:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #667085;
  --primary: #1d4ed8;
  --primary-dark: #173ea9;
  --danger: #b42318;
  --warning: #b54708;
  --ok: #067647;
  --line: #e5e7eb;
  --sidebar: #111827;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--primary); text-decoration: none; }
.auth-body { min-height: 100vh; display: grid; place-items: center; background: linear-gradient(135deg, #0f172a, #1d4ed8); }
.auth-wrap { width: min(460px, 94vw); }
.auth-card { background: #fff; padding: 28px; border-radius: 18px; box-shadow: 0 18px 60px rgba(0,0,0,.25); }
.auth-card h1 { margin-top: 0; }
.layout { display: grid; grid-template-columns: 250px 1fr; min-height: 100vh; }
.sidebar { background: var(--sidebar); color: #fff; padding: 22px; position: sticky; top: 0; height: 100vh; }
.brand { font-size: 24px; font-weight: 800; line-height: 1.1; margin-bottom: 28px; }
.brand span { font-size: 15px; font-weight: 500; color: #cbd5e1; }
.sidebar nav { display: grid; gap: 8px; }
.sidebar a { color: #e5e7eb; padding: 11px 12px; border-radius: 10px; }
.sidebar a:hover { background: rgba(255,255,255,.08); }
.main { padding: 22px; }
.topbar { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 14px 18px; display: flex; justify-content: space-between; margin-bottom: 18px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; margin-bottom: 18px; box-shadow: 0 6px 24px rgba(15,23,42,.04); }
.card h2 { margin-top: 0; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-bottom: 18px; }
.metric span { color: var(--muted); display: block; }
.metric b { font-size: 34px; display: block; margin-top: 8px; }
.calc-card { color: var(--text); min-height: 110px; display: flex; flex-direction: column; gap: 8px; }
.calc-card b { font-size: 18px; }
.calc-card span { color: var(--muted); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(220px, 1fr)); gap: 14px; align-items: end; }
.form-grid.single { grid-template-columns: 1fr; }
label span { display: block; font-weight: 700; margin-bottom: 6px; }
input, select, textarea { width: 100%; padding: 11px 12px; border: 1px solid #d0d5dd; border-radius: 10px; font: inherit; background: #fff; }
textarea { min-height: 90px; resize: vertical; }
.full { grid-column: 1 / -1; }
.btn { display: inline-block; border: 1px solid var(--line); background: #fff; color: var(--text); padding: 10px 13px; border-radius: 10px; cursor: pointer; font-weight: 700; margin: 2px; }
.btn.primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn.primary:hover { background: var(--primary-dark); }
.btn.small { padding: 6px 9px; font-size: 13px; }
.btn.danger { background: #fee4e2; color: var(--danger); border-color: #fda29b; }
.btn.warning { background: #fef0c7; color: var(--warning); border-color: #fedf89; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #f8fafc; }
.inline-form { display: inline; }
.alert { padding: 12px 14px; border-radius: 12px; margin-bottom: 14px; border: 1px solid transparent; }
.alert-success { background: #dcfae6; color: var(--ok); border-color: #abefc6; }
.alert-danger { background: #fee4e2; color: var(--danger); border-color: #fda29b; }
.alert-warning { background: #fef0c7; color: var(--warning); border-color: #fedf89; }
.badge { display: inline-block; padding: 4px 8px; border-radius: 999px; background: #eef2ff; color: #3730a3; font-size: 12px; font-weight: 700; }
.empty { color: var(--muted); background: #f8fafc; padding: 14px; border-radius: 10px; border: 1px dashed #cbd5e1; }
.muted { color: var(--muted); }
.memorial { white-space: pre-wrap; background: #0f172a; color: #e5e7eb; padding: 16px; border-radius: 12px; overflow: auto; }
.mix-row { grid-column: 1 / -1; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 10px; padding: 12px; border: 1px solid var(--line); border-radius: 12px; margin-bottom: 10px; background: #f8fafc; }
code, pre { font-family: Consolas, Monaco, monospace; }
@media (max-width: 850px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; }
  .form-grid, .mix-row { grid-template-columns: 1fr; }
  .topbar { display: block; }
  table { display: block; overflow-x: auto; }
}