:root {
  --bg: #0f1420;
  --bg-soft: #161d2d;
  --panel: #1b2334;
  --panel-2: #212b40;
  --border: #2c3850;
  --text: #e6ebf5;
  --text-dim: #9aa7bd;
  --accent: #4f8cff;
  --accent-2: #36c5a3;
  --danger: #ff6b6b;
  --warn: #ffb84d;
  --ok: #36c5a3;
  --radius: 10px;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

/* ---------- Header ---------- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 20px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand { display: flex; align-items: center; gap: 12px; }

.logo {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-weight: 800;
  color: #07101f;
  letter-spacing: 0.5px;
}

.app-header h1 { font-size: 18px; margin: 0; }
.subtitle { margin: 0; color: var(--text-dim); font-size: 12px; }

.header-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.save-status {
  font-size: 12px;
  color: var(--text-dim);
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
}
.save-status.dirty { color: var(--warn); border-color: var(--warn); }

.btn {
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s ease;
}
.btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #07101f; font-weight: 600; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; }
.btn-sm { padding: 4px 9px; font-size: 12px; }
.btn-danger { color: var(--danger); border-color: transparent; }
.btn-danger:hover { border-color: var(--danger); }

/* ---------- Layout ---------- */
.layout { display: grid; grid-template-columns: 260px 1fr; min-height: calc(100vh - 67px); }

.sidebar {
  border-right: 1px solid var(--border);
  background: var(--bg-soft);
  position: sticky;
  top: 67px;
  height: calc(100vh - 67px);
  overflow-y: auto;
  padding: 14px 10px;
}

.nav { display: flex; flex-direction: column; gap: 2px; }
.nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 13px;
}
.nav a:hover { background: var(--panel); color: var(--text); }
.nav a.active { background: var(--panel-2); color: var(--text); }
.nav .num {
  font-size: 11px;
  min-width: 22px;
  text-align: center;
  color: var(--text-dim);
}
.nav .dot {
  margin-left: auto;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
}
.nav a.done .dot { background: var(--ok); }
.nav a.partial .dot { background: var(--warn); }

.content { padding: 22px 28px 80px; max-width: 1000px; }

/* ---------- Panels & sections ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 22px;
  scroll-margin-top: 85px;
}
.panel-title { margin: 0 0 16px; font-size: 16px; }

.section-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 6px;
}
.section-head .sec-num { color: var(--accent); font-weight: 700; }
.section-head h2 { font-size: 16px; margin: 0; }
.section-help { color: var(--text-dim); font-size: 12.5px; margin: 0 0 16px; }

.field { margin-bottom: 16px; }
.field > label { display: block; font-weight: 600; margin-bottom: 5px; font-size: 13px; }
.field .help { color: var(--text-dim); font-size: 12px; margin: 0 0 6px; }

input[type="text"], input[type="date"], textarea, select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 11px;
  font-family: inherit;
  font-size: 13px;
  resize: vertical;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); }
textarea { min-height: 84px; }

.cover-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.cover-grid .field { margin: 0; }

/* ---------- Tables ---------- */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 8px; }
table.grid { width: 100%; border-collapse: collapse; min-width: 480px; }
table.grid th, table.grid td { border-bottom: 1px solid var(--border); padding: 6px 8px; text-align: left; }
table.grid th { background: var(--panel-2); font-size: 12px; color: var(--text-dim); font-weight: 600; }
table.grid td input, table.grid td textarea, table.grid td select { border: none; background: transparent; padding: 6px; }
table.grid td.row-actions { width: 36px; text-align: center; }
table.grid tr:last-child td { border-bottom: none; }
.table-toolbar { margin-top: 8px; }

/* ---------- Risk register ---------- */
.risk-cat { margin-bottom: 14px; }
.risk-cat > h4 { margin: 0 0 8px; font-size: 13px; color: var(--accent-2); }
.risk-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  margin-bottom: 8px;
  background: var(--bg);
}
.risk-grid { display: grid; grid-template-columns: 1fr 120px 120px 130px 30px; gap: 8px; align-items: start; }
.risk-grid .full { grid-column: 1 / -1; }
.pill { font-size: 11px; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--border); }

/* ---------- Use cases ---------- */
.uc-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
}
.uc-card > summary {
  list-style: none;
  cursor: pointer;
  padding: 12px 14px;
  background: var(--panel-2);
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}
.uc-card > summary::-webkit-details-marker { display: none; }
.uc-card > summary .chev { transition: transform 0.15s; color: var(--text-dim); }
.uc-card[open] > summary .chev { transform: rotate(90deg); }
.uc-body { padding: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.uc-body .field.span { grid-column: 1 / -1; }

/* ---------- Dashboard ---------- */
.completeness { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; margin-bottom: 18px; }
.meter { position: relative; width: 120px; height: 120px; }
.ring { transform: rotate(-90deg); width: 120px; height: 120px; }
.ring-bg { fill: none; stroke: var(--border); stroke-width: 10; }
.ring-fg {
  fill: none;
  stroke: url(#g);
  stroke: var(--accent);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 327;
  stroke-dashoffset: 327;
  transition: stroke-dashoffset 0.4s ease;
}
.meter-label { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; }
.meter-label span { font-size: 26px; font-weight: 800; }
.meter-label small { display: block; color: var(--text-dim); font-size: 11px; }

.dash-stats { display: grid; grid-template-columns: repeat(2, auto); gap: 14px 26px; }
.stat span { font-size: 22px; font-weight: 700; }
.stat small { display: block; color: var(--text-dim); font-size: 11px; }

.checklist { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 6px; }
.check-item {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 10px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 12.5px; cursor: pointer; color: var(--text-dim);
  background: var(--bg);
}
.check-item .mark { width: 16px; height: 16px; border-radius: 5px; border: 1px solid var(--border); flex: none; }
.check-item.done { color: var(--text); }
.check-item.done .mark { background: var(--ok); border-color: var(--ok); }
.check-item.partial .mark { background: var(--warn); border-color: var(--warn); }

/* ---------- Print ---------- */
@media print {
  .app-header, .sidebar, .header-actions, .table-toolbar, .row-actions,
  .btn, #dashboard { display: none !important; }
  .layout { grid-template-columns: 1fr; }
  body { background: #fff; color: #000; }
  .panel { border: none; box-shadow: none; background: #fff; page-break-inside: avoid; }
  .content { max-width: none; padding: 0; }
  input, textarea, select { border: 1px solid #ccc; color: #000; background: #fff; }
}

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .cover-grid { grid-template-columns: 1fr 1fr; }
  .uc-body { grid-template-columns: 1fr; }
  .risk-grid { grid-template-columns: 1fr; }
}