:root {
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
  --bg-card: #ffffff;
  --border: #e5e7eb;
  --border-strong: #d1d5db;
  --text: #111827;
  --text-soft: #4b5563;
  --text-muted: #6b7280;
  --accent: #059669;
  --accent-dark: #047857;
  --accent-soft: #d1fae5;
  --accent-bg: #ecfdf5;
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --warning: #d97706;
  --warning-bg: #fffbeb;
  --info: #2563eb;
  --info-bg: #eff6ff;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.10);
  --radius: 14px;
  --radius-sm: 8px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, 'Segoe UI', Roboto, sans-serif;
}

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

html, body {
  font-family: var(--font);
  background: var(--bg-soft);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============ TOPBAR ============ */
.topbar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 16px 32px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

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

.logo-dot {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  position: relative;
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.25);
}

.logo-dot::after {
  content: '';
  position: absolute;
  inset: 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.25);
}

.brand-name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.brand-baseline {
  font-size: 12px;
  color: var(--text-muted);
}

.page-nav {
  display: flex;
  gap: 8px;
  margin: 0 16px;
}
.page-nav-link {
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  color: #475569;
  text-decoration: none;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  transition: all 0.15s ease;
  white-space: nowrap;
}
.page-nav-link:hover {
  background: #e2e8f0;
  color: #0f172a;
}
.page-nav-link.active {
  background: var(--accent);
  color: #fff;
  border-color: #047857;
}

.view-switch {
  display: flex;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  gap: 4px;
}

.switch-btn {
  border: none;
  background: transparent;
  padding: 8px 16px;
  border-radius: 999px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-soft);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.switch-btn.active {
  background: var(--bg);
  color: var(--accent-dark);
  box-shadow: var(--shadow-sm);
}

.switch-btn:hover:not(.active) {
  color: var(--text);
}

.user-block {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-self: end;
}

.user-meta { text-align: right; }
.user-name { font-size: 13px; font-weight: 600; }
.user-role { font-size: 11px; color: var(--text-muted); }

.user-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--text-soft);
  font-size: 13px;
  border: 1px solid var(--border);
}

/* ============ MAIN ============ */
main {
  max-width: 1440px;
  margin: 0 auto;
  padding: 28px 32px 80px;
}

.view { display: none; animation: fadeIn 0.25s ease; }
.view.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.view-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
  gap: 24px;
  flex-wrap: wrap;
}

.view-header h1 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-tag {
  font-size: 11px;
  background: var(--accent-bg);
  color: var(--accent-dark);
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0;
  border: 1px solid var(--accent-soft);
}

.view-sub {
  color: var(--text-muted);
  margin-top: 6px;
  font-size: 13px;
}

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

.site-select {
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  color: var(--text);
}

/* ============ BUTTONS ============ */
.btn {
  border: none;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-primary {
  background: var(--accent);
  color: white;
}
.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.25);
}

.btn-secondary {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: var(--bg-soft);
  border-color: var(--border-strong);
}

.btn-ghost {
  background: transparent;
  color: var(--accent-dark);
}
.btn-ghost:hover { background: var(--accent-bg); }

/* ============ KPI ============ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
}

.kpi-card.warning::before { background: var(--warning); }
.kpi-card.alert::before { background: var(--danger); }

.kpi-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.kpi-value {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 6px;
}

.kpi-trend {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.kpi-trend.up { color: var(--accent-dark); }
.kpi-trend.down { color: var(--danger); }

/* ============ CARDS ============ */
.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  gap: 12px;
}

.card-header h2 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.card-actions { display: flex; gap: 8px; }

.badge {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--text-muted);
  font-weight: 600;
  border: 1px solid var(--border);
}

.badge.live {
  background: var(--accent-bg);
  color: var(--accent-dark);
  border-color: var(--accent-soft);
}

.badge.ai {
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
  color: var(--accent-dark);
  border-color: var(--accent-soft);
}

