:root {
  --bg: #f4f6f9; --surface: #ffffff; --surface2: #f0f2f6; --border: #dde2ea;
  --text: #18202c; --muted: #5d6878; --primary: #2563eb; --primary-ink: #fff;
  --danger: #c62828; --danger-bg: #fdecec; --ok: #1e7d3a; --ok-bg: #e7f5ec;
  --warn: #9a5b00; --warn-bg: #fff4e0; --shadow: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.08);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f141b; --surface: #161d27; --surface2: #1d2633; --border: #2a3545;
    --text: #e6ebf2; --muted: #95a1b3; --primary: #4f8cff; --primary-ink: #fff;
    --danger: #ff6b6b; --danger-bg: #3a1c1f; --ok: #5fd08a; --ok-bg: #17301f;
    --warn: #f0b04a; --warn-bg: #352812; --shadow: none;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.45 system-ui, "Segoe UI", Roboto, sans-serif; }
[hidden] { display: none !important; }
h1 { font-size: 20px; margin: 4px 0 8px; }
h2 { font-size: 15px; margin: 0 0 10px; }
.muted { color: var(--muted); } .small { font-size: 12.5px; }
.err { color: var(--danger); min-height: 1.2em; margin: 6px 0; }

.brand { display: flex; gap: 10px; align-items: center; }
.brand small { display: block; color: var(--muted); font-size: 12px; }
.logo { height: 30px; width: auto; flex: none; display: block; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 14px; box-shadow: var(--shadow); overflow-x: auto; }
.btn { border: 1px solid var(--border); background: var(--surface2); color: var(--text); padding: 7px 12px; border-radius: 7px; cursor: pointer; font: inherit; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.btn:hover { filter: brightness(.97); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.btn.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.ghost { background: transparent; }
.btn.sm { padding: 3px 8px; font-size: 12.5px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
input, select { font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: 7px; padding: 7px 9px; min-width: 0; }
input:focus, select:focus, .btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 1px; }
label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
label.chk { display: inline-flex; align-items: center; gap: 6px; color: var(--text); }

.auth { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.auth-card { width: 100%; max-width: 380px; display: grid; gap: 10px; padding: 24px; }

.top { position: sticky; top: 0; z-index: 5; display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; padding: 10px 16px; background: var(--surface); border-bottom: 1px solid var(--border); }
#tabs { display: flex; gap: 2px; flex-wrap: wrap; flex: 1; }
#tabs button { border: 0; background: none; color: var(--muted); font: inherit; padding: 7px 11px; border-radius: 7px; cursor: pointer; }
#tabs button.active { background: var(--surface2); color: var(--text); font-weight: 600; }
.top-right { display: flex; gap: 6px; align-items: center; }
.badge { background: var(--danger); color: #fff; border-radius: 9px; padding: 0 6px; font-size: 11.5px; font-weight: 600; }
.pill { font-size: 12px; padding: 3px 9px; border-radius: 99px; background: var(--surface2); color: var(--muted); }
.pill.ok { background: var(--ok-bg); color: var(--ok); } .pill.bad { background: var(--danger-bg); color: var(--danger); }
.pill.warn { background: var(--warn-bg); color: var(--warn); }

main { padding: 16px; max-width: 1400px; margin: 0 auto; display: grid; gap: 14px; }
main > section { display: grid; gap: 14px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; box-shadow: var(--shadow); }
.stat b { display: block; font-size: 24px; font-variant-numeric: tabular-nums; }
.stat span { color: var(--muted); font-size: 12.5px; }
.stat.alert b { color: var(--danger); }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 14px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.toolbar input { flex: 1 1 180px; }

