/* ==========================================================================
   QuoteFlow - Modern SaaS App Stylesheet
   Mobile-First, Responsive, High Performance Vanilla CSS
   ========================================================================== */

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-dark: #1e40af;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  
  --emerald-50: #ecfdf5;
  --emerald-600: #059669;
  --emerald-700: #047857;
  
  --amber-50: #fffbeb;
  --amber-600: #d97706;
  
  --rose-50: #fff1f2;
  --rose-600: #e11d48;
  --rose-700: #be123c;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--slate-100);
  color: var(--slate-800);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* App Layout Grid */
#app-container {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

/* Sidebar for Desktop */
.sidebar {
  width: 260px;
  background: #ffffff;
  border-right: 1px solid var(--slate-200);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 40;
  transition: transform 0.2s ease;
}

.sidebar-header {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--slate-100);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--slate-900);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.5px;
}

.brand-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--primary), #3b82f6);
  color: #ffffff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
}

.nav-menu {
  padding: 16px 12px;
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-label {
  font-size: 11px;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--slate-400);
  padding: 8px 12px 4px 12px;
  letter-spacing: 0.5px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--slate-600);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.15s ease;
  cursor: pointer;
}

.nav-link:hover {
  background: var(--slate-50);
  color: var(--slate-900);
}

.nav-link.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.nav-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--slate-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--slate-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--slate-700);
  font-size: 13px;
  flex-shrink: 0;
}

.user-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--slate-900);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.user-role {
  font-size: 11px;
  color: var(--slate-500);
  text-transform: capitalize;
}

/* Main Content Area */
.main-wrapper {
  flex: 1;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 100vh;
}

.top-navbar {
  background: #ffffff;
  border-bottom: 1px solid var(--slate-200);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 30;
}

.page-title-box h1 {
  font-size: 20px;
  font-weight: 700;
  color: var(--slate-900);
  letter-spacing: -0.3px;
}

.page-title-box p {
  font-size: 13px;
  color: var(--slate-500);
}

.content-body {
  padding: 24px;
  flex: 1;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
}

/* Mobile Bottom Navigation */
.mobile-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #ffffff;
  border-top: 1px solid var(--slate-200);
  z-index: 50;
  padding: 6px 12px;
  justify-content: space-around;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  color: var(--slate-500);
  text-decoration: none;
  font-size: 10px;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.mobile-nav-item.active {
  color: var(--primary);
}

.mobile-nav-item svg {
  width: 20px;
  height: 20px;
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }
  .main-wrapper {
    margin-left: 0;
    padding-bottom: 64px; /* for bottom nav */
  }
  .mobile-nav {
    display: flex;
  }
  .top-navbar {
    padding: 12px 16px;
  }
  .content-body {
    padding: 16px;
  }
}

/* Cards & Containers */
.card {
  background: #ffffff;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}

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

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--slate-900);
}

.card-subtitle {
  font-size: 12px;
  color: var(--slate-500);
  margin-top: 2px;
}

/* Dashboard Metric Cards */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.metric-card {
  background: #ffffff;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.metric-val {
  font-size: 26px;
  font-weight: 800;
  color: var(--slate-900);
  line-height: 1.2;
}

.metric-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--slate-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 2px;
}

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

.metric-icon.blue { background: var(--primary-light); color: var(--primary); }
.metric-icon.green { background: var(--emerald-50); color: var(--emerald-600); }
.metric-icon.purple { background: #faf5ff; color: #9333ea; }
.metric-icon.amber { background: var(--amber-50); color: var(--amber-600); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  font-size: 13.5px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn svg {
  width: 16px;
  height: 16px;
}

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

.btn-secondary {
  background: #ffffff;
  color: var(--slate-700);
  border-color: var(--slate-300);
}
.btn-secondary:hover {
  background: var(--slate-50);
  border-color: var(--slate-400);
}

.btn-success {
  background: var(--emerald-600);
  color: #ffffff;
}
.btn-success:hover {
  background: var(--emerald-700);
}

.btn-danger {
  background: var(--rose-600);
  color: #ffffff;
}
.btn-danger:hover {
  background: var(--rose-700);
}

