:root {
  --bg: #0b0f17;
  --panel: #121928;
  --panel-soft: #1a2335;
  --text: #e8edf9;
  --muted: #9aa7bf;
  --accent: #5eead4;
  --accent-2: #38bdf8;
  --danger: #f87171;
  --warning: #fbbf24;
  --ok: #4ade80;
  --border: rgba(255, 255, 255, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at top right, #16223f, var(--bg) 40%);
  color: var(--text);
}

.app-shell { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.sidebar {
  border-right: 1px solid var(--border);
  padding: 24px 18px;
  background: rgba(9, 14, 23, 0.8);
  backdrop-filter: blur(8px);
}
.brand { display: flex; gap: 12px; align-items: center; margin-bottom: 28px; }
.brand h1 { font-size: 1rem; margin: 0; }
.brand p { margin: 2px 0 0; color: var(--muted); font-size: 0.85rem; }
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: #00131a;
  font-weight: 800;
}

.nav-links { display: grid; gap: 8px; }
.nav-links a { text-decoration: none; color: var(--muted); padding: 10px 12px; border-radius: 10px; }
.nav-links a.active, .nav-links a:hover { background: var(--panel-soft); color: var(--text); }

.content { padding: 26px; display: grid; gap: 18px; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.topbar h2 { margin: 0 0 4px; font-size: 1.4rem; }
.topbar p { margin: 0; color: var(--muted); }

.kpi-grid { display: grid; gap: 14px; grid-template-columns: repeat(3, minmax(180px, 1fr)); }
.kpi-card {
  background: linear-gradient(160deg, #161f33, #101726);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}
.kpi-card .label { color: var(--muted); font-size: 0.85rem; }
.kpi-card .value { margin-top: 8px; font-size: 1.7rem; font-weight: 800; }
.kpi-card.due .value { color: var(--warning); }
.kpi-card.overdue .value { color: var(--danger); }
.kpi-card.completed .value { color: var(--ok); }

.panel {
  background: rgba(13, 20, 34, 0.9);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 12px; }
.panel-head h3 { margin: 0; }
.toolbar { display: flex; gap: 8px; }
input, select, textarea {
  width: 100%;
  background: #0f1627;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
}

.preset-row { display: flex; gap: 8px; margin: 10px 0 14px; flex-wrap: wrap; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 740px; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
th { color: var(--muted); font-weight: 600; }

.site-cards { display: none; gap: 10px; }
.site-card {
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}
.site-card-header { display: flex; justify-content: space-between; gap: 10px; align-items: flex-start; }
.site-card h4 { margin: 0; font-size: 0.98rem; }
.site-card .meta { color: var(--muted); font-size: 0.84rem; margin-top: 4px; }
.site-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 10px;
}
.site-card-grid .label { color: var(--muted); font-size: 0.75rem; display: block; margin-bottom: 2px; }
.site-card-actions { display: flex; gap: 8px; margin-top: 12px; }
.site-card-actions .btn { flex: 1; }

.status-chip, .urgency-chip {
  display: inline-flex;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}
.status-due { background: rgba(251, 191, 36, 0.15); color: var(--warning); }
.status-overdue { background: rgba(248, 113, 113, 0.18); color: var(--danger); }
.status-completed { background: rgba(74, 222, 128, 0.16); color: var(--ok); }

.urgency-red { background: rgba(248, 113, 113, 0.2); color: #ff8a8a; }
.urgency-amber { background: rgba(251, 191, 36, 0.2); color: #ffd670; }
.urgency-green { background: rgba(74, 222, 128, 0.2); color: #70eaa2; }

.visit-form { display: grid; gap: 12px; }
.form-grid { display: grid; grid-template-columns: repeat(4, minmax(140px, 1fr)); gap: 10px; }
label { display: grid; gap: 6px; font-size: 0.86rem; color: var(--muted); position: relative; }
.first-step label { background: rgba(255,255,255,0.02); padding: 8px; border-radius: 10px; }

.field-hint {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.field-hint.optional { color: var(--muted); }
.field-hint.required { color: #86efac; }

.advanced-fields {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  background: rgba(255,255,255,0.02);
}
.advanced-fields summary { cursor: pointer; color: var(--accent); margin-bottom: 10px; }

.history-list { display: grid; gap: 10px; }
.history-item {
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}
.history-item strong { display: block; margin-bottom: 5px; }
.history-meta { color: var(--muted); font-size: 0.85rem; }

.manager-grid { display: grid; grid-template-columns: repeat(3, minmax(160px, 1fr)); gap: 10px; }
.manager-card {
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}
.manager-card .metric { font-size: 1.4rem; font-weight: 800; margin-top: 6px; }

