:root {
  --koyu: #005a9e; --acik: #009cde; --koyu-2: #00467a;
  --zemin: #f4f7fa; --kart: #ffffff; --cizgi: #dde5ee; --yazi: #1f2937; --soluk: #6b7280;
  --yesil: #15803d; --kirmizi: #b91c1c; --sari: #b45309; --mavi-zemin: #eaf4fb;
  --golge: 0 1px 2px rgba(16, 38, 64, .06), 0 4px 16px rgba(16, 38, 64, .06);
  --yaricap: 10px;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  font-size: 14px; color: var(--yazi); background: var(--zemin);
}
* { box-sizing: border-box; }
body { margin: 0; }
.gizli { display: none !important; }
h1, h2, h3 { margin: 0; font-weight: 600; }
h2 { font-size: 20px; }
h3 { font-size: 15px; color: var(--koyu); }
a { color: var(--koyu); }
input, select, textarea, button { font: inherit; color: inherit; }
input, select, textarea {
  border: 1px solid var(--cizgi); border-radius: 7px; padding: 7px 10px; background: #fff; width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(0, 156, 222, .35); border-color: var(--acik); }
input:disabled, select:disabled, textarea:disabled { background: #f3f4f6; color: var(--soluk); }
textarea { min-height: 90px; resize: vertical; line-height: 1.45; }
label { display: grid; gap: 4px; font-size: 12.5px; color: var(--soluk); }
.sayi { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }

.btn { border: 1px solid var(--cizgi); background: #fff; border-radius: 7px; padding: 7px 14px; cursor: pointer; white-space: nowrap; }
.btn:hover { border-color: var(--acik); }
.btn.birincil { background: var(--koyu); border-color: var(--koyu); color: #fff; }
.btn.birincil:hover { background: var(--koyu-2); }
.btn.tehlike { color: var(--kirmizi); }
.btn.bag { border: none; background: none; color: var(--soluk); padding: 4px 0; text-align: left; }
.btn.bag:hover { color: var(--koyu); }
.btn.kucuk { padding: 3px 9px; font-size: 12.5px; }
.btn.genis { width: 100%; }
.btn:disabled { opacity: .5; cursor: default; }

/* Giriş */
.giris { min-height: 100vh; display: grid; place-items: center; padding: 16px;
  background: linear-gradient(135deg, var(--koyu) 0%, var(--acik) 100%); }
.giris-kart { background: #fff; padding: 32px; border-radius: 14px; width: min(380px, 100%); display: grid; gap: 14px; box-shadow: var(--golge); }
.giris-logo { height: 26px; justify-self: start; }
.giris-kart h1 { font-size: 18px; color: var(--koyu); }
.hata { color: var(--kirmizi); margin: 0; min-height: 18px; font-size: 13px; }

/* İskelet */
.uygulama { display: grid; grid-template-columns: 210px 1fr; min-height: 100vh; }
.yan { background: #fff; border-right: 1px solid var(--cizgi); padding: 20px 16px; display: flex; flex-direction: column; gap: 22px;
  position: sticky; top: 0; height: 100vh; }
.yan-logo { height: 22px; align-self: flex-start; }
.yan nav { display: grid; gap: 2px; }
.yan nav a { padding: 8px 10px; border-radius: 7px; text-decoration: none; color: var(--yazi); }
.yan nav a.aktif { background: var(--mavi-zemin); color: var(--koyu); font-weight: 600; }
.yan-alt { margin-top: auto; display: grid; gap: 2px; font-size: 13px; }
.yan-alt span { font-weight: 600; margin-bottom: 4px; }
.icerik { padding: 24px 28px 60px; min-width: 0; }
.ust { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.ust .bosluk { flex: 1; }

.kart { background: var(--kart); border: 1px solid var(--cizgi); border-radius: var(--yaricap); padding: 18px; box-shadow: var(--golge); }
.kart + .kart { margin-top: 16px; }
.kart-bas { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.kart-bas .bosluk { flex: 1; }
.izgara { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.izgara-2 { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
@media (max-width: 560px) { .izgara-2 { grid-template-columns: 1fr; } }

table.liste { width: 100%; border-collapse: collapse; }
table.liste th { text-align: left; font-size: 12px; font-weight: 600; color: var(--soluk); padding: 8px 10px; border-bottom: 1px solid var(--cizgi); white-space: nowrap; }
table.liste td { padding: 8px 10px; border-bottom: 1px solid #eef2f6; vertical-align: top; }
table.liste tr.tikla { cursor: pointer; }
table.liste tr.tikla:hover td { background: #f8fbfd; }
table.liste th.sayi { text-align: right; }
.bos { color: var(--soluk); text-align: center; padding: 28px; }

