/* sistem.in yönetim panosu — tek dosya, koyu tema, system-ui, responsive */
:root {
  --bg: #0f1216;
  --bg2: #161b22;
  --bg3: #1d242e;
  --line: #2a323d;
  --fg: #e6e9ee;
  --mute: #8b95a3;
  --accent: #4f8cff;
  --ok: #2ea54a;
  --warn: #d9a21b;
  --err: #d9453d;
  --run: #7c5cff;
  --radius: 8px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.45;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: ui-monospace, Consolas, "Cascadia Mono", monospace; font-size: 12.5px; }
code { background: var(--bg3); padding: 1px 5px; border-radius: 4px; }
h1 { font-size: 22px; margin: 0; font-weight: 600; }
h2 { font-size: 15px; margin: 0 0 10px; font-weight: 600; }
h3 { font-size: 13px; margin: 14px 0 6px; font-weight: 600; color: var(--mute); text-transform: uppercase; letter-spacing: .04em; }
p { margin: 6px 0; }
.mute { color: var(--mute); }
.small { font-size: 12px; }
.count { font-size: 13px; color: var(--mute); font-weight: 400; margin-left: 6px; }
.crumb { margin: 0 0 6px; color: var(--mute); }

/* header */
.top {
  display: flex; align-items: center; gap: 18px;
  padding: 10px 20px; background: var(--bg2); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
.brand { font-weight: 700; font-size: 16px; color: var(--fg); letter-spacing: .02em; }
.nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.nav a { color: var(--mute); padding: 6px 10px; border-radius: 6px; }
.nav a:hover { color: var(--fg); background: var(--bg3); text-decoration: none; }
.nav a.active { color: var(--fg); background: var(--bg3); }
.logout { display: flex; align-items: center; gap: 10px; margin: 0; }
.user { color: var(--mute); }

.page { flex: 1; width: 100%; max-width: 1400px; margin: 0 auto; padding: 20px; }
.foot { text-align: center; color: var(--mute); font-size: 12px; padding: 16px; border-top: 1px solid var(--line); }

/* layout */
.head-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 14px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.grid2.wide-left { grid-template-columns: 3fr 2fr; }
.cards4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.card { background: var(--bg2); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 16px; min-width: 0; }
.grid2 > .card { margin-bottom: 0; }
.stat { background: var(--bg2); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
.stat-l { color: var(--mute); font-size: 12px; }
.stat-v { font-size: 22px; font-weight: 600; margin-top: 2px; }
.stat-v.small { font-size: 14px; }
.stat-v small { font-size: 12px; color: var(--mute); font-weight: 400; }

/* tables */
.tbl { width: 100%; border-collapse: collapse; background: var(--bg2); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.tbl th, .tbl td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl th { font-size: 12px; color: var(--mute); font-weight: 600; text-transform: uppercase; letter-spacing: .03em; background: var(--bg3); }
.tbl tbody tr:last-child td { border-bottom: 0; }
.tbl tbody tr:hover { background: var(--bg3); }
.tbl .num { text-align: right; font-variant-numeric: tabular-nums; }
.tbl.compact th, .tbl.compact td { padding: 5px 8px; font-size: 13px; }
.card .tbl { border: 0; border-radius: 0; }
.row-link { cursor: pointer; }
.empty { color: var(--mute); text-align: center; padding: 14px; font-style: italic; }

/* badges */
.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 11.5px; font-weight: 600; letter-spacing: .02em; white-space: nowrap; }
.b-ok { background: rgba(46,165,74,.18); color: #5fd37a; }
.b-warn { background: rgba(217,162,27,.18); color: #f0c04a; }
.b-err { background: rgba(217,69,61,.18); color: #ff7b73; }
.b-run { background: rgba(124,92,255,.2); color: #b3a2ff; }
.b-mute { background: var(--bg3); color: var(--mute); }

/* forms */
input, select, textarea {
  background: var(--bg); color: var(--fg); border: 1px solid var(--line); border-radius: 6px;
  padding: 6px 8px; font: inherit; width: 100%;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
label { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; color: var(--mute); }
label > input, label > select, label > textarea { color: var(--fg); }
textarea { resize: vertical; }
.filters { display: flex; gap: 8px; align-items: center; margin: 0; }
.filters select { width: auto; min-width: 140px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 14px; }
.form-grid .span2 { grid-column: span 2; }
.form-col { display: flex; flex-direction: column; gap: 10px; }
.inline { display: inline-block; margin: 0; }
.inline-row { display: flex; gap: 6px; margin: 0; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.actions select { width: auto; }
.btn {
  display: inline-block; background: var(--bg3); color: var(--fg); border: 1px solid var(--line);
  border-radius: 6px; padding: 6px 12px; font: inherit; cursor: pointer; white-space: nowrap; width: auto;
}
.btn:hover { border-color: var(--mute); text-decoration: none; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-warn { background: rgba(217,69,61,.2); border-color: var(--err); color: #ff9a94; }
.btn-ghost { background: transparent; }
.btn-sm { padding: 3px 9px; font-size: 12px; }
summary.btn { list-style: none; }
summary::-webkit-details-marker { display: none; }

