:root {
  --zemin: #f5f6f8;
  --kart: #ffffff;
  --cizgi: #e4e7ec;
  --cizgi-acik: #f0f2f5;
  --yazi: #1d2433;
  --soluk: #667085;
  --ana: #2f5bd3;
  --ana-acik: #eef3fe;
  --yesil: #117a45;
  --yesil-acik: #e8f6ee;
  --kirmizi: #c4322b;
  --kirmizi-acik: #fdecea;
  --turuncu: #b25e09;
  --turuncu-acik: #fff4e5;
  --golge: 0 1px 2px rgba(16, 24, 40, .05);
  --r: 10px;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body { font: 14px/1.45 "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  color: var(--yazi); background: var(--zemin); }
svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }

/* ---------- Yan menü ---------- */
.yan { width: 232px; flex: none; background: var(--kart); border-right: 1px solid var(--cizgi);
  display: flex; flex-direction: column; position: fixed; top: 0; bottom: 0; left: 0; z-index: 10; }
.logo { display: flex; gap: 10px; align-items: center; padding: 20px 18px; }
.logo-kutu { width: 34px; height: 34px; border-radius: 8px; background: var(--ana); color: #fff;
  display: grid; place-items: center; font-weight: 700; font-size: 13px; letter-spacing: .5px; }
.logo b { display: block; font-size: 15px; }
.logo small { color: var(--soluk); font-size: 12px; }
nav { display: flex; flex-direction: column; gap: 2px; padding: 6px 10px; }
nav a { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 8px;
  color: #475467; text-decoration: none; font-weight: 500; }
nav a:hover { background: var(--zemin); color: var(--yazi); }
nav a.aktif { background: var(--ana-acik); color: var(--ana); }
.yan-alt { margin-top: auto; padding: 16px; border-top: 1px solid var(--cizgi); display: flex; flex-direction: column; gap: 10px; }
.bilgi { display: flex; justify-content: space-between; font-size: 12px; gap: 8px; }
.bilgi span { color: var(--soluk); }
.bilgi b { font-weight: 600; text-align: right; }

/* ---------- Sayfa ---------- */
main { margin-left: 232px; min-width: 0; padding: 28px 32px 48px; }
.sayfa-bas { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
h1 { font-size: 22px; margin: 0 0 4px; font-weight: 650; letter-spacing: -.2px; }
.sayfa-bas p { margin: 0; color: var(--soluk); }
.sag { display: flex; gap: 8px; align-items: center; }
.kart { background: var(--kart); border: 1px solid var(--cizgi); border-radius: var(--r); box-shadow: var(--golge); margin-bottom: 16px; }

/* ---------- Form elemanları ---------- */
input, select { height: 36px; padding: 0 10px; border: 1px solid #d0d5dd; border-radius: 8px; font: inherit;
  color: var(--yazi); background: #fff; outline: none; transition: border-color .15s, box-shadow .15s; }
input:focus, select:focus { border-color: var(--ana); box-shadow: 0 0 0 3px rgba(47, 91, 211, .15); }
.ara { width: 300px; max-width: 100%; padding-left: 34px;
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2398a2b3' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M20 20l-3.5-3.5'/%3E%3C/svg%3E") no-repeat 10px center / 16px; }
.btn { height: 36px; padding: 0 16px; border-radius: 8px; border: 1px solid transparent; font: inherit; font-weight: 600;
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px; white-space: nowrap; }
.btn:disabled { opacity: .55; cursor: wait; }
.btn.birincil { background: var(--ana); color: #fff; }
.btn.birincil:hover { background: #2649b3; }
.btn.ikincil { background: #fff; color: var(--yazi); border-color: #d0d5dd; }
.btn.ikincil:hover { background: var(--zemin); }
.btn.tehlike { background: var(--kirmizi); color: #fff; }
.btn.tehlike:hover { background: #a3271f; }
.btn.tam { width: 100%; }
.sil { border: 0; background: none; color: #98a2b3; cursor: pointer; padding: 4px; border-radius: 6px; }
.sil:hover { color: var(--kirmizi); background: var(--kirmizi-acik); }