.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th { text-align: left; color: var(--muted); font-weight: 600; font-size: 12px; border-bottom: 1px solid var(--border); padding: 6px 8px; white-space: nowrap; }
.tbl td { border-bottom: 1px solid var(--border); padding: 7px 8px; vertical-align: middle; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl td.num { text-align: right; font-variant-numeric: tabular-nums; }
.tbl .mono { font-family: ui-monospace, Consolas, monospace; font-size: 12px; }
.tbl .empty { color: var(--muted); text-align: center; padding: 20px; }
.tag { font-size: 11.5px; padding: 1px 7px; border-radius: 99px; background: var(--surface2); color: var(--muted); white-space: nowrap; }
.tag.block, .tag.refused, .tag.cut, .tag.failed { background: var(--danger-bg); color: var(--danger); }
.tag.allow, .tag.done, .tag.online { background: var(--ok-bg); color: var(--ok); }
.tag.pending, .tag.open { background: var(--warn-bg); color: var(--warn); }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }
.more { margin-top: 10px; }
.sys-actions { margin-top: 10px; }
.adm-head { display: flex; gap: 16px; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; }
.adm-head > div { flex: 1 1 320px; }
.code-big { font-size: 22px; font-weight: 700; letter-spacing: 3px; font-variant-numeric: tabular-nums; color: var(--primary); }
.grow { flex: 1; margin: 0; }
.tag.approved { background: var(--ok-bg); color: var(--ok); }
.tag.rejected { background: var(--danger-bg); color: var(--danger); }
.alert-banner { position: sticky; top: 0; z-index: 6; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding: 10px 16px; background: var(--danger); color: #fff; }
.alert-banner .spacer { flex: 1; }
.alert-banner .btn { background: rgba(255,255,255,.15); border-color: rgba(255,255,255,.4); color: #fff; }
.tag.personel { background: var(--ok-bg); color: var(--ok); }
.tag.ogrenci { background: var(--surface2); color: var(--text); }

dialog { border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--text); padding: 20px; width: min(460px, calc(100vw - 32px)); }
dialog::backdrop { background: rgba(0,0,0,.45); }
#dlgBody { display: grid; gap: 10px; }
.dlg-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
#toast { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 9px 14px; border-radius: 8px; opacity: 0; transition: opacity .2s; pointer-events: none; max-width: calc(100vw - 32px); }
#toast.show { opacity: 1; }

@media (max-width: 640px) {
  .top { padding: 10px; } main { padding: 12px; }
  .grid2 { grid-template-columns: 1fr; }
}

/* Kişi bağla */
#tabs button.tab-cta { background: var(--primary); color: var(--primary-ink); font-weight: 600; }
#tabs button.tab-cta.active { background: var(--primary); color: var(--primary-ink); box-shadow: inset 0 -3px 0 rgba(0,0,0,.25); }
.bg-card { padding: 20px; }
.bg-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; align-items: end; margin-top: 10px; }
.bg-form input[name=name] { font-size: 17px; }
.bg-warn { margin: 12px 0 0; padding: 9px 12px; border-radius: 8px; background: var(--warn-bg); color: var(--warn); }
.bg-grid { display: grid; grid-template-columns: minmax(260px, 400px) 1fr; gap: 24px; align-items: start; }
.bg-qr { text-align: center; }
.bg-qr img { width: 100%; max-width: 400px; height: auto; aspect-ratio: 1; background: #fff; border-radius: 12px; border: 1px solid var(--border); display: block; margin: 0 auto; }
.bg-net { font-size: 16px; margin: 10px 0 2px; }
.bg-person { font-size: 26px; font-weight: 700; margin: 0 0 4px; }
.bg-live { list-style: none; margin: 0 0 14px; padding: 0; display: grid; gap: 8px; }
.bg-live li { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface2); }
.bg-live li .grow { flex: 1 1 160px; }
.bg-live li.done { background: var(--ok-bg); border-color: transparent; color: var(--ok); }
.bg-live li.empty { color: var(--muted); justify-content: center; }
.tag.expired { background: var(--warn-bg); color: var(--warn); }
.person { font-weight: 600; }
@media (max-width: 760px) {
  .bg-grid { grid-template-columns: 1fr; }
  .bg-person { font-size: 22px; }
}
@media (max-width: 640px) {
  #tabs { order: 3; flex: 1 1 100%; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
  #tabs button { white-space: nowrap; flex: none; }
  .top-right { margin-left: auto; }
}
.brand-on { color: var(--primary); }
.auth-card .logo { height: 40px; }

/* Kişi bağla: kodla onay */
.bg-code { display: flex; flex-wrap: wrap; align-items: end; gap: 10px; margin: 0 0 12px; }
.bg-code label { flex: 1 1 160px; }
.bg-code input { font-size: 24px; letter-spacing: 6px; font-variant-numeric: tabular-nums; text-align: center; }