/* alerts */
.alert { padding: 10px 14px; border-radius: var(--radius); margin-bottom: 14px; border: 1px solid; }
.alert-ok { background: rgba(46,165,74,.12); border-color: var(--ok); }
.alert-err { background: rgba(217,69,61,.12); border-color: var(--err); }
.alert p { margin: 4px 0; }

/* key-value */
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 4px 14px; margin: 0 0 12px; }
.kv dt { color: var(--mute); }
.kv dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }

/* facts */
.fact-key { margin-top: 12px; }
.fact { padding: 8px 0; border-bottom: 1px solid var(--line); }
.fact:last-child { border-bottom: 0; }
.fact-val { white-space: pre-wrap; overflow-wrap: anywhere; }
.fact-meta { display: flex; gap: 10px; align-items: center; font-size: 12px; margin-top: 4px; }
.fact-actions { display: flex; gap: 8px; align-items: flex-start; margin-top: 6px; flex-wrap: wrap; }
.fix-form { display: flex; flex-direction: column; gap: 6px; margin-top: 6px; min-width: 280px; }

/* tabs (css-only) */
.tabs { display: flex; flex-wrap: wrap; }
.tabs > input[type=radio] { display: none; }
.tabs > label { cursor: pointer; padding: 6px 12px; border: 1px solid var(--line); border-bottom: 0; border-radius: 6px 6px 0 0; margin-right: 4px; color: var(--mute); }
.tabs > input:checked + label { background: var(--bg3); color: var(--fg); }
.tabs > .tab-panel { display: none; width: 100%; order: 99; border: 1px solid var(--line); border-radius: 0 6px 6px 6px; padding: 12px 14px; background: var(--bg); }
.tabs > #doc0:checked ~ #panel0, .tabs > #doc1:checked ~ #panel1, .tabs > #doc2:checked ~ #panel2, .tabs > #doc3:checked ~ #panel3 { display: block; }

/* markdown */
.md h1 { font-size: 18px; margin: 10px 0; }
.md h2 { font-size: 15px; margin: 14px 0 6px; }
.md h3 { text-transform: none; letter-spacing: 0; color: var(--fg); }
.md pre { background: var(--bg3); padding: 10px; border-radius: 6px; overflow-x: auto; }
.md table { border-collapse: collapse; }
.md td, .md th { border: 1px solid var(--line); padding: 4px 8px; }
.md ul, .md ol { padding-left: 22px; }

pre.prewrap, .prewrap { white-space: pre-wrap; overflow-wrap: anywhere; margin: 0 0 12px; font-family: inherit; }
pre.err { color: #ff9a94; }
pre.code { background: var(--bg3); padding: 10px; border-radius: 6px; overflow-x: auto; margin: 0 0 12px; white-space: pre-wrap; }

/* decisions */
.subtabs { display: flex; gap: 4px; }
.subtabs a { color: var(--mute); padding: 6px 10px; border-radius: 6px; }
.subtabs a.active { background: var(--bg3); color: var(--fg); }
.decision .head-row { margin-bottom: 8px; }
.decide { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; margin-top: 6px; }
.decide label { flex: 1; min-width: 240px; }
.decide .actions { margin-bottom: 0; }
.options, .assumptions { margin: 0; padding-left: 20px; }

.pager { display: flex; gap: 10px; align-items: center; justify-content: center; padding: 10px 0 0; }
.settings input { min-width: 200px; }

/* login */
.login-box { max-width: 420px; margin: 60px auto; background: var(--bg2); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.login-box h1 { margin-bottom: 14px; }
.login-box form { display: flex; flex-direction: column; gap: 12px; }

/* responsive */
@media (max-width: 900px) {
  .grid2, .grid2.wide-left { grid-template-columns: 1fr; }
  .cards4 { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .span2 { grid-column: span 1; }
  .page { padding: 12px; }
  .tbl { display: block; overflow-x: auto; }
  .kv { grid-template-columns: 1fr; gap: 2px; }
  .kv dt { margin-top: 6px; }
}