/* ============================================================
   Oriental Fastech Costing System — Corporate Theme
   ============================================================ */

/* --- Variables --- */
:root {
  --primary:        #1e40af;
  --primary-light:  #3b82f6;
  --primary-dark:   #1e3a8a;
  --sidebar-bg:     #1f2937;
  --sidebar-text:   #9ca3af;
  --sidebar-active: #1e40af;
  --sidebar-hover:  #374151;
  --topbar-bg:      #ffffff;
  --content-bg:     #f3f4f6;
  --card-bg:        #ffffff;
  --border:         #e5e7eb;
  --border-dark:    #d1d5db;
  --text-primary:   #111827;
  --text-secondary: #6b7280;
  --text-muted:     #9ca3af;
  --success:        #16a34a;
  --success-bg:     #f0fdf4;
  --warning:        #d97706;
  --warning-bg:     #fffbeb;
  --danger:         #dc2626;
  --danger-bg:      #fef2f2;
  --info:           #0284c7;
  --info-bg:        #f0f9ff;
  --orange:         #ea580c;
  --orange-bg:      #fff7ed;
  --shadow-sm:      0 1px 2px rgba(0,0,0,0.05);
  --shadow:         0 1px 3px rgba(0,0,0,0.10), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md:      0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg:      0 10px 15px rgba(0,0,0,0.10), 0 4px 6px rgba(0,0,0,0.05);
  --radius-sm:      4px;
  --radius:         6px;
  --radius-md:      8px;
  --radius-lg:      12px;
  --sidebar-w:      230px;
  --topbar-h:       60px;
  --font:           'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono:      'Cascadia Code', 'Consolas', monospace;
  --transition:     0.15s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font); color: var(--text-primary); background: var(--content-bg); line-height: 1.5; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
button { cursor: pointer; font-family: var(--font); }
input, select, textarea { font-family: var(--font); }
ul, ol { list-style: none; }
img { display: block; max-width: 100%; }

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-dark); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ============================================================
   AUTH PAGES (index.html)
   ============================================================ */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #1d4ed8 100%);
}

.auth-box {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 440px;
  padding: 40px;
}

.auth-logo {
  text-align: center;
  margin-bottom: 28px;
}

.auth-logo-icon {
  width: 52px;
  height: 52px;
  background: var(--primary);
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.auth-logo-icon svg { color: #fff; }

.auth-logo h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.auth-logo p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.auth-tabs {
  display: flex;
  border-bottom: 2px solid var(--border);
  margin-bottom: 24px;
}

.auth-tab {
  flex: 1;
  padding: 10px;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color var(--transition), border-color var(--transition);
}

.auth-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.auth-tab:hover:not(.active) { color: var(--text-primary); }

.auth-form { display: none; }
.auth-form.active { display: block; }

.auth-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.pending-box {
  text-align: center;
  padding: 24px;
}

.pending-box .pending-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--warning-bg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.pending-box h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.pending-box p { font-size: 0.85rem; color: var(--text-secondary); }

/* ============================================================
   APP LAYOUT
   ============================================================ */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* --- Sidebar --- */
.sidebar {
  width: var(--sidebar-w);
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  overflow-y: auto;
}

.sidebar-brand {
  padding: 18px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

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

.sidebar-brand-icon {
  width: 36px;
  height: 36px;
  background: var(--primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sidebar-brand-icon svg { color: #fff; }

.sidebar-brand-text h2 {
  font-size: 0.875rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.sidebar-brand-text span {
  font-size: 0.7rem;
  color: var(--sidebar-text);
}

.sidebar-section {
  padding: 16px 0 8px;
}

.sidebar-section-label {
  padding: 0 16px 6px;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #4b5563;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--sidebar-text);
  cursor: pointer;
  border-radius: 0;
  transition: background var(--transition), color var(--transition);
  position: relative;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.nav-item svg { width: 16px; height: 16px; flex-shrink: 0; }

.nav-item:hover {
  background: var(--sidebar-hover);
  color: #e5e7eb;
}

.nav-item.active {
  background: rgba(30, 64, 175, 0.3);
  color: #fff;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--primary-light);
  border-radius: 0 2px 2px 0;
}

.nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
}

.sidebar-footer {
  margin-top: auto;
  padding: 16px;
  border-top: 1px solid rgba(255,255,255,0.07);
}