/* ============ TABLES ============ */
.table-wrap { overflow-x: auto; margin: 0 -6px; padding: 0 6px; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table thead th {
  text-align: left;
  padding: 10px 12px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--bg-soft);
}

.data-table tbody td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table tbody tr:hover { background: var(--bg-soft); }

.data-table tfoot td {
  padding: 12px;
  font-weight: 700;
  border-top: 2px solid var(--text);
  background: var(--bg-soft);
}

.editable-col input {
  border: 1px solid var(--border);
  background: var(--bg);
  padding: 6px 10px;
  border-radius: 6px;
  font-family: inherit;
  font-size: 13px;
  width: 100px;
  text-align: right;
  color: var(--text);
  transition: all 0.15s ease;
}

.editable-col input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
}

.marque-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.marque-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.status-pill {
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.status-ok {
  background: var(--accent-bg);
  color: var(--accent-dark);
  border: 1px solid var(--accent-soft);
}

.status-warning {
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid #fde68a;
}

.status-alert {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid #fecaca;
}

.value-positive { color: var(--accent-dark); font-weight: 600; }
.value-negative { color: var(--danger); font-weight: 600; }
.value-neutral { color: var(--text-soft); }

.table-hint {
  margin-top: 14px;
  padding: 10px 14px;
  background: var(--info-bg);
  color: var(--info);
  border-radius: 8px;
  border-left: 3px solid var(--info);
  font-size: 12px;
}

/* ============ SIMULATION ============ */
.simulation-card {
  border: 2px solid var(--accent-soft);
  background: linear-gradient(180deg, var(--accent-bg) 0%, var(--bg) 100%);
}

.simu-intro {
  font-size: 13px;
  color: var(--text-soft);
  margin-bottom: 16px;
}

.simu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
  gap: 16px;
  margin-bottom: 20px;
}

.simu-block label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.simu-block select {
  width: 100%;
  padding: 9px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  font-family: inherit;
  font-size: 13px;
}

#simu-hours { width: 100%; accent-color: var(--accent); }

.simu-results {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--bg);
  border-radius: 10px;
  border: 1px solid var(--border);
  margin-bottom: 16px;
}

.simu-result-card {
  flex: 1;
  text-align: center;
  padding: 12px;
}

.simu-result-card.highlight {
  background: var(--accent-bg);
  border-radius: 8px;
  border: 1px solid var(--accent-soft);
}

.simu-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  margin-bottom: 6px;
}

.simu-value { font-size: 20px; font-weight: 700; }

.simu-arrow {
  font-size: 22px;
  color: var(--accent);
  font-weight: 700;
}

.simu-delta {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-dark);
  padding: 8px 14px;
  background: var(--bg);
  border-radius: 999px;
  border: 1px solid var(--accent-soft);
}

.simu-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.hidden { display: none !important; }

/* ============ RECO LIST ============ */
.reco-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.reco-item {
  display: flex;
  gap: 14px;
  padding: 14px 16px;
  background: var(--bg-soft);
  border-radius: 10px;
  border-left: 3px solid var(--accent);
}

.reco-item.warning { border-left-color: var(--warning); }
.reco-item.alert { border-left-color: var(--danger); }

.reco-icon {
  font-size: 22px;
  flex-shrink: 0;
}

.reco-content { flex: 1; }

.reco-title {
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 4px;
}

.reco-desc {
  font-size: 12px;
  color: var(--text-soft);
  line-height: 1.5;
}

/* ============ FOOTER ============ */
footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding: 16px 32px;
}

.footer-content {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-muted);
}

.footer-meta { font-style: italic; }

/* ============ AI RECO ============ */
.ai-reco {
  background: linear-gradient(180deg, #f0fdf4 0%, var(--bg) 100%);
  border: 1px solid var(--accent-soft);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1100px) {
  .row { grid-template-columns: 1fr; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .topbar { grid-template-columns: 1fr; gap: 12px; padding: 12px 16px; }
  .view-switch { justify-self: start; }
  .user-block { justify-self: start; }
}