:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --border: #e2e6ea;
  --text: #1f2933;
  --text-muted: #647184;
  --primary: #2f5d8a;
  --primary-dark: #234968;
  --primary-light: #e8f0f8;
  --success: #1e8a5f;
  --success-bg: #e5f5ee;
  --warning: #b3760a;
  --warning-bg: #fdf1de;
  --danger: #c23b3b;
  --danger-bg: #fbe9e9;
  --neutral-bg: #eef1f4;
  --radius: 8px;
  --shadow: 0 1px 2px rgba(20, 30, 40, 0.06), 0 1px 8px rgba(20, 30, 40, 0.04);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app { display: flex; min-height: 100vh; }

.sidebar {
  width: 232px;
  background: var(--primary-dark);
  color: #fff;
  flex-shrink: 0;
  padding: 20px 0;
  display: flex;
  flex-direction: column;
}

.brand { display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 16px 16px 18px; border-bottom: 1px solid rgba(255,255,255,0.12); margin-bottom: 12px; }
.brand-logo-card { background: #fff; border-radius: 8px; padding: 12px 14px; width: 100%; box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
.brand-logo { width: 100%; max-width: 178px; height: auto; display: block; margin: 0 auto; }
.brand-subtitle { font-size: 11.5px; letter-spacing: 0.04em; text-transform: uppercase; opacity: 0.65; }

.site-switcher-wrap { padding: 14px 20px 16px; border-bottom: 1px solid rgba(255,255,255,0.12); margin-bottom: 8px; }
.site-switcher-label { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; opacity: 0.65; margin-bottom: 6px; }
.site-switcher-wrap select {
  width: 100%; padding: 7px 10px; border-radius: 6px; border: 1px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.08); color: #fff; font-size: 13px;
}
.site-switcher-wrap select option { color: #1f2933; }

.nav-links { list-style: none; margin: 0; padding: 0; }
.nav-links a {
  display: block;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  padding: 10px 20px;
  font-size: 14px;
  border-left: 3px solid transparent;
}
.nav-links a:hover { background: rgba(255,255,255,0.08); }
.nav-links a.active { background: rgba(255,255,255,0.14); border-left-color: #fff; font-weight: 600; color: #fff; }

.content { flex: 1; padding: 24px 32px 60px; max-width: 1200px; }

.topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.topbar h1 { font-size: 22px; margin: 0; }
.topbar-right { display: flex; align-items: center; gap: 14px; }
.topbar-user { display: flex; align-items: center; gap: 10px; }
.topbar-user-name { font-size: 13.5px; color: var(--text-muted); }
.topbar-user-admin { font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; color: var(--primary); background: var(--primary-light); padding: 2px 6px; border-radius: 4px; margin-left: 4px; }

.login-screen {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--primary-dark); padding: 24px;
}
/* The app toggles this screen via the hidden="" attribute (see showApp() in app.js).
   Without this rule, the "display: flex" above wins over the browser's built-in
   hidden-attribute behavior, so the login card would stay visible — stacked above
   the dashboard — even after a successful login. */
.login-screen[hidden] {
  display: none;
}
.login-card {
  background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 32px 30px; width: 100%; max-width: 340px; text-align: center;
}
.login-logo-card { background: #fff; border-radius: 8px; padding: 10px 12px; margin: 0 auto 18px; max-width: 200px; box-shadow: 0 1px 3px rgba(0,0,0,0.12); }
.login-logo-card img { width: 100%; display: block; }
.login-card h1 { font-size: 19px; margin: 0 0 4px; }
.login-sub { font-size: 13px; color: var(--text-muted); margin: 0 0 20px; }
.login-card .form-row { text-align: left; margin-bottom: 14px; }
.login-error {
  background: var(--danger-bg); color: var(--danger); font-size: 12.5px; border-radius: 6px;
  padding: 8px 10px; margin-bottom: 14px; text-align: left;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 9px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.btn:hover { background: var(--primary-dark); }
.btn.secondary { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn.secondary:hover { background: var(--neutral-bg); }
.btn.danger { background: var(--danger); }
.btn.danger:hover { background: #a12f2f; }
.btn.small { padding: 5px 10px; font-size: 12px; }

