/* ============================================================
   Muhasebe Fatura - Tasarim v2 (sifirdan)
   Token kaynagi: SAP Horizon (sap_horizon css_variables.css) BIREBIR.
   Kabuk: SAP Fiori shell bar + SAP B1 sol modul agaci + DIA sekmeli
   calisma alani. Tablo olculeri: IBM Carbon data table.
   Bkz docs/tasarim-spesifikasyonu.md
   ============================================================ */

:root {
  /* --- SAP Horizon renkleri (kaynak koddan) --- */
  --brand:              #0070f2;
  --brand-hover:        #0064d9;
  --brand-active:       #0057d2;
  --link:               #0064d9;
  --focus:              #0032a5;
  --shell-bg:           #ffffff;
  --shell-text:         #131e29;
  --nav-bg:             #ffffff;   /* sol modul agaci zemini (shell'den bagimsiz) */
  --page-bg:            #f5f6f7;
  --surface:            #ffffff;
  --text:               #131e29;
  --label:              #556b82;
  --list-border:        #e5e5e5;
  --list-header-border: #a8b2bd;
  --list-hover:         #eaecee;
  --list-selected:      #ebf8ff;
  --button-border:      #bcc3ca;
  --field-border:       #556b81;
  --group-border:       #d9d9d9;
  --fg-border:          #758ca4;
  --positive:           #256f3a;
  --negative:           #aa0808;
  --critical:           #e76500;
  --informative:        #0070f2;
  --positive-bg:        #f5fae5;
  --negative-bg:        #ffeaf4;
  --critical-bg:        #fff8d6;
  --informative-bg:     #e6f4ff;
  --neutral-bg:         #f5f6f7;

  /* --- olculer --- */
  --font: "Segoe UI", "72", system-ui, -apple-system, Arial, sans-serif;
  --mono: "Cascadia Mono", Consolas, ui-monospace, monospace;
  --fs: 14px;                 /* sapFontSize .875rem */
  --el-h: 36px;               /* sapElement_Height 2.25rem */
  --shell-h: 44px;            /* Fiori shell bar */
  --tab-h: 36px;
  --nav-w: 240px;
  --row-h: 40px;              /* Carbon md */
  --row-h-sm: 32px;           /* Carbon sm */
  --head-h: 32px;
  --cell-px: 16px;            /* Carbon $spacing-05 */
  --radius: 8px;              /* Horizon buton/kart */
  --radius-sm: 4px;

  --shadow-1: 0 0 0 1px rgba(85,107,129,.10), 0 2px 8px rgba(34,54,73,.10);
  --shadow-2: 0 0 0 1px rgba(85,107,129,.12), 0 8px 24px rgba(34,54,73,.16);

  --z-nav: 20; --z-shell: 30; --z-menu: 40; --z-modal: 50;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page-bg);
  color: var(--text);
  font: var(--fs)/1.45 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; border-radius: var(--radius-sm); }
button { font: inherit; }

/* ============================================================ KABUK */

.kabuk { display: grid; grid-template-rows: var(--shell-h) 1fr; min-height: 100vh; }