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

.sidebar-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.sidebar-user-info { flex: 1; min-width: 0; }
.sidebar-user-info .name { font-size: 0.8rem; font-weight: 600; color: #e5e7eb; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user-info .role { font-size: 0.7rem; color: var(--sidebar-text); }

.btn-logout {
  background: none;
  border: none;
  color: var(--sidebar-text);
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  transition: color var(--transition);
}

.btn-logout:hover { color: var(--danger); }

/* --- Main Area --- */
.main-area {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* --- Top Bar --- */
.topbar {
  height: var(--topbar-h);
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
  gap: 16px;
}

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

.topbar-subtitle {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 400;
}

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

.topbar-divider {
  width: 1px;
  height: 24px;
  background: var(--border);
}

/* --- Page Content --- */
.page-content {
  padding: 24px;
  flex: 1;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.page-header-left h2 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
}

.page-header-left p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ============================================================
   COMPONENTS
   ============================================================ */

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1;
}

.btn svg { width: 14px; height: 14px; }

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

.btn-secondary {
  background: var(--card-bg);
  color: var(--text-primary);
  border-color: var(--border-dark);
}
.btn-secondary:hover { background: var(--content-bg); border-color: #9ca3af; }

.btn-success {
  background: var(--success);
  color: #fff;
  border-color: var(--success);
}
.btn-success:hover { background: #15803d; }

.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}
.btn-danger:hover { background: #b91c1c; }

.btn-warning {
  background: var(--warning);
  color: #fff;
  border-color: var(--warning);
}
.btn-warning:hover { background: #b45309; }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--content-bg); color: var(--text-primary); }

.btn-sm { padding: 5px 10px; font-size: 0.75rem; }
.btn-sm svg { width: 12px; height: 12px; }
.btn-lg { padding: 10px 20px; font-size: 0.875rem; }

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* --- Form Controls --- */
.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-label .required { color: var(--danger); margin-left: 2px; }

.form-control {
  width: 100%;
  padding: 8px 12px;
  font-size: 0.85rem;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: var(--card-bg);
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  line-height: 1.5;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-control::placeholder { color: var(--text-muted); }

select.form-control { cursor: pointer; }

textarea.form-control { resize: vertical; min-height: 80px; }

.form-hint { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }
.form-error { font-size: 0.75rem; color: var(--danger); margin-top: 4px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* --- Cards --- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.card-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-header h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-body { padding: 18px; }
.card-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--border);
  background: #fafafa;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* --- Stat Cards --- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

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

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon svg { width: 22px; height: 22px; }
.stat-icon.blue   { background: #eff6ff; color: var(--primary); }
.stat-icon.green  { background: var(--success-bg); color: var(--success); }
.stat-icon.orange { background: var(--orange-bg); color: var(--orange); }
.stat-icon.red    { background: var(--danger-bg); color: var(--danger); }
.stat-icon.yellow { background: var(--warning-bg); color: var(--warning); }
.stat-icon.grey   { background: #f9fafb; color: var(--text-secondary); }

.stat-info { flex: 1; }
.stat-label { font-size: 0.75rem; color: var(--text-secondary); font-weight: 500; }
.stat-value { font-size: 1.5rem; font-weight: 700; color: var(--text-primary); line-height: 1.2; margin-top: 2px; }
.stat-change { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; }
.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* --- Tables --- */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--card-bg);
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

thead {
  background: #f9fafb;
  border-bottom: 1px solid var(--border);
}

thead th {
  padding: 10px 14px;
  text-align: left;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  white-space: nowrap;
}

thead th.right { text-align: right; }
thead th.center { text-align: center; }

tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: #fafafa; }
tbody tr.clickable { cursor: pointer; }
tbody tr.clickable:hover { background: #f0f6ff; }
tbody tr.flagged { background: var(--orange-bg); }
tbody tr.flagged:hover { background: #fed7aa44; }

td {
  padding: 11px 14px;
  color: var(--text-primary);
  vertical-align: middle;
}

td.right { text-align: right; font-variant-numeric: tabular-nums; }
td.center { text-align: center; }
td.muted { color: var(--text-secondary); }
td.mono { font-family: var(--font-mono); font-size: 0.8rem; }