/* ---------- Araç çubuğu, tablo ---------- */
.arac { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding: 14px 16px; border-bottom: 1px solid var(--cizgi); }
.sayac { margin-left: auto; color: var(--soluk); font-size: 13px; }
.tablo-kap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 12px; font-weight: 600; color: var(--soluk); text-transform: uppercase; letter-spacing: .3px;
  padding: 10px 16px; background: #fafbfc; border-bottom: 1px solid var(--cizgi); white-space: nowrap; }
td { padding: 11px 16px; border-bottom: 1px solid var(--cizgi-acik); vertical-align: top; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: #fafbfd; }
.s { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.kod { font-family: ui-monospace, Consolas, monospace; font-size: 12.5px; color: #475467; }
.alt { display: block; color: var(--soluk); font-size: 12px; }
.birim { color: var(--soluk); font-size: 12px; margin-left: 3px; }
.bos { text-align: center; color: var(--soluk); padding: 40px 16px; }
tr.tik { cursor: pointer; }

/* ---------- Rozetler ---------- */
.rozet { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.rozet.g { background: var(--yesil-acik); color: var(--yesil); }
.rozet.c, .rozet.eksi { background: var(--kirmizi-acik); color: var(--kirmizi); }
.rozet.arti { background: var(--turuncu-acik); color: var(--turuncu); }
.rozet.sifir { background: var(--cizgi-acik); color: #98a2b3; }
.rozet.gri { background: var(--cizgi-acik); color: #475467; }
.rozet.mavi { background: var(--ana-acik); color: var(--ana); }

/* ---------- Giriş / çıkış formu ---------- */
.form { padding: 18px; display: flex; flex-direction: column; gap: 16px; }
.tip-sec { display: inline-flex; background: var(--zemin); padding: 4px; border-radius: 10px; align-self: flex-start; }
.tip-sec input { display: none; }
.tip-sec label { padding: 7px 22px; border-radius: 7px; cursor: pointer; font-weight: 600; color: var(--soluk); }
.tip-sec input:checked + label.g { background: #fff; color: var(--yesil); box-shadow: var(--golge), 0 0 0 1px var(--cizgi); }
.tip-sec input:checked + label.c { background: #fff; color: var(--kirmizi); box-shadow: var(--golge), 0 0 0 1px var(--cizgi); }
/* 1. satır: Tarih | Stok | Miktar | Cari — 2. satır: Açıklama (3 sütun geniş) | Kaydet */
.alanlar { display: grid; grid-template-columns: 150px 2fr 130px 1.6fr; gap: 12px; align-items: start; }
.aciklama-alan { grid-column: 1 / 4; }
.alan { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.alan > span { font-size: 12px; font-weight: 600; color: #475467; }
.alan em { font-style: normal; color: var(--ana); }
.ipucu { color: var(--soluk); font-size: 12px; min-height: 16px; }
.form-dugme { display: flex; gap: 8px; margin-top: 22px; }
.form-dugme .btn { min-width: 110px; }
.form-bas { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.form-baslik { font-weight: 600; color: var(--turuncu); }
.form.duzenleniyor { border-color: #f5b25c; box-shadow: 0 0 0 3px var(--turuncu-acik); }
td.islem { white-space: nowrap; }
.filtre-rozet { font-size: 13px; padding: 5px 6px 5px 12px; }
.filtre-rozet button { border: 0; background: none; color: inherit; font-size: 16px; line-height: 1; cursor: pointer; padding: 0 4px; }
.sil.duzen:hover { color: var(--ana); background: var(--ana-acik); }