/* --- Ust cubuk (Fiori shell bar) --- */
.shell {
  position: sticky; top: 0; z-index: var(--z-shell);
  height: var(--shell-h);
  background: var(--shell-bg);
  border-bottom: 1px solid var(--list-border);
  box-shadow: 0 1px 0 rgba(0,0,0,.02), 0 2px 8px rgba(34,54,73,.06);
  display: grid;
  grid-template-columns: var(--nav-w) 1fr auto;
  align-items: center;
  padding-right: 12px;
}
.shell-marka {
  display: flex; align-items: center; gap: 10px;
  padding: 0 16px; height: 100%;
  border-right: 1px solid var(--list-border);
}
.shell-logo {
  width: 26px; height: 26px; border-radius: 6px;
  background: var(--brand); color: #fff;
  display: grid; place-items: center;
  font-weight: 700; font-size: 14px;
}
.shell-marka-ad { font-weight: 600; font-size: 14px; color: var(--shell-text); }
.shell-orta { display: flex; align-items: center; gap: 10px; padding: 0 16px; min-width: 0; }
.shell-firma { display: flex; align-items: center; gap: 6px; }
.shell-firma label { font-size: 12px; color: var(--label); }
.shell-firma select {
  height: 30px; font-size: 13px; padding: 0 28px 0 8px;
  border: 1px solid var(--button-border); border-radius: var(--radius);
  background: var(--surface); color: var(--text); min-width: 220px; max-width: 360px;
}
.shell-ara {
  flex: 1; max-width: 520px; height: 30px;
  display: flex; align-items: center; gap: 8px;
  padding: 0 10px; border: 1px solid var(--button-border);
  border-radius: var(--radius); background: var(--surface);
  color: var(--label); font-size: 13px; cursor: pointer;
}
.shell-ara kbd {
  margin-left: auto; font: 11px var(--font); color: var(--label);
  border: 1px solid var(--button-border); border-radius: 4px; padding: 0 5px; background: #fff;
}
.shell-sag { display: flex; align-items: center; gap: 8px; }
.ortam-rozet {
  font-size: 11.5px; font-weight: 600; letter-spacing: .02em;
  padding: 3px 9px; border-radius: 999px; border: 1px solid;
}
.ortam-rozet.test { color: var(--informative); background: var(--informative-bg); border-color: #b1d6fb; }
.ortam-rozet.canli { color: var(--negative); background: var(--negative-bg); border-color: #f4a6bf; }
.kullanici-menu > summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; gap: 8px;
  height: 30px; padding: 0 8px 0 4px;
  border-radius: var(--radius); font-size: 13px;
}
.kullanici-menu > summary::-webkit-details-marker { display: none; }
.kullanici-menu > summary:hover { background: var(--list-hover); }
.avatar {
  width: 26px; height: 26px; border-radius: 50%;
  background: #354a5f; color: #fff; display: grid; place-items: center;
  font-size: 12px; font-weight: 600;
}
.kullanici-menu { position: relative; }
.kullanici-menu .menu { right: 0; left: auto; top: calc(100% + 6px); min-width: 220px; }

/* --- Govde: sol modul agaci + calisma alani --- */
.govde-izgara { display: grid; grid-template-columns: var(--nav-w) 1fr; min-height: calc(100vh - var(--shell-h)); }

.nav {
  position: sticky; top: var(--shell-h); height: calc(100vh - var(--shell-h));
  overflow-y: auto; background: var(--nav-bg);
  border-right: 1px solid var(--list-border);
  padding: 8px 8px 16px;
  z-index: var(--z-nav);
}
.nav-modul { margin-bottom: 4px; }
.nav-modul > summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; gap: 8px;
  height: 34px; padding: 0 10px; border-radius: var(--radius);
  font-weight: 600; font-size: 13px; color: var(--text);
}
.nav-modul > summary::-webkit-details-marker { display: none; }
.nav-modul > summary::after {
  content: ""; margin-left: auto; width: 6px; height: 6px;
  border-right: 1.5px solid var(--label); border-bottom: 1.5px solid var(--label);
  transform: rotate(-45deg); transition: transform .12s;
}
.nav-modul[open] > summary::after { transform: rotate(45deg); }
.nav-modul > summary:hover { background: var(--list-hover); }
.nav-grup {
  font-size: 10.5px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  color: var(--label); padding: 8px 12px 3px 34px;
}
.nav a {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  height: 30px; padding: 0 10px 0 34px; border-radius: var(--radius);
  color: var(--text); font-size: 13px;
}
.nav a:hover { background: var(--list-hover); text-decoration: none; }
.nav a.etkin { background: var(--list-selected); color: var(--brand-hover); font-weight: 600; box-shadow: inset 3px 0 0 var(--brand); }
.nav .adet {
  font-size: 11px; color: var(--label); font-variant-numeric: tabular-nums;
  background: var(--neutral-bg); border-radius: 999px; padding: 0 6px; min-width: 20px; text-align: center;
}
.nav-alt { margin-top: 12px; padding: 10px 12px; font-size: 11.5px; color: var(--label); border-top: 1px solid var(--list-border); }

