit; font-size: 14px; background: #fff; color: var(--metin);
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--ana); box-shadow: 0 0 0 3px var(--ana-acik);
}
textarea { min-height: 70px; resize: vertical; }

.dugme {
  display: inline-block; padding: 9px 18px; border-radius: 7px; border: 1px solid transparent;
  background: var(--ana); color: #fff; font: inherit; font-weight: 600; font-size: 14px;
  cursor: pointer; text-decoration: none;
}
.dugme:hover { background: #1740b0; text-decoration: none; color: #fff; }
.dugme.ikincil { background: #fff; color: var(--metin); border-color: var(--cizgi); }
.dugme.ikincil:hover { background: #f2f5f9; color: var(--metin); }
.dugme.tehlike { background: #fff; color: var(--kirmizi); border-color: #f0c4c0; }
.dugme.tehlike:hover { background: var(--kirmizi-bg); color: var(--kirmizi); }
.dugme.kucuk-d { padding: 5px 11px; font-size: 13px; }

.satir-ici { display: inline; }
.dugme-grup { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 6px; }

.filtre { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 16px; }
.filtre input, .filtre select { width: auto; min-width: 150px; }

/* ------------------------------------------------------------- uyarılar */
.uyari { padding: 11px 15px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; font-weight: 500; }
.uyari.ok { background: var(--yesil-bg); color: var(--yesil); }
.uyari.hata { background: var(--kirmizi-bg); color: var(--kirmizi); }

/* ------------------------------------------------------------- giriş */
.giris-kutu {
  max-width: 380px; margin: 90px auto; background: #fff; padding: 34px;
  border-radius: 12px; border: 1px solid var(--cizgi); box-shadow: 0 6px 24px rgba(18,38,63,.08);
}
.giris-kutu h1 { text-align: center; margin-bottom: 22px; }
.giris-kutu .dugme { width: 100%; margin-top: 8px; }

/* ------------------------------------------------------------- belgeler (fatura / ekstre) */
.belge {
  background: #fff; max-width: 820px; margin: 0 auto 18px; padding: 40px;
  border: 1px solid var(--cizgi); border-radius: 8px;
}
.belge-ust { display: flex; justify-content: space-between; gap: 30px; margin-bottom: 26px; }
.belge-ust .firma-adi { font-size: 19px; font-weight: 700; margin-bottom: 6px; }
.belge-ust .satirlar { font-size: 13px; color: #3d4a5c; line-height: 1.7; }
.belge h2.belge-baslik {
  text-align: center; font-size: 17px; letter-spacing: .1em; text-transform: uppercase;
  border-top: 2px solid var(--metin); border-bottom: 2px solid var(--metin);
  padding: 9px 0; margin: 0 0 8px;
}
.belge .donem { text-align: center; color: var(--soluk); font-size: 13px; margin-bottom: 22px; }
.belge table { font-size: 13px; }
.belge .toplamlar { margin-top: 22px; margin-left: auto; width: 320px; font-size: 14px; }
.belge .toplamlar div { display: flex; justify-content: space-between; padding: 7px 0; }
.belge .toplamlar div.sonuc {
  border-top: 2px solid var(--metin); margin-top: 6px; padding-top: 10px;
  font-weight: 700; font-size: 16px;
}
.belge .dipnot { margin-top: 30px; font-size: 12px; color: var(--soluk); border-top: 1px solid var(--cizgi); padding-top: 14px; }
.yazdir-cubuk { max-width: 820px; margin: 0 auto 16px; display: flex; gap: 10px; flex-wrap: wrap; }

/* ------------------------------------------------------------- ödeme hücresi */
.odeme-hucre summary { cursor: pointer; list-style: none; }
.odeme-hucre summary::-webkit-details-marker { display: none; }
.odeme-hucre summary:hover .rozet { filter: brightness(.94); }
.odeme-hucre .ok { opacity: .65; font-size: 10px; }
.odeme-hucre[open] .ok { transform: rotate(180deg); display: inline-block; }
.odeme-form .tam-btn { margin-top: 6px; }
.odeme-form {
  margin-top: 8px; padding: 10px; background: #f7f9fc;
  border: 1px solid var(--cizgi); border-radius: 7px; min-width: 210px;
}
.odeme-form form { display: flex; flex-direction: column; gap: 6px; }
.odeme-form input, .odeme-form select { font-size: 13px; padding: 6px 8px; }

/* ------------------------------------------------------------- mobil */
@media (max-width: 640px) {
  .ust { padding: 0 12px; gap: 0; }
  .ust .logo { font-size: 15px; padding: 10px 0; width: 100%; }
  .ust nav { width: 100%; gap: 0; padding-bottom: 4px; }
  .ust nav a { padding: 7px 10px; font-size: 13px; border-bottom-width: 2px; }
  main { padding: 14px 12px 40px; }
  h1 { font-size: 19px; }
  .kutular { grid-template-columns: 1fr 1fr; gap: 10px; }
  .kutu { padding: 11px 12px; }
  .kutu .etiket { font-size: 11px; }
  .kutu .deger { font-size: 17px; }
  .kutu .alt { font-size: 11px; }
  .kart { padding: 14px 12px; }
  .belge { padding: 20px 14px; }
  .belge-ust { flex-direction: column; gap: 16px; }
  .belge .toplamlar { width: 100%; }
  .filtre input, .filtre select { min-width: 0; width: 100%; }
  .filtre > div { flex: 1 1 140px; }
  table { font-size: 13px; }
  td, th { padding: 8px 7px; }
}

@media print {
  .ust, .yazdir-cubuk, .uyari { display: none !important; }
  body { background: #fff; }
  main { padding: 0; max-width: none; }
  .belge { border: none; padding: 0; max-width: none; margin: 0; }
}