/* ---------- Aylık ---------- */
.ozet { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.ozet div { background: var(--kart); border: 1px solid var(--cizgi); border-radius: var(--r); padding: 10px 16px; min-width: 150px; }
.ozet span { display: block; font-size: 12px; color: var(--soluk); }
.ozet b { font-size: 18px; font-weight: 650; }
.ozet .kirmizi b { color: var(--kirmizi); }
.segment { display: inline-flex; background: var(--zemin); padding: 3px; border-radius: 8px; }
.segment button { border: 0; background: none; padding: 6px 12px; border-radius: 6px; font: inherit; font-size: 13px; color: var(--soluk); cursor: pointer; font-weight: 500; }
.segment button.secili { background: #fff; color: var(--yazi); box-shadow: var(--golge), 0 0 0 1px var(--cizgi); }
table.aylik td.bizim { font-weight: 650; }
table.aylik td:first-child { min-width: 200px; }
table.aylik th, table.aylik td { padding-left: 10px; padding-right: 10px; }
table.aylik th:first-child, table.aylik td:first-child { padding-left: 16px; }
table.aylik th:last-child, table.aylik td:last-child { padding-right: 16px; }
.neden { font-size: 12.5px; color: #475467; min-width: 200px; }
.neden div + div { margin-top: 2px; }

/* ---------- Kapatma penceresi ---------- */
dialog { border: 0; padding: 0; border-radius: 14px; width: min(980px, calc(100vw - 32px)); max-height: calc(100vh - 48px);
  box-shadow: 0 20px 50px rgba(16, 24, 40, .25); color: var(--yazi); }
dialog::backdrop { background: rgba(16, 24, 40, .45); }
.pencere { display: flex; flex-direction: column; max-height: calc(100vh - 48px); }
.pencere-bas { display: flex; justify-content: space-between; align-items: flex-start; padding: 20px 24px 14px; border-bottom: 1px solid var(--cizgi); }
.pencere-bas h2 { margin: 0 0 2px; font-size: 19px; }
.pencere-bas p { margin: 0; color: var(--soluk); }
.kapat-x { border: 0; background: none; font-size: 26px; line-height: 1; color: var(--soluk); cursor: pointer; padding: 0 4px; }
.pencere-govde { padding: 8px 24px 20px; overflow-y: auto; }
.pencere-govde h3 { font-size: 14px; margin: 20px 0 10px; }
.pencere-alt { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 14px 24px; border-top: 1px solid var(--cizgi); background: #fafbfc; border-radius: 0 0 14px 14px; }
.pencere-alt small { color: var(--soluk); }
.uyari { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-top: 14px; padding: 12px 14px;
  background: var(--ana-acik); border-radius: 10px; }
.uyari small { color: var(--soluk); }
.uyari.kilitli { background: var(--kirmizi-acik); box-shadow: 0 0 0 1px #f0a5a0; }
.kilit-yazi { margin-top: 6px; color: var(--kirmizi); font-weight: 600; font-size: 13px; }
.uyari.kilitli .btn { background: var(--ana); color: #fff; border-color: var(--ana); }.secenekler { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.secenek { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border: 1px solid var(--cizgi); border-radius: 10px; cursor: pointer; }
.secenek input { height: auto; margin-top: 3px; accent-color: var(--ana); }
.secenek b { display: block; }
.secenek small { color: var(--soluk); }
.secenek:has(input:checked) { border-color: var(--ana); background: var(--ana-acik); box-shadow: 0 0 0 1px var(--ana); }
.fark-kart { border: 1px solid var(--cizgi); border-radius: 10px; margin-bottom: 10px; overflow: hidden; }
.fark-ust { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 14px; background: #fafbfc; border-bottom: 1px solid var(--cizgi-acik); flex-wrap: wrap; }
.fark-rakam { display: flex; gap: 18px; font-variant-numeric: tabular-nums; }
.fark-rakam span { display: block; font-size: 11px; color: var(--soluk); text-transform: uppercase; letter-spacing: .3px; }
.fark-rakam b { font-weight: 650; }
.fark-govde { display: grid; grid-template-columns: 1.4fr 1fr; gap: 16px; padding: 12px 14px; }
.nedenler { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 6px; font-size: 13px; }
.nedenler li { padding-left: 14px; position: relative; }
.nedenler li::before { content: ""; position: absolute; left: 0; top: 7px; width: 6px; height: 6px; border-radius: 50%; background: var(--turuncu); }
.nedenler li.bilgi::before { background: #98a2b3; }
.karar { display: flex; flex-direction: column; gap: 8px; }
.karar-satir { display: flex; gap: 8px; }
.karar select { flex: 1; }
.karar input.manuel { width: 120px; }
.karar .sonuc { font-size: 12.5px; color: var(--soluk); }
.karar .sonuc b { color: var(--yazi); }
.fark-yok { padding: 28px; text-align: center; color: var(--yesil); background: var(--yesil-acik); border-radius: 10px; font-weight: 600; }

