:root {
  --zemin: #e4e5e1;      /* beton */
  --kart: #f7f7f4;
  --murekkep: #1c2226;
  --soluk: #5b6468;
  --cizgi: #c6c8c2;
  --sari: #f0b400;       /* iş güvenliği sarısı — tek vurgu */
  --sari-yazi: #1c2226;
  --tahta: #b98a52;
  --kirmizi: #b3261e;
  --uyari-zemin: #fff3cc;
  --hata-zemin: #fbe3e0;
  --golge: 0 1px 0 rgba(28, 34, 38, .08);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --zemin: #1d2124; --kart: #262b2f; --murekkep: #e8e9e5; --soluk: #a3aaad; --cizgi: #3a4145;
    --uyari-zemin: #3b3218; --hata-zemin: #3d2220; --kirmizi: #ff8a80; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --zemin: #1d2124; --kart: #262b2f; --murekkep: #e8e9e5; --soluk: #a3aaad; --cizgi: #3a4145;
  --uyari-zemin: #3b3218; --hata-zemin: #3d2220; --kirmizi: #ff8a80; color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--zemin); color: var(--murekkep);
  font: 16px/1.45 "Barlow", system-ui, sans-serif;
  font-variant-numeric: tabular-nums;
}
button, input, select { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--sari); outline-offset: 2px; }

/* ---------- üst şerit ---------- */
.ust {
  display: flex; align-items: center; gap: 16px; padding: 10px 20px;
  border-bottom: 4px solid var(--sari); background: var(--kart);
}
.marka { font: 700 26px/1 "Big Shoulders Stencil Display", "Barlow Condensed", sans-serif; letter-spacing: .02em; color: var(--murekkep); text-decoration: none; display: inline-flex; }
.marka svg { height: 30px; width: auto; display: block; }
.belge { font: 500 18px/1.2 "Barlow Condensed", sans-serif; color: var(--soluk); }
.belge b { color: var(--murekkep); font-weight: 600; }
.ust .bosluk { flex: 1; }
.dugme {
  border: 2px solid var(--murekkep); background: transparent; border-radius: 4px;
  padding: 7px 14px; font-weight: 600; cursor: pointer; min-height: 44px;
}
.dugme.ana { background: var(--sari); border-color: var(--sari); color: var(--sari-yazi); }
.dugme:disabled { opacity: .4; cursor: default; }
.dugme.kucuk { min-height: 32px; padding: 3px 10px; font-size: 14px; }

/* ---------- ekran sekmeleri ---------- */
.sekmeler-ust { display: flex; gap: 4px; flex-wrap: wrap; }
.sekmeler-ust button {
  border: 0; background: transparent; padding: 8px 12px; border-radius: 4px; cursor: pointer;
  font: 600 16px/1 "Barlow Condensed", sans-serif; color: var(--soluk); min-height: 40px;
}
.sekmeler-ust button[aria-selected="true"] { background: var(--murekkep); color: var(--kart); }
/* dil seçici (TR / EN) — birim seçicinin komşusu, aynı sakin ton */
.dil-sec { display: inline-flex; border: 1px solid var(--cizgi); border-radius: 4px; overflow: hidden; }
.dil-sec button {
  border: 0; background: transparent; color: var(--soluk); cursor: pointer;
  font: 600 14px/1 "Barlow Condensed", sans-serif; letter-spacing: .04em; padding: 0 10px; min-height: 32px;
}
.dil-sec button + button { border-left: 1px solid var(--cizgi); }
.dil-sec button[aria-pressed="true"] { background: var(--murekkep); color: var(--kart); }
@media print { .dil-sec { display: none !important; } }
.birim-sec { display: flex; align-items: center; gap: 6px; font-size: 14px; color: var(--soluk); }
.birim-sec select { padding: 6px; border: 1px solid var(--cizgi); border-radius: 4px; background: var(--zemin); }
.duzen[hidden], .ekran[hidden] { display: none !important; }
.ekran { padding: 18px 22px; min-height: calc(100vh - 68px); }

/* ---------- ana düzen ---------- */
.duzen { display: grid; grid-template-columns: 360px minmax(0, 1fr); min-height: calc(100vh - 68px); }
.yan { background: var(--kart); border-right: 1px solid var(--cizgi); padding: 18px; display: flex; flex-direction: column; gap: 18px; }
.yan h2, .sonuc h2 { font: 600 20px/1.2 "Barlow Condensed", sans-serif; margin: 0 0 8px; }