.cards-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); }
.stat-card .stat-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 6px; }
.stat-card .stat-value { font-size: 28px; font-weight: 700; }
.stat-card .stat-sub { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.panel-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 20px; align-items: start; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 20px; }
.panel-header { padding: 14px 18px; border-bottom: 1px solid var(--border); font-weight: 600; font-size: 14px; display: flex; justify-content: space-between; align-items: center; }
.panel-body { padding: 8px 18px 16px; }
.panel-body.empty { color: var(--text-muted); font-size: 13px; padding: 16px 18px; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table th { text-align: left; color: var(--text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.02em; padding: 8px 10px; border-bottom: 1px solid var(--border); }
table td { padding: 10px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
table tr:last-child td { border-bottom: none; }
table tr.clickable:hover { background: var(--neutral-bg); cursor: pointer; }

.badge { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 600; white-space: nowrap; }
.badge.status-Open { background: var(--warning-bg); color: var(--warning); }
.badge.status-In-Progress { background: var(--primary-light); color: var(--primary); }
.badge.status-Completed { background: var(--success-bg); color: var(--success); }
.badge.status-Cancelled { background: var(--neutral-bg); color: var(--text-muted); }
.badge.priority-Low { background: var(--neutral-bg); color: var(--text-muted); }
.badge.priority-Medium { background: var(--primary-light); color: var(--primary); }
.badge.priority-High { background: var(--warning-bg); color: var(--warning); }
.badge.priority-Urgent { background: var(--danger-bg); color: var(--danger); }
.badge.asset-Active { background: var(--success-bg); color: var(--success); }
.badge.asset-Under-Maintenance { background: var(--warning-bg); color: var(--warning); }
.badge.asset-Retired { background: var(--neutral-bg); color: var(--text-muted); }
.badge.cost-Labor { background: var(--primary-light); color: var(--primary); }
.badge.cost-Materials { background: var(--warning-bg); color: var(--warning); }
.badge.cost-Contractor-Invoice { background: var(--success-bg); color: var(--success); }
.badge.cost-Other { background: var(--neutral-bg); color: var(--text-muted); }
.badge.criticality-Low { background: var(--neutral-bg); color: var(--text-muted); }
.badge.criticality-Medium { background: var(--primary-light); color: var(--primary); }
.badge.criticality-High { background: var(--danger-bg); color: var(--danger); }
.badge.severity-Low { background: var(--neutral-bg); color: var(--text-muted); }
.badge.severity-Medium { background: var(--warning-bg); color: var(--warning); }
.badge.severity-High { background: var(--danger-bg); color: var(--danger); }
.badge.type-Near-Miss { background: var(--neutral-bg); color: var(--text-muted); }
.badge.type-Hazard-Observation { background: var(--warning-bg); color: var(--warning); }
.badge.type-Incident { background: var(--danger-bg); color: var(--danger); }
.badge.status-Under-Review { background: var(--warning-bg); color: var(--warning); }
.badge.status-Closed { background: var(--success-bg); color: var(--success); }

.filters { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.filters select, .filters input { padding: 7px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; background: #fff; }

.modal-overlay {
  position: fixed; inset: 0; background: rgba(20,30,40,0.4);
  display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px;
}
.modal {
  background: #fff; border-radius: 10px; width: 560px; max-width: 100%;
  max-height: 88vh; overflow-y: auto; box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}
.modal-header { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.modal-header h2 { font-size: 17px; margin: 0; }
.modal-close { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text-muted); line-height: 1; }
.modal-body { padding: 18px 20px; }
.modal-footer { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 12.5px; font-weight: 600; margin-bottom: 5px; color: var(--text-muted); }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; font-family: inherit;
}
.form-row textarea { resize: vertical; min-height: 70px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }

.detail-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; margin-bottom: 16px; font-size: 13.5px; }
.detail-meta .meta-label { color: var(--text-muted); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.02em; }

.comment { padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 13.5px; }
.comment:last-child { border-bottom: none; }
.comment .comment-author { font-weight: 600; }
.comment .comment-time { color: var(--text-muted); font-size: 11.5px; margin-left: 6px; }

.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); }

.toast {
  position: fixed; bottom: 24px; right: 24px; background: var(--primary-dark); color: #fff;
  padding: 12px 18px; border-radius: 8px; font-size: 13.5px; box-shadow: var(--shadow); z-index: 200;
}

@media (max-width: 900px) {
  .cards-row { grid-template-columns: repeat(2, 1fr); }
  .panel-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}