/* =============================================
   KPI Dashboard — Main Stylesheet
   ============================================= */

:root {
  --accent: #4f6ef7;
  --accent-light: #eef0ff;
  --accent-hover: #3a56d4;
  --star: #f59e0b;
  --star-light: #fffbeb;
  --success: #10b981;
  --success-light: #ecfdf5;
  --danger: #ef4444;
  --danger-light: #fef2f2;
  --warning: #f97316;
  --warning-light: #fff7ed;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --bg-page: #f1f5f9;
  --bg-card: #ffffff;
  --bg-sidebar: #1e293b;
  --bg-sidebar-hover: #334155;
  --bg-sidebar-active: #4f6ef7;
  --sidebar-text: #cbd5e1;
  --sidebar-text-active: #ffffff;
  --sidebar-width: 240px;
  --topbar-height: 60px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 4px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --transition: all .2s ease;
}

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

html, body {
  height: 100%;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
}

/* =========== LAYOUT =========== */
body { display: flex; }

/* =========== SIDEBAR =========== */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  display: flex;
  flex-direction: column;
  z-index: 200;
  transition: transform .3s ease;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 16px 14px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 34px;
  height: 34px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 15px;
}

.brand-name {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -.2px;
}

.sidebar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--sidebar-text);
  cursor: pointer;
  font-size: 16px;
  padding: 4px;
  border-radius: 4px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: none;
  background: none;
  cursor: pointer;
  color: var(--sidebar-text);
  font-size: 13.5px;
  font-weight: 500;
  width: 100%;
  text-align: left;
  transition: var(--transition);
}

.nav-item i { width: 18px; text-align: center; font-size: 14px; }

.nav-item:hover {
  background: var(--bg-sidebar-hover);
  color: #fff;
}

.nav-item.active {
  background: var(--bg-sidebar-active);
  color: var(--sidebar-text-active);
  font-weight: 600;
}

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid rgba(255,255,255,.06);
}

.version { font-size: 11px; color: rgba(255,255,255,.25); }

/* =========== MAIN =========== */
.main {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* =========== TOPBAR =========== */
.topbar {
  height: var(--topbar-height);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 4px;
}

.topbar-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

.month-filter {
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-primary);
  background: var(--bg-page);
  cursor: pointer;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
}

.month-filter:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-light); }

/* =========== VIEWS =========== */
.view {
  display: none;
  padding: 28px 28px 48px;
  flex: 1;
}

.view.active { display: block; }

.view-header { margin-bottom: 24px; }

.view-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.view-subtitle {
  font-size: 13.5px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* =========== KPI CARDS =========== */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px 20px 18px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: var(--transition);
  cursor: default;
}

.kpi-card:hover { box-shadow: var(--shadow); transform: translateY(-1px); }

.kpi-card.primary { border-top: 3px solid var(--accent); }
.kpi-card.star { border-top: 3px solid var(--star); background: var(--star-light); }

.kpi-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}

.kpi-card.star .kpi-icon { background: rgba(245,158,11,.15); color: var(--star); }

.kpi-body { flex: 1; min-width: 0; }

.kpi-label {
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.kpi-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 4px;
}

.kpi-sub {
  font-size: 11.5px;
  color: var(--text-muted);
}

.badge-primary {
  background: var(--accent);
  color: #fff;
  font-size: 9.5px;
  padding: 2px 6px;
  border-radius: 20px;
  letter-spacing: .3px;
  font-weight: 700;
  text-transform: uppercase;
}

/* status coloring */
.val-good  { color: var(--success) !important; }
.val-warn  { color: var(--warning) !important; }
.val-bad   { color: var(--danger)  !important; }

/* =========== WEEK PILLS =========== */
.week-pills-wrapper { margin-bottom: 24px; }

.section-label {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.week-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.week-pill {
  padding: 6px 14px;
  border-radius: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
}

.week-pill:hover { border-color: var(--accent); color: var(--accent); }

.week-pill.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

.no-data-msg {
  font-size: 13px;
  color: var(--text-muted);
  font-style: italic;
}

/* =========== CHARTS =========== */
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

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

.chart-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.chart-wrap { position: relative; }

/* =========== FORM CARDS =========== */
.form-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  max-width: 800px;
}

.form-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 8px;
}

.form-card-header h2 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-row.four-col {
  grid-template-columns: repeat(4, 1fr);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-secondary);
}