.btn-sm {
  padding: 6px 10px;
  font-size: 12px;
}

.btn-icon {
  padding: 7px;
  border-radius: var(--radius-sm);
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--slate-700);
  margin-bottom: 6px;
}

.form-label .required {
  color: var(--rose-600);
}

.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--slate-800);
  background: #ffffff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

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

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

/* Radio / Toggle Group */
.toggle-group {
  display: inline-flex;
  background: var(--slate-100);
  padding: 4px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--slate-200);
}

.toggle-btn {
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--slate-600);
  border-radius: 4px;
  cursor: pointer;
  border: none;
  background: transparent;
  transition: all 0.15s ease;
}

.toggle-btn.active {
  background: #ffffff;
  color: var(--slate-900);
  box-shadow: var(--shadow-sm);
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--slate-200);
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
  font-size: 13.5px;
}

.table th {
  background: var(--slate-50);
  color: var(--slate-600);
  font-weight: 600;
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--slate-200);
  white-space: nowrap;
}

.table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--slate-100);
  color: var(--slate-700);
}

.table tr:hover td {
  background: #fafafa;
}

/* Line items editor table */
.items-table th {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.items-table td {
  padding: 8px 10px;
}

.items-table .form-control {
  padding: 6px 8px;
  font-size: 13px;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 600;
}

.badge-success { background: var(--emerald-50); color: var(--emerald-700); }
.badge-warning { background: var(--amber-50); color: var(--amber-600); }
.badge-danger { background: var(--rose-50); color: var(--rose-700); }
.badge-blue { background: var(--primary-light); color: var(--primary-dark); }
.badge-gray { background: var(--slate-100); color: var(--slate-600); }

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(2px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: fadeIn 0.15s ease-out;
}

.modal {
  background: #ffffff;
  border-radius: var(--radius-md);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  animation: scaleUp 0.15s ease-out;
}

.modal.modal-lg {
  max-width: 800px;
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--slate-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--slate-900);
}

.modal-body {
  padding: 20px;
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--slate-100);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: var(--slate-50);
  border-bottom-left-radius: var(--radius-md);
  border-bottom-right-radius: var(--radius-md);
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--slate-400);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.btn-close:hover {
  color: var(--slate-700);
  background: var(--slate-100);
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 380px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: #ffffff;
  color: var(--slate-800);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13.5px;
  border-left: 4px solid var(--primary);
  animation: slideInRight 0.2s ease-out;
}

.toast.success { border-left-color: var(--emerald-600); }
.toast.error { border-left-color: var(--rose-600); }
.toast.info { border-left-color: var(--primary); }

/* Empty States */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--slate-500);
}

.empty-icon {
  width: 54px;
  height: 54px;
  background: var(--slate-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px auto;
  color: var(--slate-400);
}

.empty-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--slate-800);
  margin-bottom: 4px;
}

.empty-desc {
  font-size: 13px;
  max-width: 360px;
  margin: 0 auto 16px auto;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleUp {
  from { transform: scale(0.96); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

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

/* Utility classes */
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.mt-4 { margin-top: 4px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.text-right { text-align: right; }
.text-muted { color: var(--slate-500); }
.font-bold { font-weight: 700; }

/* Remove visible up/down spinner arrows from Unit Rate & number inputs (Chrome, Safari, Edge, Opera, Firefox) */
.item-price-input,
.item-qty-input,
input[type=number].no-spin {
  -moz-appearance: textfield;
}

.item-price-input::-webkit-outer-spin-button,
.item-price-input::-webkit-inner-spin-button,
.item-qty-input::-webkit-outer-spin-button,
.item-qty-input::-webkit-inner-spin-button,
input[type=number].no-spin::-webkit-outer-spin-button,
input[type=number].no-spin::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.badge-amber {
  background: #fef3c7;
  color: #b45309;
}

.badge-purple {
  background: #f3e8ff;
  color: #7e22ce;
}

.btn-whatsapp {
  background: #25d366;
  color: #ffffff;
}
.btn-whatsapp:hover {
  background: #1eb956;
  color: #ffffff;
}