:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --border: #2a2d3a;
  --text: #e1e4ed;
  --text-dim: #8b8fa3;
  --accent: #4f8ff7;
  --green: #34d399;
  --yellow: #fbbf24;
  --orange: #f97316;
  --red: #ef4444;
  --purple: #a78bfa;
  --radius: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

/* ── Top bar ─────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.topbar h1 { font-size: 16px; font-weight: 600; letter-spacing: 0.5px; }
.topbar h1 span { color: var(--accent); }
.topbar-right { display: flex; align-items: center; gap: 16px; }
.shift-badge {
  background: var(--accent);
  color: #fff;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.shift-badge.none { background: var(--border); color: var(--text-dim); }
.refresh-time { font-size: 11px; color: var(--text-dim); }

/* ── Nav tabs ────────────────────────────────────── */
.nav-tabs {
  display: flex;
  gap: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}
.nav-tab {
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}
.nav-tab:hover { color: var(--text); }
.nav-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ── Layout ──────────────────────────────────────── */
.page { display: none; padding: 24px; }
.page.active { display: block; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ── Cards ───────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.card-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
}

/* ── Stat boxes ──────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.stat-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}
.stat-value { font-size: 28px; font-weight: 700; }
.stat-label { font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; margin-top: 4px; }
.stat-box.critical { border-left: 3px solid var(--red); }
.stat-box.critical .stat-value { color: var(--red); }
.stat-box.warning { border-left: 3px solid var(--yellow); }
.stat-box.warning .stat-value { color: var(--yellow); }
.stat-box.success { border-left: 3px solid var(--green); }
.stat-box.success .stat-value { color: var(--green); }
.stat-box.info { border-left: 3px solid var(--accent); }
.stat-box.info .stat-value { color: var(--accent); }

/* ── Tables ──────────────────────────────────────── */
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}
td {
  padding: 10px 12px;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
}
tr:last-child td { border-bottom: none; }
tr:hover { background: rgba(79, 143, 247, 0.04); }

/* ── Badges ──────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}
.badge-critical { background: rgba(239,68,68,0.15); color: var(--red); }
.badge-error { background: rgba(249,115,22,0.15); color: var(--orange); }
.badge-warning { background: rgba(251,191,36,0.15); color: var(--yellow); }
.badge-info { background: rgba(79,143,247,0.15); color: var(--accent); }
.badge-open { background: rgba(79,143,247,0.15); color: var(--accent); }
.badge-in_progress { background: rgba(251,191,36,0.15); color: var(--yellow); }
.badge-completed { background: rgba(52,211,153,0.15); color: var(--green); }
.badge-cancelled { background: rgba(139,143,163,0.15); color: var(--text-dim); }
.badge-active { background: rgba(52,211,153,0.15); color: var(--green); }
.badge-acknowledged { background: rgba(251,191,36,0.15); color: var(--yellow); }
.badge-resolved { background: rgba(139,143,163,0.15); color: var(--text-dim); }

/* ── Buttons ─────────────────────────────────────── */
.btn {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  transition: all 0.15s;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: #3a7ae0; }
.btn-sm { padding: 3px 8px; font-size: 11px; }

/* ── Forms / Modals ──────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  align-items: center;
  justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 480px;
  max-height: 80vh;
  overflow-y: auto;
}
.modal h2 { font-size: 16px; margin-bottom: 16px; }
.form-group { margin-bottom: 14px; }
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 8px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; }

/* ── SLA Countdown ────────────────────────────────── */
.sla-countdown { font-size: 12px; font-weight: 600; font-variant-numeric: tabular-nums; }
.sla-ok { color: var(--green); }
.sla-warn { color: var(--yellow); }
.sla-danger { color: var(--orange); }
.sla-breached { color: var(--red); animation: pulse 1.5s ease-in-out infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ── Severity row highlights ─────────────────────── */
tr.row-critical { border-left: 3px solid var(--red); }
tr.row-critical td:first-child { padding-left: 9px; }
tr.row-error { border-left: 3px solid var(--orange); }
tr.row-error td:first-child { padding-left: 9px; }
tr.row-warning { border-left: 3px solid var(--yellow); }
tr.row-warning td:first-child { padding-left: 9px; }
tr.row-info { border-left: 3px solid var(--accent); }
tr.row-info td:first-child { padding-left: 9px; }

/* ── Toast notifications ─────────────────────────── */
.toast-container {
  position: fixed;
  top: 60px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 13px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  animation: slideIn 0.3s ease-out;
  max-width: 320px;
}
.toast.success { border-left: 3px solid var(--green); }
.toast.error { border-left: 3px solid var(--red); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ── Auto-fill button ────────────────────────────── */
.btn-autofill { background: var(--purple); color: #fff; border-color: var(--purple); }
.btn-autofill:hover { background: #9171f0; border-color: #9171f0; color: #fff; }

/* ── Empty state ─────────────────────────────────── */
.empty { text-align: center; padding: 32px; color: var(--text-dim); font-size: 13px; }

/* ── Responsive ──────────────────────────────────── */
@media (max-width: 900px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Login screen ────────────────────────────────── */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg);
}
.login-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  width: 360px;
  text-align: center;
}
.login-box h1 { font-size: 18px; margin-bottom: 8px; }
.login-box h1 span { color: var(--accent); }
.login-box p { font-size: 13px; color: var(--text-dim); margin-bottom: 20px; }
.login-box input {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  margin-bottom: 12px;
}


