:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --text: #162033;
  --muted: #687386;
  --line: #dde4ef;
  --primary: #136f63;
  --accent: #c8922f;
  --danger: #b42318;
  --success: #18794e;
  --shadow: 0 18px 45px rgba(22, 32, 51, .08);
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Tahoma, Arial, sans-serif; background: var(--bg); color: var(--text); letter-spacing: 0; }
a { color: var(--primary); text-decoration: none; }
button, input, select, textarea { font: inherit; border: 1px solid var(--line); border-radius: 8px; }
button { cursor: pointer; background: #fff; color: var(--text); padding: 10px 14px; min-height: 42px; }
button.primary, .primary { background: var(--primary); border-color: var(--primary); color: #fff; }
input, select, textarea { width: 100%; padding: 10px 12px; background: #fff; color: var(--text); }
textarea { min-height: 92px; resize: vertical; }
.guest { min-height: 100vh; display: grid; place-items: center; background: linear-gradient(130deg, rgba(19,111,99,.12), rgba(200,146,47,.12)), var(--bg); }
.login-shell { width: min(460px, calc(100vw - 28px)); }
.login-panel { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow); padding: 30px; }
.login-panel h1 { margin: 0 0 8px; font-size: 34px; }
.stack, label { display: grid; gap: 7px; }
.muted, .eyebrow, label { color: var(--muted); }
.eyebrow { margin: 0 0 6px; font-size: 13px; }
.app-shell { display: grid; grid-template-columns: 280px 1fr; min-height: 100vh; }
.sidebar { background: #121a26; color: #fff; padding: 22px; position: sticky; top: 0; height: 100vh; overflow: auto; }
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.brand span { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 8px; background: var(--primary); font-weight: 700; }
.brand strong { font-size: 20px; }
.sidebar nav { display: grid; gap: 6px; }
.sidebar a { color: #dce5f2; padding: 11px 12px; border-radius: 8px; }
.sidebar a:hover { background: rgba(255,255,255,.08); }
.main { padding: 26px; min-width: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 22px; }
.topbar h1 { margin: 0; font-size: 28px; }
.top-actions, .toolbar, .actions, .tabs { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.top-actions a, .tabs a { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; }
.tabs { margin-bottom: 12px; }
.cards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 18px; }
.metric, .panel { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 10px 28px rgba(22, 32, 51, .05); }
.metric { padding: 18px; }
.metric span { color: var(--muted); display: block; margin-bottom: 9px; }
.metric strong { display: block; font-size: 25px; overflow-wrap: anywhere; }
.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.panel { padding: 18px; margin-bottom: 16px; }
.panel h2 { margin: 0 0 14px; font-size: 18px; }
.form-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; align-items: end; }
.form-grid.compact { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.wide { grid-column: 1 / -1; }
.toolbar { margin-bottom: 14px; }
.toolbar input, .toolbar select { max-width: 260px; }
.table-wrap { width: 100%; overflow: auto; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { border-bottom: 1px solid var(--line); padding: 11px 10px; text-align: right; vertical-align: middle; }
th { color: var(--muted); font-weight: 700; background: #f8fafc; }
.empty { padding: 20px; color: var(--muted); text-align: center; border: 1px dashed var(--line); border-radius: 8px; }
.alert { padding: 12px 14px; border-radius: 8px; margin: 14px 0; }
.alert.error { color: var(--danger); background: #fff1f0; }
.alert.success { color: var(--success); background: #eefaf3; }
.inline-form { display: flex; gap: 6px; align-items: center; flex-wrap: nowrap; }
.inline-form input { min-width: 92px; }
.inline-form button { min-height: 36px; padding: 7px 10px; }
.chart { display: grid; gap: 10px; }
.bar-row { display: grid; grid-template-columns: 110px 1fr 50px; gap: 10px; align-items: center; }
.bar-row span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar-row div { background: #edf1f6; border-radius: 8px; height: 12px; overflow: hidden; }
.bar-row b { display: block; background: var(--accent); height: 100%; border-radius: 8px; }
.bar-row em { color: var(--muted); font-style: normal; }
@media (max-width: 980px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; padding: 16px; }
  .sidebar nav { display: flex; overflow-x: auto; padding-bottom: 4px; }
  .sidebar a { white-space: nowrap; }
  .cards, .grid.two { grid-template-columns: 1fr 1fr; }
  .form-grid, .form-grid.compact { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .main { padding: 16px; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .cards, .grid.two, .form-grid, .form-grid.compact { grid-template-columns: 1fr; }
  .metric strong { font-size: 21px; }
  table { min-width: 680px; }
  .toolbar input, .toolbar select { max-width: none; }
  .bar-row { grid-template-columns: 82px 1fr 42px; }
}