.birak {
  border: 2px dashed var(--soluk); border-radius: 6px; padding: 18px; text-align: center; cursor: pointer;
}
.birak.ustunde { border-color: var(--sari); background: var(--uyari-zemin); }
.birak p { margin: 0 0 4px; }
.birak small { color: var(--soluk); }
.birak input { display: none; }
.ornekler { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 6px; }
.ornek { background: none; border: 0; padding: 0; text-decoration: underline; color: var(--soluk); cursor: pointer; font-size: 14px; }

table.kalem { width: 100%; border-collapse: collapse; font-size: 14px; }
table.kalem th { text-align: left; font-weight: 600; color: var(--soluk); border-bottom: 1px solid var(--cizgi); padding: 4px 4px; }
table.kalem td { border-bottom: 1px solid var(--cizgi); padding: 5px 4px; vertical-align: top; }
table.kalem .ad { line-height: 1.25; }
table.kalem .kod { color: var(--soluk); font-size: 12px; }
table.kalem input { width: 64px; padding: 3px 4px; border: 1px solid var(--cizgi); border-radius: 3px; background: var(--zemin); text-align: right; }
table.kalem .sil { background: none; border: 0; color: var(--soluk); cursor: pointer; font-size: 18px; padding: 0 4px; }
table.kalem tr.sorunlu td { background: var(--hata-zemin); }
table.kalem .acik { color: var(--kirmizi); font-weight: 600; }
.ekle { display: grid; grid-template-columns: 1fr 72px auto; gap: 6px; margin-top: 8px; }
.ekle input { padding: 8px; border: 1px solid var(--cizgi); border-radius: 4px; background: var(--zemin); min-width: 0; }

.mesajlar { display: flex; flex-direction: column; gap: 6px; font-size: 14px; }
.mesaj { padding: 7px 10px; border-left: 4px solid; border-radius: 2px; }
.mesaj.hata { background: var(--hata-zemin); border-color: var(--kirmizi); }
.mesaj.uyari { background: var(--uyari-zemin); border-color: var(--sari); }
.mesaj.bilgi { background: transparent; border-color: var(--cizgi); color: var(--soluk); }

details.ayarlar summary { cursor: pointer; font-weight: 600; }
.ayar-izgara { display: grid; grid-template-columns: 1fr 90px; gap: 6px 10px; align-items: center; margin-top: 10px; font-size: 14px; }
.ayar-izgara input { padding: 5px; border: 1px solid var(--cizgi); border-radius: 3px; background: var(--zemin); text-align: right; }
.ayar-izgara input[aria-invalid="true"] { border-color: var(--kirmizi); }
.ayar-hata { grid-column: 1 / -1; color: var(--kirmizi); font-size: 13px; }
.ayar-hata:empty { display: none; }

/* ---------- sonuç ---------- */
.sonuc { padding: 18px 22px; display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.bos { margin: auto; text-align: center; color: var(--soluk); max-width: 420px; }
.bos-simge { display: block; width: 96px; height: 96px; margin: 0 auto 12px; color: var(--cizgi); }
.bos-simge svg { width: 100%; height: 100%; }
.kart-logo { display: none; }

.ozet { display: flex; flex-wrap: wrap; gap: 8px 28px; align-items: baseline; }
.ozet .buyuk { font: 700 40px/1 "Big Shoulders Stencil Display", sans-serif; }
.ozet span { color: var(--soluk); }
.ozet b { color: var(--murekkep); font-weight: 600; }

.sekmeler { display: flex; gap: 8px; flex-wrap: wrap; }
.sekme {
  border: 2px solid var(--murekkep); background: var(--kart); border-radius: 4px; padding: 6px 14px 8px;
  cursor: pointer; text-align: left; min-width: 150px;
}
.sekme[aria-selected="true"] { background: var(--sari); border-color: var(--sari); color: var(--sari-yazi); }
.sekme .no { font: 700 30px/1 "Big Shoulders Stencil Display", sans-serif; display: block; }
.sekme small { font-size: 13px; }

