:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --text: #1d2330;
  --muted: #6b7280;
  --border: #e3e6eb;
  --primary: #1f4fd1;
  --primary-ink: #ffffff;
  --pos: #0f7b3e;
  --neg: #b42318;
  --warn-bg: #fff4e5;
  --warn: #8a4b00;
  --ok-bg: #e7f6ec;
  --error-bg: #fdecea;
  --info-bg: #e8effc;
  --sidebar: #172033;
  --sidebar-ink: #c9d1e3;
  --radius: 10px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.45rem; margin: 0 0 .25rem; }
h2 { font-size: 1.1rem; margin: 0 0 .75rem; }
p { margin: .5rem 0; }
code.secret { font-size: 1rem; letter-spacing: .05em; background: var(--bg); padding: .2rem .4rem; border-radius: 6px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* Üst bar */
.topbar {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  padding: .6rem 1rem; background: var(--surface); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.brand { font-weight: 700; color: var(--text); }
.company-name { font-weight: 600; color: var(--muted); }
.company-switch select { min-width: 220px; }
.user-menu { margin-left: auto; display: flex; gap: .75rem; align-items: center; }
.user-menu form { margin: 0; }

/* Yerleşim */
.shell { display: flex; min-height: calc(100vh - 56px); }
.sidebar {
  width: 220px; flex-shrink: 0; background: var(--sidebar); padding: 1rem 0;
}
.sidebar a { display: block; padding: .5rem 1.25rem; color: var(--sidebar-ink); }
.sidebar a:hover { background: rgba(255,255,255,.06); text-decoration: none; }
.sidebar a.active { background: rgba(255,255,255,.12); color: #fff; font-weight: 600; }
.nav-group { padding: 1rem 1.25rem .25rem; font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; color: #7d8aa8; }
.content { flex: 1; min-width: 0; padding: 1.5rem; max-width: 1280px; }
.content.narrow { max-width: 440px; margin: 8vh auto; padding: 1rem; }

@media (max-width: 860px) {
  .shell { flex-direction: column; }
  .sidebar { width: 100%; display: flex; overflow-x: auto; padding: 0; }
  .sidebar a { white-space: nowrap; padding: .7rem 1rem; }
  .nav-group { display: none; }
  .content { padding: 1rem; }
  .company-switch select { min-width: 0; max-width: 60vw; }
}

/* Kartlar */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.25rem; margin-bottom: 1rem;
}
.card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: .5rem; }
.card-head h2 { margin: 0; }
.auth-card { padding: 2rem; }
.form-card { max-width: 760px; }
.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.page-head p { margin: 0; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; }

/* Özet kutuları */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .75rem; margin-bottom: 1rem; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: .9rem 1rem; }
.stat span { display: block; font-size: .8rem; color: var(--muted); }
.stat strong { font-size: 1.3rem; font-variant-numeric: tabular-nums; }
.stat strong.small { font-size: .95rem; font-weight: 500; }
.stat.highlight { border-color: var(--primary); box-shadow: inset 4px 0 0 var(--primary); }

/* Formlar */
label { display: block; margin-bottom: .85rem; font-weight: 500; font-size: .9rem; }
input, select, textarea {
  display: block; width: 100%; margin-top: .3rem; padding: .55rem .7rem;
  font: inherit; color: inherit; background: #fff;
  border: 1px solid #cdd2da; border-radius: 8px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: var(--primary); }
input:disabled { background: var(--bg); color: var(--muted); }
label.check { display: flex; gap: .5rem; align-items: center; font-weight: 400; }
label.check input { width: auto; margin: 0; }
small { display: block; margin-top: .25rem; font-weight: 400; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
.grid-2.align-start { align-items: start; gap: 1rem; }
@media (max-width: 640px) { .grid-2 { grid-template-columns: 1fr; } }
fieldset.segmented { border: 0; padding: 0; margin: 0 0 .85rem; }
fieldset.segmented legend { font-weight: 500; font-size: .9rem; margin-bottom: .3rem; padding: 0; }
fieldset.segmented label { display: inline-flex; align-items: center; gap: .4rem; margin: .3rem 1rem .3rem 0; font-weight: 400; }
fieldset.segmented.vertical label { display: flex; align-items: flex-start; }
fieldset.segmented input { width: auto; margin: .2rem 0 0; }
.field-error { color: var(--neg); font-size: .85rem; margin: -.5rem 0 .75rem; }
.form-actions { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .5rem; }
.danger-zone { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.inline, .inline-form { display: inline-flex; gap: .5rem; align-items: center; margin: 0; }
.inline-form input, .inline-form select { margin: 0; width: auto; flex: 1; }