.calisma { min-width: 0; display: flex; flex-direction: column; }

/* --- Sekme seridi (DIA calisma alani) --- */
.sekmeler {
  height: var(--tab-h); background: var(--nav-bg);
  border-bottom: 1px solid var(--list-border);
  display: flex; align-items: flex-end; gap: 2px; padding: 0 12px;
  overflow-x: auto;
}
.sekmeler a, .sekmeler span {
  height: 30px; padding: 0 12px; display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--label); white-space: nowrap;
  border: 1px solid transparent; border-bottom: none;
  border-radius: 6px 6px 0 0;
}
.sekmeler a:hover { color: var(--text); background: var(--list-hover); text-decoration: none; }
.sekmeler .etkin {
  color: var(--text); font-weight: 600; background: var(--page-bg);
  border-color: var(--list-border); position: relative; top: 1px;
}
.sekmeler .kisayol { font-size: 11px; color: var(--label); }

/* --- Sayfa --- */
.sayfa { padding: 16px 20px 56px; }

/* Dinamik baslik (Fiori object page / list report header) */
.sayfa-baslik {
  background: var(--surface); border: 1px solid var(--list-border);
  border-radius: var(--radius); box-shadow: var(--shadow-1);
  padding: 14px 18px; margin-bottom: 14px;
  display: flex; flex-wrap: wrap; align-items: flex-start; gap: 12px 20px;
}
.sayfa-baslik .metin { min-width: 0; flex: 1 1 320px; }
.sayfa-baslik h1 { margin: 0; font-size: 20px; font-weight: 700; letter-spacing: -.01em; line-height: 1.2; }
.sayfa-baslik .alt { margin: 4px 0 0; color: var(--label); font-size: 13px; display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; }
.sayfa-baslik .eylemler { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-left: auto; }
.facetler { display: flex; flex-wrap: wrap; gap: 24px; width: 100%; padding-top: 10px; border-top: 1px solid var(--list-border); margin-top: 4px; }
.facet .l { font-size: 11.5px; color: var(--label); }
.facet .v { font-size: 18px; font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.facet .v.pos { color: var(--positive); }
.facet .v.neg { color: var(--negative); }
.facet .v.crit { color: var(--critical); }

/* Anchor bar (Fiori) */
.anchor {
  position: sticky; top: calc(var(--shell-h)); z-index: 5;
  display: flex; gap: 2px; overflow-x: auto;
  background: var(--page-bg); padding: 4px 0 8px; margin: -4px 0 8px;
}
.anchor a {
  padding: 6px 12px; font-size: 13px; color: var(--label); border-radius: var(--radius);
  white-space: nowrap;
}
.anchor a:hover, .anchor a:target { color: var(--brand-hover); background: var(--surface); text-decoration: none; }

/* Bolum (Fiori section) */
.bolum { margin-bottom: 18px; scroll-margin-top: 96px; }
.bolum-baslik { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin: 0 0 8px; }
.bolum-baslik h2 { margin: 0; font-size: 15px; font-weight: 700; }
.bolum-baslik .not { font-size: 12px; color: var(--label); }

/* Kart / grup (Horizon tile) */
.kart {
  background: var(--surface); border: 1px solid var(--list-border);
  border-radius: var(--radius); box-shadow: var(--shadow-1);
}
.kart-ic { padding: 14px 16px; }
.kart h3 { margin: 0 0 10px; font-size: 13px; font-weight: 700; color: var(--text); }
.kart-izgara { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 12px; }

/* Anahtar-deger form (Fiori display form) */
.kv { display: grid; grid-template-columns: minmax(120px, 40%) 1fr; gap: 6px 14px; margin: 0; }
.kv dt { color: var(--label); font-size: 13px; }
.kv dd { margin: 0; font-size: 13px; overflow-wrap: anywhere; }

/* Yerlesim: icerik + FactBox (BC) */
.ile-factbox { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 14px; align-items: start; }
.factbox { position: sticky; top: calc(var(--shell-h) + 12px); }
.factbox .kart + .kart { margin-top: 12px; }
@media (max-width: 1100px) { .ile-factbox { grid-template-columns: 1fr; } .factbox { position: static; } }

/* ============================================================ LISTE (Fiori list report) */