/* ── Mobile responsive ───────────────────────────── */
@media (max-width: 768px) {
  .topbar { flex-direction: column; gap: 8px; padding: 10px 16px; }
  .topbar-right { width: 100%; justify-content: space-between; }
  .nav-tabs { overflow-x: auto; padding: 0 8px; -webkit-overflow-scrolling: touch; }
  .nav-tab { padding: 8px 12px; font-size: 12px; white-space: nowrap; }
  .page { padding: 12px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 8px; }
  .stat-box { padding: 10px; }
  .stat-value { font-size: 22px; }
  .card { padding: 12px; }
  .card-header { flex-direction: column; gap: 8px; align-items: flex-start; }
  .modal { width: 95vw !important; padding: 16px; max-height: 90vh; }
  table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  th, td { white-space: nowrap; padding: 6px 8px; font-size: 12px; }
  .btn { padding: 5px 10px; font-size: 11px; }
  .form-group input, .form-group select, .form-group textarea { font-size: 16px; }
}

/* ── Filter bar ──────────────────────────────────── */
.card-header > div { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; }


/* ── Kanban board ─────────────────────────────────── */
.kanban { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; min-height: 300px; }
.kanban-col { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px; }
.kanban-col-header { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-dim); margin-bottom: 10px; display: flex; justify-content: space-between; align-items: center; }
.kanban-col-header .count { background: var(--border); color: var(--text); padding: 1px 7px; border-radius: 10px; font-size: 11px; }
.kanban-card { background: var(--surface); border: 1px solid var(--border); border-radius: 6px; padding: 10px; margin-bottom: 8px; cursor: pointer; transition: border-color 0.15s; }
.kanban-card:hover { border-color: var(--accent); }
.kanban-card-title { font-size: 13px; font-weight: 500; margin-bottom: 4px; }
.kanban-card-meta { font-size: 11px; color: var(--text-dim); display: flex; justify-content: space-between; }
.kanban-card-actions { margin-top: 6px; display: flex; gap: 4px; }
.kanban-col.col-open { border-top: 3px solid var(--accent); }
.kanban-col.col-in_progress { border-top: 3px solid var(--yellow); }
.kanban-col.col-completed { border-top: 3px solid var(--green); }
.kanban-col.col-cancelled { border-top: 3px solid var(--text-dim); }
@media (max-width: 768px) { .kanban { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .kanban { grid-template-columns: 1fr; } }


/* ── Handover bar ────────────────────────────────── */
#d-handover-bar .btn { vertical-align: middle; }


/* ── Guide styling ───────────────────────────────── */
.guide-h2 { font-size: 20px; font-weight: 700; color: var(--text); margin: 28px 0 12px; padding-bottom: 8px; border-bottom: 2px solid var(--accent); }
.guide-h3 { font-size: 16px; font-weight: 600; color: var(--accent); margin: 24px 0 10px; }
.guide-h4 { font-size: 14px; font-weight: 600; color: var(--text); margin: 18px 0 8px; }
.guide-hr { border: none; border-top: 1px solid var(--border); margin: 24px 0; }
.guide-p { margin: 4px 0; line-height: 1.7; }
.guide-spacer { height: 8px; }
.guide-code { background: var(--bg); padding: 2px 6px; border-radius: 4px; font-size: 12px; font-family: monospace; color: var(--accent); }
.guide-list { margin: 6px 0 6px 24px; line-height: 1.8; }
.guide-list li { margin: 2px 0; }
.guide-checklist { list-style: none; margin: 6px 0 6px 8px; line-height: 2; }
.guide-checklist li { margin: 2px 0; }
.guide-table { width: 100%; border-collapse: collapse; margin: 10px 0; font-size: 13px; }
.guide-table th { background: var(--bg); padding: 8px 12px; text-align: left; font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.3px; color: var(--text-dim); border: 1px solid var(--border); }
.guide-table td { padding: 8px 12px; border: 1px solid var(--border); }
.guide-table tr:hover { background: rgba(79, 143, 247, 0.04); }


/* ── Tooltips ────────────────────────────────────── */
[data-tip] { position: relative; cursor: help; }
[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: #1a1d27;
  color: #e1e4ed;
  border: 1px solid #2a2d3a;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.5;
  white-space: normal;
  width: max-content;
  max-width: 280px;
  z-index: 999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  text-transform: none;
  letter-spacing: normal;
}
[data-tip]:hover::after { opacity: 1; }
.nav-tab[data-tip]::after { bottom: auto; top: 100%; margin-top: 4px; }
label[data-tip] { cursor: help; border-bottom: 1px dotted var(--text-dim); }

/* ── Sherlock View V2 ─────────────────────────────── */
.sherlock-panel { margin-bottom: 16px; }
.sherlock-panel-header {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}
.sherlock-card {
  margin-bottom: 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card, var(--surface));
  overflow: hidden;
}
.sherlock-card summary {
  padding: 10px 14px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sherlock-card summary::-webkit-details-marker { display: none; }
.sherlock-card summary::after {
  content: '▶';
  margin-left: auto;
  font-size: 9px;
  color: var(--text-dim);
  transition: transform 0.2s;
}
.sherlock-card[open] summary::after { transform: rotate(90deg); }
.sherlock-card[open] summary { border-bottom: 1px solid var(--border); }
.sherlock-card-body { padding: 12px 14px; }
.sherlock-card-badge {
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 3px;
  background: var(--surface);
  color: var(--text-dim);
  font-weight: 500;
}
.sherlock-act-bar {
  position: sticky;
  bottom: 0;
  background: var(--surface);
  border-top: 2px solid var(--border);
  padding: 12px 16px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  border-radius: 0 0 8px 8px;
}
.sherlock-act-bar .bucket-label {
  font-size: 12px;
  font-weight: 700;
  flex: 1;
  min-width: 200px;
}
.sherlock-act-bar .act-buttons { display: flex; gap: 8px; }
.sherlock-act-bar .act-buttons .btn {
  font-size: 11px;
  padding: 6px 14px;
  border-radius: 6px;
  font-weight: 600;
}