.summary-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #0f1627;
  padding: 14px;
}
.summary-grid { display: grid; grid-template-columns: repeat(2, minmax(140px, 1fr)); gap: 8px; }
.summary-actions { display: flex; gap: 8px; margin-top: 12px; }

.status-stack { display: inline-flex; align-items: center; gap: 8px; }

.connection-status {
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 700;
  border: 1px solid var(--border);
  color: var(--muted);
  background: rgba(154, 167, 191, 0.1);
}
.connection-status[data-state='connected'] {
  color: var(--ok);
  border-color: rgba(74, 222, 128, 0.35);
  background: rgba(74, 222, 128, 0.14);
}
.connection-status[data-state='offline'],
.connection-status[data-state='save-failed'] {
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.35);
  background: rgba(248, 113, 113, 0.14);
}
.connection-status[data-state='syncing'] {
  color: var(--warning);
  border-color: rgba(251, 191, 36, 0.35);
  background: rgba(251, 191, 36, 0.14);
}

.offline-badge {
  display: none;
  background: rgba(248, 113, 113, 0.16);
  color: var(--danger);
  border: 1px solid rgba(248,113,113,0.3);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 700;
}
.offline .offline-badge { display: inline-flex; }

.draft-notice {
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: 10px;
  padding: 10px;
  margin-bottom: 10px;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.form-feedback {
  border-radius: 10px;
  border: 1px solid rgba(248, 113, 113, 0.35);
  background: rgba(248, 113, 113, 0.14);
  color: #ffd4d4;
  padding: 10px;
  font-size: 0.85rem;
}

.submit-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.last-action {
  font-size: 0.82rem;
  color: var(--muted);
}

.last-action.success { color: var(--ok); }
.last-action.error { color: var(--danger); }
.last-action.info { color: var(--warning); }

.field-error {
  color: #fecaca;
  font-size: 0.78rem;
}

.field-invalid {
  border-color: rgba(248, 113, 113, 0.75);
  box-shadow: 0 0 0 1px rgba(248, 113, 113, 0.25);
}

.field-valid {
  border-color: rgba(74, 222, 128, 0.75);
  box-shadow: 0 0 0 1px rgba(74, 222, 128, 0.2);
}

.field-valid-icon {
  position: absolute;
  right: 12px;
  top: 57px;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  font-size: 0.78rem;
  font-weight: 800;
  color: #07210f;
  background: #4ade80;
  pointer-events: none;
}

.toast-region {
  position: fixed;
  right: 16px;
  bottom: 16px;
  display: grid;
  gap: 8px;
  z-index: 1000;
}

.toast {
  border-radius: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  background: #0f1627;
  min-width: 220px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  font-size: 0.85rem;
}

.toast.success { border-color: rgba(74, 222, 128, 0.45); color: #c8ffd8; }
.toast.error { border-color: rgba(248, 113, 113, 0.45); color: #ffd4d4; }
.toast.info { border-color: rgba(251, 191, 36, 0.45); color: #ffe7a6; }

.btn {
  border: none;
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
}
.btn-primary { background: linear-gradient(135deg, var(--accent-2), var(--accent)); color: #052027; }
.btn-ghost { background: #172138; color: var(--text); border: 1px solid var(--border); }
.preset-btn.active { border-color: var(--accent); color: var(--accent); }

.hidden { display: none !important; }
.mobile-cta {
  position: fixed;
  left: 14px;
  right: 14px;
  bottom: 12px;
  z-index: 40;
  display: none;
}

@media (max-width: 980px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { border-right: none; border-bottom: 1px solid var(--border); }
  .kpi-grid, .manager-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: repeat(2, minmax(120px, 1fr)); }
}

@media (max-width: 560px) {
  .content { padding: 14px 14px 132px; }
  .topbar { flex-direction: column; align-items: flex-start; }
  .stack-mobile { flex-direction: column; align-items: flex-start; }
  .toolbar { flex-direction: column; width: 100%; }
  .form-grid, .summary-grid { grid-template-columns: 1fr; }
  .table-wrap { display: none; }
  .site-cards { display: grid; }
  .site-card-grid { grid-template-columns: 1fr; }
  .mobile-cta { display: inline-flex; justify-content: center; bottom: calc(12px + env(safe-area-inset-bottom, 0px)); }
  .visit-form > label:last-of-type { margin-bottom: 8px; }
}

@media print {
  .sidebar, .topbar, .manager-panel, #history, #sites, #log, .mobile-cta { display: none !important; }
  .content { padding: 0; }
  #visitSummary.hidden { display: block !important; }
  .summary-actions { display: none; }
}