.filtre-cubugu {
  background: var(--surface); border: 1px solid var(--list-border);
  border-radius: var(--radius); padding: 10px 14px; margin-bottom: 12px;
  display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: flex-end;
}
.filtre-alan { display: flex; flex-direction: column; gap: 3px; min-width: 160px; }
.filtre-alan label { font-size: 11.5px; color: var(--label); }
.filtre-cubugu .eylem { margin-left: auto; display: flex; gap: 8px; align-items: center; }

.tablo-arac {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 10px 14px; border-bottom: 1px solid var(--list-border);
}
.tablo-arac .baslik { font-weight: 700; font-size: 14px; }
.tablo-arac .adet { color: var(--label); font-size: 13px; }
.tablo-arac .sag { margin-left: auto; display: flex; gap: 8px; align-items: center; }

.tablo-kutu { background: var(--surface); border: 1px solid var(--list-border); border-radius: var(--radius); box-shadow: var(--shadow-1); overflow: hidden; }
.tablo-kaydir { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th {
  height: var(--head-h); padding: 0 var(--cell-px);
  text-align: left; font-size: 12px; font-weight: 600; color: var(--label);
  background: var(--surface); border-bottom: 1px solid var(--list-header-border);
  white-space: nowrap; position: sticky; top: 0; z-index: 2;
}
tbody td { height: var(--row-h); padding: 0 var(--cell-px); border-bottom: 1px solid var(--list-border); vertical-align: middle; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: var(--list-hover); }
tbody tr.secili td { background: var(--list-selected); }
tfoot td { height: var(--row-h); padding: 0 var(--cell-px); border-top: 1px solid var(--list-header-border); font-weight: 600; background: var(--surface); }
.sik tbody td, .sik thead th { height: var(--row-h-sm); }
.sayi { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.kod { font-family: var(--mono); font-size: 12px; white-space: nowrap; }
.sessiz, .sonuk { color: var(--label); }
.kalin { font-weight: 600; }
.eksi { color: var(--negative); }
.arti { color: var(--positive); }
.bos { padding: 36px 20px; text-align: center; color: var(--label); }
.bos p { margin: 0 0 10px; }

/* SAP B1 baglanti oku */
.baglanti { color: var(--critical); font-weight: 700; text-decoration: none; margin-left: 4px; }
.baglanti:hover { text-decoration: none; }

/* ============================================================ BILESENLER */

/* Dugmeler (Horizon) */
.dugme {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: var(--el-h); padding: 0 14px;
  border: 1px solid var(--button-border); border-radius: var(--radius);
  background: var(--surface); color: var(--brand-hover); font-weight: 600; font-size: 13px;
  cursor: pointer; white-space: nowrap; text-decoration: none;
  transition: background .1s, border-color .1s;
}
.dugme:hover { background: var(--list-hover); text-decoration: none; }
.dugme:active { background: #e5eaee; }
.dugme.birincil { background: var(--brand); border-color: var(--brand); color: #fff; }
.dugme.birincil:hover { background: var(--brand-hover); border-color: var(--brand-hover); }
.dugme.tehlike { color: var(--negative); }
.dugme.kucuk { height: 28px; padding: 0 10px; font-size: 12.5px; }
.dugme kbd { font: 11px var(--font); opacity: .8; border: 1px solid currentColor; border-radius: 3px; padding: 0 4px; margin-left: 2px; }
.dugme.birincil kbd { border-color: rgba(255,255,255,.6); }

/* Acilir menu (details) */
.acilir { position: relative; display: inline-block; }
.acilir > summary { list-style: none; }
.acilir > summary::-webkit-details-marker { display: none; }
.menu {
  position: absolute; left: 0; top: calc(100% + 6px); z-index: var(--z-menu);
  min-width: 240px; background: var(--surface);
  border: 1px solid var(--list-border); border-radius: var(--radius); box-shadow: var(--shadow-2);
  padding: 6px; display: flex; flex-direction: column;
}
.menu a, .menu button {
  text-align: left; font-size: 13px; padding: 8px 10px; border-radius: 6px;
  border: none; background: none; color: var(--text); cursor: pointer; text-decoration: none;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.menu a:hover, .menu button:hover { background: var(--list-hover); text-decoration: none; }
.menu .grup { font-size: 10.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--label); padding: 8px 10px 3px; }
.menu hr { border: 0; border-top: 1px solid var(--list-border); margin: 4px 0; }
.menu kbd { font: 11px var(--font); color: var(--label); }