.td-actions { display: flex; gap: 4px; justify-content: flex-end; }

/* --- Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.badge-draft         { background: #f3f4f6; color: #374151; }
.badge-submitted     { background: #eff6ff; color: #1d4ed8; }
.badge-price-changed { background: var(--orange-bg); color: var(--orange); }
.badge-pending       { background: var(--warning-bg); color: var(--warning); }
.badge-approved      { background: var(--success-bg); color: var(--success); }
.badge-rejected      { background: var(--danger-bg); color: var(--danger); }
.badge-active        { background: var(--success-bg); color: var(--success); }
.badge-inactive      { background: #f3f4f6; color: #6b7280; }

/* --- Filters & Toolbar --- */
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.toolbar-search {
  position: relative;
  flex: 1;
  min-width: 200px;
  max-width: 320px;
}

.toolbar-search svg {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  color: var(--text-muted);
  pointer-events: none;
}

.toolbar-search input {
  width: 100%;
  padding: 7px 12px 7px 32px;
  font-size: 0.82rem;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: var(--card-bg);
  color: var(--text-primary);
}

.toolbar-search input:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.toolbar-filter select {
  padding: 7px 10px;
  font-size: 0.8rem;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: var(--card-bg);
  color: var(--text-primary);
  cursor: pointer;
}

.toolbar-spacer { flex: 1; }

/* --- Modals --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  transform: scale(0.95) translateY(-10px);
  transition: transform 0.2s;
}

.modal-overlay.open .modal { transform: scale(1) translateY(0); }

.modal-lg { max-width: 760px; }
.modal-xl { max-width: 980px; }

.modal-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.modal-header h3 { font-size: 0.95rem; font-weight: 600; }

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  transition: color var(--transition), background var(--transition);
}

.modal-close:hover { color: var(--text-primary); background: var(--content-bg); }

.modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-shrink: 0;
  background: #fafafa;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* --- Accordion --- */
.accordion { display: flex; flex-direction: column; gap: 8px; }

.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--card-bg);
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  cursor: pointer;
  background: #f9fafb;
  border-bottom: 1px solid transparent;
  transition: background var(--transition);
  user-select: none;
}

.accordion-header:hover { background: #f3f4f6; }
.accordion-item.open .accordion-header { border-bottom-color: var(--border); background: #eff6ff; }

.accordion-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.accordion-title svg { width: 16px; height: 16px; color: var(--primary); }

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

.accordion-total {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

.accordion-chevron {
  width: 16px; height: 16px;
  color: var(--text-muted);
  transition: transform 0.2s;
}

.accordion-item.open .accordion-chevron { transform: rotate(180deg); }

.accordion-body { display: none; padding: 14px 16px; }
.accordion-item.open .accordion-body { display: block; }

/* --- Inline Editable Table (Costing Sheet) --- */
.costing-table { width: 100%; border-collapse: collapse; }
.costing-table th {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.costing-table th.right { text-align: right; }
.costing-table td { padding: 5px 8px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.costing-table td:last-child { text-align: right; font-variant-numeric: tabular-nums; font-weight: 500; }
.costing-table tr:last-child td { border-bottom: none; }
.costing-table .input-cell { padding: 3px 6px; border: 1px solid var(--border-dark); border-radius: var(--radius-sm); background: var(--card-bg); font-size: 0.82rem; width: 100%; }
.costing-table .input-cell:focus { outline: none; border-color: var(--primary-light); }
.costing-table .price-changed-row td { background: var(--orange-bg); }
.costing-table .price-changed-row td:first-child { border-left: 3px solid var(--orange); padding-left: 5px; }

.costing-add-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--border-dark);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  background: none;
  border-left: none;
  border-right: none;
  border-bottom: none;
}
.costing-add-row:hover { color: var(--primary-dark); }

/* --- Totals / Summary Box --- */
.totals-box {
  background: #f9fafb;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  margin-top: 16px;
}

.totals-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
  font-size: 0.83rem;
}

.totals-row.subtotal { color: var(--text-secondary); }
.totals-row.total { font-weight: 700; font-size: 0.95rem; color: var(--text-primary); padding-top: 8px; border-top: 1px solid var(--border-dark); margin-top: 4px; }
.totals-row.grand { font-weight: 700; font-size: 1.05rem; color: var(--primary); padding-top: 10px; border-top: 2px solid var(--primary); margin-top: 8px; }