/* ---------- Takibi başlat ---------- */
.baslat-kutu { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; padding: 20px 22px;
  border-color: #f5b25c; background: var(--turuncu-acik); flex-wrap: wrap; }
.baslat-kutu h2 { margin: 0 0 6px; font-size: 17px; }
.baslat-kutu p { margin: 0 0 4px; max-width: 720px; color: #475467; }
.baslat-islem { display: flex; gap: 10px; align-items: flex-end; }
.baslat-islem select { min-width: 150px; }

/* ---------- Ay kapatma hatırlatması ---------- */
.hatirlatma { display: flex; align-items: center; gap: 14px; padding: 12px 16px; border-color: #f5b25c; background: var(--turuncu-acik); }
.hatirlatma > svg { width: 22px; height: 22px; color: var(--turuncu); }
.hatirlatma div { flex: 1; }
.hatirlatma b { display: block; color: var(--turuncu); }
.hatirlatma span { font-size: 13px; color: #475467; }

/* ---------- Giriş sayfası ---------- */
.giris-sayfa { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.giris-kart { width: 100%; max-width: 360px; background: var(--kart); border: 1px solid var(--cizgi); border-radius: 14px;
  box-shadow: 0 10px 30px rgba(16, 24, 40, .08); padding: 8px 24px 24px; display: flex; flex-direction: column; gap: 14px; }
.giris-kart .logo { padding: 18px 0 6px; }
.giris-hata { background: var(--kirmizi-acik); color: var(--kirmizi); padding: 8px 12px; border-radius: 8px; font-size: 13px; }
.oturum { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.oturum b { display: flex; align-items: center; gap: 8px; }
.avatar { width: 28px; height: 28px; border-radius: 50%; background: var(--ana-acik); color: var(--ana); display: grid; place-items: center; font-size: 12px; font-weight: 700; }
.oturum button { border: 0; background: none; color: var(--soluk); cursor: pointer; font: inherit; font-size: 12px; padding: 4px 6px; border-radius: 6px; }
.oturum button:hover { background: var(--zemin); color: var(--kirmizi); }

/* ---------- Bildirim ---------- */
#mesaj { position: fixed; bottom: 20px; right: 20px; padding: 12px 18px; border-radius: 10px; background: #1d2433; color: #fff;
  box-shadow: 0 10px 30px rgba(16, 24, 40, .25); z-index: 99; max-width: 420px; }
#mesaj.hata { background: var(--kirmizi); }

/* ---------- Dar ekran ---------- */
@media (max-width: 860px) {
  .yan { width: auto; position: sticky; bottom: auto; border-right: 0; border-bottom: 1px solid var(--cizgi); }
  main { margin-left: 0; }
  .logo { padding: 12px 16px; }
  nav { flex-direction: row; overflow-x: auto; padding: 0 8px 8px; }
  nav a { white-space: nowrap; }
  .yan-alt { flex-direction: row; flex-wrap: wrap; align-items: center; padding: 10px 16px; }
  .yan-alt .btn { width: auto; margin-left: auto; }
  main { padding: 16px; }
  .secenekler, .fark-govde, .alanlar { grid-template-columns: 1fr; }
  .aciklama-alan { grid-column: auto; }
  .form-dugme { margin-top: 0; }
  .ara { width: 100%; }
}