.palet-alan { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(300px, 1fr); gap: 16px; align-items: start; }
.sahne-kap { background: var(--kart); border: 1px solid var(--cizgi); border-radius: 6px; overflow: hidden; position: sticky; top: 12px; }
.sahne { height: min(62vh, 620px); position: relative; }
.sahne canvas { display: block; }
.ipucu {
  position: absolute; pointer-events: none; background: var(--murekkep); color: var(--kart);
  padding: 6px 9px; border-radius: 4px; font-size: 13px; max-width: 260px; display: none; z-index: 2;
}
.kaydirici { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-top: 1px solid var(--cizgi); }
.kaydirici input { flex: 1; accent-color: var(--sari); height: 32px; }
.kaydirici output { font-weight: 600; min-width: 110px; }
.sahne-not { font-size: 13px; color: var(--soluk); padding: 0 14px 10px; margin: 0; }

.katlar { display: flex; flex-direction: column; gap: 10px; }
.kat {
  background: var(--kart); border: 2px solid var(--cizgi); border-radius: 6px; padding: 10px 12px; cursor: pointer;
  display: grid; grid-template-columns: 150px 1fr; gap: 12px; text-align: left; width: 100%;
}
.kat[aria-current="true"] { border-color: var(--sari); }
.kat h3 { margin: 0 0 2px; font: 600 18px/1.2 "Barlow Condensed", sans-serif; }
.kat .olcu { color: var(--soluk); font-size: 13px; margin-bottom: 6px; }
.kat ul { margin: 0; padding: 0; list-style: none; font-size: 14px; }
.kat li { display: flex; gap: 6px; align-items: baseline; line-height: 1.3; margin-bottom: 2px; }
.kat li i { width: 10px; height: 10px; border-radius: 2px; flex: none; transform: translateY(1px); border: 1px solid rgba(0,0,0,.25); }
.kat svg { width: 150px; height: auto; }

/* ---------- yazdırma (palet başına kurulum kartı) ---------- */
.yazdir { display: none; }
@media print {
  @page { size: A4; margin: 12mm; }
  body { background: #fff; color: #000; }
  .ust, .duzen, .ekran { display: none !important; }
  .yazdir { display: block; }
  .kart-sayfa { page-break-after: always; break-after: page; }
  .kart-logo { display: block; color: #000; margin-bottom: 8px; }
  .kart-logo svg { height: 20px; width: auto; display: block; }
  .kart-sayfa:last-child { page-break-after: auto; break-after: auto; }
  .kart-baslik { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 3px solid #000; padding-bottom: 6px; margin-bottom: 10px; }
  .kart-baslik .no { font: 700 44px/1 "Big Shoulders Stencil Display", sans-serif; }
  .kart-katlar { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; }
  .kart-kat { break-inside: avoid; border: 1px solid #999; padding: 6px 8px; }
  .kart-kat h3 { margin: 0 0 4px; font: 600 15px "Barlow Condensed", sans-serif; }
  .kart-kat svg { width: 100%; height: auto; }
  .kart-kat ul { margin: 4px 0 0; padding-left: 16px; font-size: 11px; }
  .kart-not { font-size: 11px; margin-top: 8px; }
}

@media (max-width: 1100px) {
  .palet-alan { grid-template-columns: 1fr; }
  .sahne-kap { position: static; }
}
@media (max-width: 820px) {
  .duzen { grid-template-columns: 1fr; }
  .yan { border-right: 0; border-top: 1px solid var(--cizgi); order: 2; }  /* tablette önce palet, sonra sipariş */
  .ust { flex-wrap: wrap; padding: 10px 16px; }
  .sonuc { padding: 16px; }
  .kat { grid-template-columns: 1fr; }
  .kat svg { width: 100%; max-width: 320px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* ---------- boş durum: sipariş yokken üç yol (+ oturumda katalog) ---------- */
.bos-baslik { font: 600 24px/1.2 "Barlow Condensed", sans-serif; color: var(--murekkep); margin: 0 0 4px; }
.bos-secenekler { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 8px; text-align: left; }
.bos-secenek {
  width: 100%; display: flex; flex-direction: column; gap: 2px; min-height: 56px; padding: 10px 14px;
  border: 2px solid var(--murekkep); border-radius: 4px; background: var(--kart); color: var(--murekkep); cursor: pointer; text-align: left;
}
.bos-secenek b { font: 600 18px/1.2 "Barlow Condensed", sans-serif; }
.bos-secenek small { color: var(--soluk); font-size: 13px; }
.bos-secenek:hover { border-color: var(--sari); }