:root {
  --ink: #1d232b;
  --ink-2: #4a5562;
  --ink-3: #7a8592;
  --line: #dfe3e8;
  --line-2: #eef1f4;
  --bg: #f6f7f9;
  --card: #ffffff;
  --accent: #0f5c63;
  --accent-2: #e3f0f1;
  --ok: #1d7a46;
  --ok-bg: #e5f4ea;
  --warn: #946200;
  --warn-bg: #fdf3d8;
  --bad: #b3261e;
  --bad-bg: #fbe7e5;
  --info: #285ea8;
  --info-bg: #e6eefa;
  --radius: 8px;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font: 14px/1.5 -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; color: var(--ink); background: var(--bg); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 22px; margin: 0 0 4px; letter-spacing: -0.01em; }
h2 { font-size: 16px; margin: 0 0 12px; }
h3 { font-size: 14px; margin: 16px 0 8px; color: var(--ink-2); text-transform: uppercase; letter-spacing: .04em; }
.sub { color: var(--ink-3); margin: 0 0 20px; }

.topbar { display: flex; align-items: center; gap: 24px; padding: 0 24px; height: 56px; background: var(--ink); color: #fff; position: sticky; top: 0; z-index: 10; }
.brand { color: #fff; font-weight: 700; font-size: 17px; letter-spacing: .02em; }
.brand span { color: #6fc3c9; }
.mainnav { display: flex; gap: 4px; flex: 1; overflow-x: auto; }
.mainnav a { color: #c9d1da; padding: 6px 10px; border-radius: 6px; white-space: nowrap; }
.mainnav a.on, .mainnav a:hover { color: #fff; background: rgba(255,255,255,.1); text-decoration: none; }
.count { background: #e0a400; color: var(--ink); border-radius: 10px; padding: 0 7px; font-size: 12px; }
.tools { display: flex; align-items: center; gap: 12px; }
.tools .user { color: #fff; }
.tools select { background: #2c343e; color: #fff; border: 1px solid #45505c; border-radius: 6px; padding: 4px 8px; }
.tenant-name { color: #c9d1da; }
button.link { background: none; border: 0; color: #c9d1da; cursor: pointer; padding: 0; font: inherit; }

.page { max-width: 1400px; margin: 0 auto; padding: 24px; }
.wide { max-width: none; padding: 16px 24px; }
.messages { margin-bottom: 16px; display: grid; gap: 8px; }
.msg { padding: 10px 14px; border-radius: var(--radius); background: var(--info-bg); color: var(--info); }
.msg.success { background: var(--ok-bg); color: var(--ok); }
.msg.warning { background: var(--warn-bg); color: var(--warn); }
.msg.error { background: var(--bad-bg); color: var(--bad); }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 16px; }
.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); }
.grid.tiles { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; display: block; color: var(--ink); }
.tile:hover { border-color: var(--accent); text-decoration: none; }
.tile .n { font-size: 26px; font-weight: 700; }
.tile .l { color: var(--ink-3); font-size: 12px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line-2); vertical-align: top; }
th { font-size: 12px; color: var(--ink-3); font-weight: 600; text-transform: uppercase; letter-spacing: .03em; border-bottom-color: var(--line); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tr:hover td { background: #fafbfc; }
.table-wrap { overflow-x: auto; }

.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.badge.info { background: var(--info-bg); color: var(--info); }
.badge.muted { background: var(--line-2); color: var(--ink-2); }

.btn { display: inline-block; border: 1px solid var(--line); background: #fff; color: var(--ink); padding: 7px 14px; border-radius: 6px; cursor: pointer; font: inherit; font-weight: 600; }
.btn:hover { border-color: var(--ink-3); text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #0b4a50; }
.btn.danger { color: var(--bad); border-color: #f0c4c0; }
.btn.small { padding: 3px 10px; font-size: 13px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

form p { margin: 0 0 12px; }
label { display: block; font-size: 12px; color: var(--ink-2); font-weight: 600; margin-bottom: 3px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], input:not([type]), select, textarea {
  width: 100%; padding: 7px 9px; border: 1px solid var(--line); border-radius: 6px; font: inherit; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid #9fd0d4; border-color: var(--accent); }
.filters { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; align-items: end; }
.helptext { color: var(--ink-3); font-size: 12px; }
.errorlist { color: var(--bad); margin: 4px 0; padding-left: 16px; }

/* Fatura detay: belge solda, form sağda */
.review { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(380px, 1fr); gap: 16px; align-items: start; }
.viewer { position: sticky; top: 72px; max-height: calc(100vh - 90px); overflow: auto; background: #525a63; border-radius: var(--radius); padding: 12px; }
.viewer img { width: 100%; display: block; margin-bottom: 10px; border-radius: 2px; background: #fff; }
.viewer pre { background: #fff; padding: 12px; font-size: 12px; white-space: pre-wrap; word-break: break-word; margin: 0; }
.einvoice { background: #fff; padding: 16px; border-radius: 4px; }
.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 14px; }
.field { border-left: 3px solid transparent; padding-left: 8px; }
.field.green { border-left-color: #3aa56b; }
.field.yellow { border-left-color: #e0a400; background: #fffaeb; }
.field.red { border-left-color: var(--bad); background: #fff3f2; }
.field .hl { font-size: 11px; color: var(--accent); cursor: pointer; float: right; font-weight: 400; }
.field.full { grid-column: 1 / -1; }
.legend { display: flex; gap: 14px; font-size: 12px; color: var(--ink-3); margin-bottom: 10px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: -1px; }
.warnings { margin: 0 0 12px; padding: 10px 12px 10px 28px; background: var(--warn-bg); color: #5c3d00; border-radius: var(--radius); }
.warnings.red { background: var(--bad-bg); color: #7a1a14; }
.steps { list-style: none; padding: 0; margin: 0; }
.steps li { display: flex; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line-2); }
.steps .who { flex: 1; }
.decision textarea { margin: 8px 0; }
.lines input { padding: 4px 6px; }
.history { font-size: 13px; }
.history td { padding: 5px 8px; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin: 0 0 12px; }
.tabs a { padding: 6px 12px; color: var(--ink-2); border-bottom: 2px solid transparent; }
.tabs a.on { color: var(--ink); border-bottom-color: var(--accent); }
details summary { cursor: pointer; color: var(--ink-2); font-weight: 600; }

/* Raporlar */
.bar { background: var(--line-2); border-radius: 3px; height: 10px; min-width: 60px; }
.bar > span { display: block; height: 10px; border-radius: 3px; background: var(--accent); }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
.kpi .v { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.kpi .k { font-size: 12px; color: var(--ink-3); }

.login { max-width: 380px; margin: 10vh auto; }
.lang-switch { display: flex; gap: 6px; justify-content: center; margin-top: 12px; }
.lang-switch button { background: none; border: 0; color: var(--accent); cursor: pointer; font: inherit; }
.pagination { display: flex; gap: 10px; align-items: center; margin-top: 12px; }
.right { text-align: right; }
.muted { color: var(--ink-3); }
.due { color: var(--bad); font-weight: 600; }
.mono { font-family: var(--mono); font-size: 12px; }
.nowrap { white-space: nowrap; }

@media (max-width: 1000px) {
  .review { grid-template-columns: 1fr; }
  .viewer { position: static; max-height: none; }
  .fields { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; height: auto; padding: 10px 16px; gap: 10px; }
  .page { padding: 16px; }
}
@media print {
  .topbar, .actions, .filters, form { display: none !important; }
  body { background: #fff; }
  .card { border: 0; }
}