.rozet { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; background: #eef2f6; color: var(--soluk); }
.rozet.Taslak { background: #fef3c7; color: var(--sari); }
.rozet.Gonderildi { background: var(--mavi-zemin); color: var(--koyu); }
.rozet.Kabul { background: #dcfce7; color: var(--yesil); }
.rozet.Red, .rozet.Iptal { background: #fee2e2; color: var(--kirmizi); }
.etiket { display: inline-block; font-size: 11px; padding: 1px 7px; border-radius: 5px; background: var(--mavi-zemin); color: var(--koyu); margin-left: 6px; }
.etiket.sari { background: #fef3c7; color: var(--sari); }
.soluk { color: var(--soluk); }
.kucuk-yazi { font-size: 12px; }

.filtre { display: flex; gap: 6px; flex-wrap: wrap; }
.filtre button { border: 1px solid var(--cizgi); background: #fff; border-radius: 999px; padding: 4px 12px; cursor: pointer; font-size: 13px; }
.filtre button.aktif { background: var(--koyu); color: #fff; border-color: var(--koyu); }

/* Teklif editörü */
.duzen { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 16px; align-items: start; }
.ozet { position: sticky; top: 16px; }
.ozet .satir { display: flex; justify-content: space-between; gap: 10px; padding: 6px 0; border-bottom: 1px solid #eef2f6; font-size: 13px; }
.ozet .satir span:first-child { color: var(--soluk); }
.ozet .net { margin-top: 10px; background: var(--koyu); color: #fff; border-radius: 8px; padding: 12px 14px; display: flex; justify-content: space-between; align-items: baseline; }
.ozet .net strong { font-size: 20px; }
.uyari { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; border-radius: 8px; padding: 8px 10px; font-size: 12.5px; margin-top: 10px; }
.katalog { max-height: 460px; overflow: auto; border: 1px solid var(--cizgi); border-radius: 8px; }
.katalog .grup { position: sticky; top: 0; background: var(--mavi-zemin); color: var(--koyu); font-weight: 600; font-size: 12.5px; padding: 6px 10px; }
.katalog .kalem { display: grid; grid-template-columns: 82px 1fr auto 30px; gap: 8px; align-items: center; padding: 6px 10px; border-bottom: 1px solid #f0f3f7; font-size: 13px; }
.katalog .kalem:hover { background: #f8fbfd; }
.katalog .kalem.secili { background: #f0fdf4; }
.katalog .kod { color: var(--soluk); font-size: 12px; }
.ekle { width: 28px; height: 28px; border-radius: 7px; border: 1px solid var(--cizgi); background: #fff; cursor: pointer; color: var(--koyu); font-weight: 700; }
.ekle:hover { border-color: var(--acik); background: var(--mavi-zemin); }
tr.paket td { color: var(--soluk); font-size: 12.5px; background: #fafbfc; }
td input.adet { width: 72px; text-align: right; }
td input.fiyat { width: 110px; text-align: right; }
.iskonto-satir { display: grid; grid-template-columns: 26px 1fr 110px 120px auto auto; gap: 8px; align-items: center; padding: 6px 0; border-bottom: 1px solid #eef2f6; }
.iskonto-satir .sira { width: 24px; height: 24px; border-radius: 50%; background: var(--mavi-zemin); color: var(--koyu); display: grid; place-items: center; font-size: 12px; font-weight: 700; }
.iskonto-satir .sonuc { font-size: 12px; color: var(--soluk); text-align: right; white-space: nowrap; }
.oklar { display: flex; gap: 2px; }
.oklar button { width: 24px; height: 26px; border: 1px solid var(--cizgi); background: #fff; border-radius: 5px; cursor: pointer; padding: 0; }
.onay-kutu { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--soluk); flex-direction: row; white-space: nowrap; }
.onay-kutu input { width: auto; }
details summary { cursor: pointer; color: var(--koyu); font-weight: 600; }
details[open] summary { margin-bottom: 12px; }

/* Modal ve bildirim */
.modal { position: fixed; inset: 0; background: rgba(15, 23, 42, .45); display: grid; place-items: center; padding: 16px; z-index: 20; }
.modal-kutu { background: #fff; border-radius: 12px; padding: 22px; width: min(640px, 100%); max-height: 90vh; overflow: auto; display: grid; gap: 14px; }
.modal-alt { display: flex; justify-content: flex-end; gap: 8px; }
.bildirim { position: fixed; right: 20px; bottom: 20px; background: var(--yazi); color: #fff; padding: 10px 16px; border-radius: 8px; z-index: 30; max-width: 420px; }
.bildirim.hata { background: var(--kirmizi); }

@media (max-width: 1100px) { .duzen { grid-template-columns: 1fr; } .ozet { position: static; } }
@media (max-width: 760px) {
  .uygulama { grid-template-columns: 1fr; }
  .yan { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; padding: 10px 16px; gap: 12px; }
  .yan nav { display: flex; }
  .yan-alt { margin: 0; display: flex; gap: 10px; }
  .icerik { padding: 16px; }
  .iskonto-satir { grid-template-columns: 26px 1fr; }
  .tablo-kap { overflow-x: auto; }
}