.filters { display: flex; gap: .5rem; align-items: flex-end; flex-wrap: wrap; margin-bottom: 1rem; }
.filters label { margin: 0; font-size: .8rem; color: var(--muted); }
.filters input, .filters select { width: auto; min-width: 140px; }
.filters > input { margin-top: 0; }

/* Butonlar */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .3rem;
  padding: .5rem .9rem; font: inherit; font-size: .9rem; font-weight: 500; line-height: 1.2;
  color: var(--text); background: var(--surface); border: 1px solid #cdd2da; border-radius: 8px;
  cursor: pointer; white-space: nowrap;
}
.btn:hover { text-decoration: none; background: #f7f8fa; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.btn.primary:hover { background: #1a43b3; }
.btn.danger { color: var(--neg); border-color: #f0b8b3; }
.btn.danger:hover { background: var(--error-bg); }
.btn.small { padding: .3rem .6rem; font-size: .8rem; }
.btn.block { width: 100%; }
.btn.link, button.link { background: none; border: 0; color: var(--primary); padding: .5rem .25rem; cursor: pointer; font: inherit; }

/* Tablolar */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.table th, .table td { padding: .55rem .6rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table thead th { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
.table tfoot th { border-top: 2px solid var(--text); border-bottom: 0; }
.table.compact th, .table.compact td { padding: .4rem .5rem; }
.table tr.sub td { background: #fafbfc; color: var(--muted); font-style: italic; }
.table tr.inactive td { color: var(--muted); }
.num { text-align: right !important; white-space: nowrap; }
.center { text-align: center !important; }
.nowrap { white-space: nowrap; }
.strong { font-weight: 600; }
.row-actions { text-align: right; white-space: nowrap; }
.pos { color: var(--pos); }
.neg { color: var(--neg); }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.pager { display: flex; gap: 1rem; align-items: center; justify-content: center; }

.badge { display: inline-block; padding: .1rem .45rem; font-size: .72rem; font-weight: 600; border-radius: 999px; background: var(--bg); color: var(--muted); border: 1px solid var(--border); }
.badge.warn { background: var(--warn-bg); color: var(--warn); border-color: #f5d4a6; }
.badge.ok { background: var(--ok-bg); color: var(--pos); border-color: #b5e2c4; }

.alert { padding: .75rem 1rem; border-radius: 8px; margin-bottom: 1rem; border: 1px solid transparent; }
.alert-success { background: var(--ok-bg); color: var(--pos); border-color: #b5e2c4; }
.alert-error { background: var(--error-bg); color: var(--neg); border-color: #f0b8b3; }
.alert-info { background: var(--info-bg); color: #1a3c8f; border-color: #c4d4f5; }

.qr { width: 200px; height: 200px; margin: .5rem 0; }
.qr svg { width: 100%; height: 100%; }
.steps { padding-left: 1.2rem; }
.steps li { margin-bottom: .3rem; }

.print-only { display: none; }

@media print {
  body { background: #fff; font-size: 12px; }
  .topbar, .sidebar, .no-print, .actions, .alert, .filters, .row-actions { display: none !important; }
  .print-only { display: block; }
  .content { padding: 0; max-width: none; }
  .card, .stat { border: 1px solid #999; box-shadow: none; break-inside: avoid; }
  .table th, .table td { border-bottom: 1px solid #bbb; padding: .3rem; }
  a { color: inherit; }
}