.optional {
  font-weight: 400;
  color: var(--text-muted);
}

input[type="text"],
input[type="number"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-page);
  outline: none;
  transition: var(--transition);
}

input:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-light); background: #fff; }

.form-section-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-secondary);
  margin: 20px 0 12px;
  display: flex;
  align-items: center;
  gap: 7px;
}

.form-section-title i { color: var(--accent); }

/* Live Preview */
.form-preview {
  background: var(--accent-light);
  border: 1px solid rgba(79,110,247,.2);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  margin: 20px 0 0;
}

.preview-title {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--accent);
  margin-bottom: 12px;
}

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

.preview-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.preview-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: .3px;
}

.preview-val {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.star-item .preview-label { color: var(--star); }
.star-item .preview-val   { color: var(--star); }
.star-sm { font-size: 10px; color: var(--star); }

.form-actions {
  margin-top: 22px;
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* =========== BUTTONS =========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 600;
  font-family: inherit;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #c53030; }

.btn-ghost { background: none; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--border-light); color: var(--text-primary); }

.btn-sm { padding: 6px 12px; font-size: 12.5px; }

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px 7px;
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 13px;
  transition: var(--transition);
}

.btn-icon:hover { background: var(--border-light); color: var(--text-primary); }
.btn-icon.danger:hover { background: var(--danger-light); color: var(--danger); }

/* =========== OVERHEAD LAYOUT =========== */
.overhead-layout {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 20px;
  align-items: start;
}

.overhead-form-card { max-width: 100%; }

.overhead-table-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 0;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  overflow: hidden;
}

.overhead-table-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-page);
}

.overhead-month-label {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.overhead-total-row, .overhead-per-week-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-secondary);
  padding: 2px 0;
}

.overhead-total-val {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 15px;
}

.overhead-per-week-val {
  font-weight: 700;
  color: var(--accent);
  font-size: 14px;
}

/* =========== DATA TABLES =========== */
.table-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  overflow: hidden;
}

.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-wrap: wrap;
}

.table-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-page);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 12px;
  flex: 1;
  max-width: 340px;
}

.table-search i { color: var(--text-muted); font-size: 13px; }

.table-search input {
  background: none;
  border: none;
  outline: none;
  font-size: 13px;
  color: var(--text-primary);
  width: 100%;
  padding: 0;
}

.table-wrap { overflow-x: auto; }

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

.data-table th {
  padding: 11px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table th.num, .data-table td.num { text-align: right; }

.data-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
  white-space: nowrap;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--bg-page); }

.empty-row td {
  text-align: center;
  color: var(--text-muted);
  font-style: italic;
  padding: 32px;
}

.star-th { color: var(--star); margin-left: 4px; font-size: 10px; }

.actions-col { width: 80px; text-align: center !important; }

/* =========== TOAST =========== */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
}

.toast {
  background: #1e293b;
  color: #fff;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 500;
  box-shadow: 0 4px 20px rgba(0,0,0,.25);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn .25s ease;
  max-width: 340px;
}

.toast.success { background: var(--success); }
.toast.error   { background: var(--danger);  }
.toast.warning { background: var(--warning); }

@keyframes slideIn {
  from { transform: translateX(60px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* =========== MODAL =========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9000;
}

.modal {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px;
  max-width: 380px;
  width: 90%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
  animation: popIn .2s ease;
}

@keyframes popIn {
  from { transform: scale(.92); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

.modal-icon { font-size: 32px; color: var(--warning); margin-bottom: 12px; }
.modal-title { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.modal-body { font-size: 13.5px; color: var(--text-secondary); margin-bottom: 24px; }

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}

/* =========== SCROLLBAR =========== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 3px; }

/* =========== RESPONSIVE =========== */
@media (max-width: 1100px) {
  .charts-row { grid-template-columns: 1fr; }
  .overhead-layout { grid-template-columns: 1fr; }
  .overhead-form-card { max-width: 100%; }
}

@media (max-width: 860px) {
  :root { --sidebar-width: 0px; }
  .sidebar {
    width: 240px;
    transform: translateX(-100%);
  }
  .sidebar.open { transform: translateX(0); }
  .menu-btn { display: block; }
  .main { margin-left: 0; }
  .view { padding: 20px 16px 48px; }
  .form-row.four-col { grid-template-columns: 1fr 1fr; }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .preview-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 580px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .form-row.four-col { grid-template-columns: 1fr 1fr; }
  .preview-grid { grid-template-columns: 1fr 1fr; }
}