/* Rozet / durum (Horizon semantic) */
.rozet {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 11.5px; font-weight: 600; letter-spacing: .01em;
  padding: 2px 8px; border-radius: 999px; border: 1px solid transparent; white-space: nowrap;
  color: var(--label); background: var(--neutral-bg); border-color: #d5dadf;
}
.rozet.pos { color: var(--positive); background: var(--positive-bg); border-color: #b3d68e; }
.rozet.neg { color: var(--negative); background: var(--negative-bg); border-color: #f4a6bf; }
.rozet.crit { color: #8b3d00; background: var(--critical-bg); border-color: #f0c96a; }
.rozet.info { color: var(--brand-hover); background: var(--informative-bg); border-color: #b1d6fb; }

/* Form alanlari (Horizon field: koyu kenarlik #556b81) */
label.etiket, .alan > label { font-size: 12.5px; color: var(--label); }
input[type="text"], input[type="search"], input[type="date"], input[type="password"],
input[type="number"], select, textarea {
  font: inherit; font-size: 13.5px; width: 100%; height: var(--el-h);
  padding: 0 10px; border: 1px solid var(--field-border); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--text);
}
textarea { height: auto; padding: 8px 10px; }
input:hover, select:hover, textarea:hover { border-color: var(--text); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 1px var(--brand) inset; }
input::placeholder { color: #8396a8; }
input.sayi-girdi { text-align: right; font-variant-numeric: tabular-nums; }
input[type="checkbox"] { width: auto; height: auto; }

.form-kutu { background: var(--surface); border: 1px solid var(--list-border); border-radius: var(--radius); box-shadow: var(--shadow-1); padding: 16px 18px; }
.form-izgara { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px 16px; }
.alan { display: flex; flex-direction: column; gap: 4px; }
.alan.genis { grid-column: 1 / -1; }
.alan .ipucu { font-size: 11.5px; color: var(--label); }
.form-ayrac { grid-column: 1 / -1; height: 1px; background: var(--list-border); margin: 6px 0; }
.form-eylem { display: flex; gap: 8px; align-items: center; margin-top: 16px; }

/* Footer toolbar (Fiori) */
.footer-arac {
  position: sticky; bottom: 0; z-index: 4;
  background: var(--surface); border-top: 1px solid var(--list-border);
  box-shadow: 0 -2px 8px rgba(34,54,73,.06);
  padding: 10px 16px; margin: 16px -20px -56px;
  display: flex; gap: 8px; align-items: center; justify-content: flex-end;
}

/* Sekmeli belge (SAP B1) */
.belge-sekme { display: flex; gap: 2px; border-bottom: 1px solid var(--list-header-border); margin-bottom: 12px; }
.belge-sekme a, .belge-sekme button {
  height: 34px; padding: 0 14px; display: inline-flex; align-items: center;
  font: inherit; font-size: 13px; color: var(--label); background: none; border: none;
  border-bottom: 2px solid transparent; margin-bottom: -1px; cursor: pointer;
}
.belge-sekme .etkin, .belge-sekme [aria-selected="true"] { color: var(--brand-hover); border-bottom-color: var(--brand); font-weight: 600; }
.js-var .sekme-panel[hidden] { display: none; }

/* Ozet blogu (DIA sirasi) */
.ozet-blok { margin-left: auto; min-width: 320px; max-width: 420px; }
.ozet-blok table { min-width: 0; }
.ozet-blok td { height: 34px; }
.ozet-blok tr.genel td { border-top: 2px solid var(--text); font-weight: 700; font-size: 15px; background: var(--neutral-bg); }

/* Mesaj kutulari (Horizon message strip) */
.mesaj { border: 1px solid; border-radius: var(--radius); padding: 10px 14px; font-size: 13px; margin-bottom: 12px; }
.mesaj.uyari { color: #6b3900; background: var(--critical-bg); border-color: #f0c96a; }
.mesaj.hata { color: var(--negative); background: var(--negative-bg); border-color: #f4a6bf; }
.mesaj.basari { color: var(--positive); background: var(--positive-bg); border-color: #b3d68e; }
.mesaj.bilgi { color: #0b3f6e; background: var(--informative-bg); border-color: #b1d6fb; }
.mesaj strong { font-weight: 700; }

/* Olcum karti (Role Center tile) */
.olcumler { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin-bottom: 14px; }
.olcum { background: var(--surface); border: 1px solid var(--list-border); border-radius: var(--radius); box-shadow: var(--shadow-1); padding: 12px 14px; }
.olcum-ad { font-size: 12px; color: var(--label); margin: 0 0 4px; }
.olcum-deger { font-size: 22px; font-weight: 700; letter-spacing: -.01em; margin: 0; font-variant-numeric: tabular-nums; }
.olcum-alt { font-size: 12px; color: var(--label); margin: 4px 0 0; }

/* Komut paleti */
.palet-ortu { position: fixed; inset: 0; background: rgba(19,30,41,.42); display: none; align-items: flex-start; justify-content: center; padding-top: 12vh; z-index: var(--z-modal); }
.palet-ortu.acik { display: flex; }
.palet { width: min(600px, 92vw); background: var(--surface); border-radius: 12px; box-shadow: var(--shadow-2); overflow: hidden; }
.palet input { height: 48px; font-size: 15px; border: none; border-bottom: 1px solid var(--list-border); border-radius: 0; }
.palet input:focus { box-shadow: none; }
.palet-liste { max-height: 48vh; overflow-y: auto; padding: 6px; }
.palet-liste a { display: flex; justify-content: space-between; gap: 12px; padding: 9px 12px; border-radius: 6px; color: var(--text); font-size: 13.5px; }
.palet-liste a .grup { font-size: 11px; color: var(--label); text-transform: uppercase; letter-spacing: .05em; }
.palet-liste a.secili, .palet-liste a:hover { background: var(--list-selected); color: var(--brand-hover); text-decoration: none; }
.palet-ipucu { padding: 8px 14px; border-top: 1px solid var(--list-border); background: var(--neutral-bg); font-size: 11.5px; color: var(--label); display: flex; gap: 14px; }
.palet-ipucu kbd { font: 11px var(--font); border: 1px solid var(--button-border); border-radius: 4px; padding: 0 5px; background: #fff; }

/* Baglam menusu (Logo F9 sag tik) */
.baglam { position: fixed; z-index: var(--z-modal); display: none; }
.baglam.acik { display: block; }

.kunye { margin-top: 24px; font-size: 11.5px; color: var(--label); max-width: 80ch; }

/* Giris sayfasi */
.giris-sayfa { min-height: 100vh; display: grid; place-items: center; background: var(--page-bg); padding: 20px; }
.giris-kutu { width: min(400px, 100%); }
.giris-kutu .shell-logo { width: 40px; height: 40px; font-size: 20px; margin: 0 auto 10px; }

@media (max-width: 960px) {
  .shell { grid-template-columns: auto 1fr auto; }
  .shell-marka { border-right: none; }
  .govde-izgara { grid-template-columns: 1fr; }
  .nav { position: static; height: auto; }
  .sayfa { padding: 12px 12px 56px; }
  .footer-arac { margin: 16px -12px -56px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* onizleme-mobil: dar ekran duzeltmesi */
@media (max-width: 700px) {
  .shell { display: flex; flex-wrap: wrap; height: auto; row-gap: 6px; padding: 8px 12px; }
  .shell-marka { border-right: none; padding: 0; }
  .shell-orta { order: 3; flex: 1 1 100%; padding: 0; min-width: 0; }
  .shell-ara { flex: 1 1 auto; min-width: 0; }
  .shell-firma { flex: 1 1 auto; min-width: 0; }
  .shell-firma select { max-width: 46vw; }
  .shell-sag { margin-left: auto; min-width: 0; flex-wrap: wrap; justify-content: flex-end; }
  .shell-ara kbd { display: none; }
  .kullanici-menu > summary { max-width: 44vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  /* .kabuk bir grid; grid ogesinin varsayilan min-width'i auto oldugu icin
     .shell dar ekranda min-content genisliginin altina inemiyor ve sayfa
     yana kayiyordu. */
  .kabuk, .shell, .shell-marka { min-width: 0; }
  .sekmeler { overflow-x: auto; }
}