/* --- Margin Tiers --- */
.tier-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.tier-table th { font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-secondary); padding: 6px 10px; border-bottom: 1px solid var(--border); text-align: left; }
.tier-table td { padding: 7px 10px; border-bottom: 1px solid var(--border); font-size: 0.82rem; }
.tier-table td.price { font-weight: 600; color: var(--primary); font-variant-numeric: tabular-nums; }
.tier-table tr:last-child td { border-bottom: none; }

/* --- Alerts --- */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  margin-bottom: 14px;
  border: 1px solid transparent;
}

.alert svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 1px; }
.alert-title { font-weight: 600; margin-bottom: 2px; }

.alert-warning { background: var(--warning-bg); color: #92400e; border-color: #fbbf24; }
.alert-danger   { background: var(--danger-bg); color: #991b1b; border-color: #fca5a5; }
.alert-success  { background: var(--success-bg); color: #166534; border-color: #86efac; }
.alert-info     { background: var(--info-bg); color: #075985; border-color: #7dd3fc; }

/* --- Tabs --- */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
  gap: 0;
}

.tab-btn {
  padding: 10px 18px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* --- Timeline / Activity Feed --- */
.activity-feed { display: flex; flex-direction: column; gap: 0; }

.activity-item {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  position: relative;
}

.activity-item:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 36px;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.activity-dot {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.7rem;
  font-weight: 700;
  margin-top: 1px;
}

.activity-dot.blue   { background: #eff6ff; color: var(--primary); }
.activity-dot.green  { background: var(--success-bg); color: var(--success); }
.activity-dot.orange { background: var(--orange-bg); color: var(--orange); }
.activity-dot.red    { background: var(--danger-bg); color: var(--danger); }

.activity-content { flex: 1; }
.activity-text { font-size: 0.82rem; color: var(--text-primary); }
.activity-text strong { font-weight: 600; }
.activity-time { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; }

/* --- Charts --- */
.chart-container { position: relative; }
.chart-container canvas { width: 100% !important; }

/* --- Price History Pill --- */
.price-change-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 500;
  padding: 2px 6px;
  border-radius: 4px;
}

.price-up   { background: var(--danger-bg); color: var(--danger); }
.price-down { background: var(--success-bg); color: var(--success); }

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state svg { width: 48px; height: 48px; margin: 0 auto 14px; opacity: 0.35; }
.empty-state h4 { font-size: 0.9rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
.empty-state p { font-size: 0.8rem; }

/* --- Loading --- */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* --- Divider --- */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 16px 0;
}

/* --- Info Grid (Key-Value Pairs) --- */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.info-item .label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 3px;
}

.info-item .value {
  font-size: 0.85rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* --- Pagination --- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.pagination-btns { display: flex; gap: 4px; }
.page-btn {
  padding: 4px 9px;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  font-size: 0.78rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--transition);
}
.page-btn:hover { background: var(--content-bg); }
.page-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* --- Step Indicator (Quotation workflow) --- */
.workflow-steps {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 20px;
}

.workflow-step {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.workflow-step:last-child { flex: none; }

.step-circle {
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
  border: 2px solid var(--border-dark);
  background: var(--card-bg);
  color: var(--text-muted);
}

.step-circle.done  { background: var(--success); border-color: var(--success); color: #fff; }
.step-circle.active { background: var(--primary); border-color: var(--primary); color: #fff; }

.step-label { font-size: 0.72rem; color: var(--text-secondary); }
.step-label.active { color: var(--primary); font-weight: 600; }
.step-label.done { color: var(--success); }

.step-line {
  flex: 1;
  height: 2px;
  background: var(--border);
  margin: 0 6px;
}

.step-line.done { background: var(--success); }

/* --- Toast Notification --- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: #1f2937;
  color: #f9fafb;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-lg);
  min-width: 260px;
  animation: slideUp 0.2s ease;
}

.toast svg { width: 16px; height: 16px; flex-shrink: 0; }
.toast.success { background: #166534; }
.toast.error   { background: #991b1b; }
.toast.warning { background: #92400e; }

@keyframes slideUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* --- Utilities --- */
.hidden { display: none !important; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.78rem; }
.text-xs { font-size: 0.7rem; }
.font-mono { font-family: var(--font-mono); }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }
.mb-16 { margin-bottom: 16px; }
.gap-8 { gap: 8px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }