/* ============================================================
   BizDocs AI — Components
   ============================================================ */

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-md);
  font-size: 13.5px;
  font-weight: 600;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.4;
}
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-primary {
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37,99,235,.3);
}
.btn-primary:hover:not(:disabled) {
  box-shadow: 0 4px 12px rgba(37,99,235,.4);
  filter: brightness(1.06);
}

.btn-secondary {
  background: var(--clr-bg);
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
}
.btn-secondary:hover:not(:disabled) { background: var(--clr-border); }

.btn-danger {
  background: #FEF2F2;
  color: var(--clr-danger);
  border: 1px solid #FECACA;
}
.btn-danger:hover:not(:disabled) { background: #FEE2E2; }

.btn-ghost {
  background: none;
  color: var(--clr-text-muted);
  border: none;
  padding: var(--sp-2);
}
.btn-ghost:hover:not(:disabled) { background: var(--clr-bg); color: var(--clr-text); }

.btn-sm { padding: 5px var(--sp-3); font-size: 12.5px; }
.btn-lg { padding: var(--sp-3) var(--sp-6); font-size: 15px; }
.btn-icon { padding: var(--sp-2); }

/* ---- Cards ---- */
.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--sp-5);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-4);
}

.card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--clr-text);
}

.card-subtitle {
  font-size: 12px;
  color: var(--clr-text-muted);
  margin-top: 2px;
}

/* Stat cards (dashboard) */
.stat-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}
.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-card__icon {
  width: 44px; height: 44px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.stat-card__icon svg { width: 22px; height: 22px; }

.stat-card__value {
  font-size: 28px;
  font-weight: 800;
  color: var(--clr-text);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-card__label {
  font-size: 12.5px;
  color: var(--clr-text-muted);
  font-weight: 500;
}

.stat-card__change {
  font-size: 11.5px;
  font-weight: 600;
  margin-top: var(--sp-1);
}
.stat-card__change.up   { color: var(--clr-success); }
.stat-card__change.down { color: var(--clr-danger); }

/* Stat icon colour variants */
.icon-blue   { background: #EFF6FF; color: var(--clr-primary); }
.icon-purple { background: #F5F3FF; color: var(--clr-secondary); }
.icon-green  { background: #ECFDF5; color: var(--clr-success); }
.icon-amber  { background: #FFFBEB; color: var(--clr-warning); }
.icon-cyan   { background: #ECFEFF; color: var(--clr-cyan); }
.icon-red    { background: #FEF2F2; color: var(--clr-danger); }

/* ---- Badges ---- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: var(--r-full);
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
}
.badge-paid     { background: #ECFDF5; color: #059669; }
.badge-pending  { background: #FFFBEB; color: #B45309; }
.badge-overdue  { background: #FEF2F2; color: #DC2626; }
.badge-draft    { background: #F8FAFC; color: #64748B; border: 1px solid var(--clr-border); }
.badge-quotation{ background: #EFF6FF; color: var(--clr-primary); }
.badge-invoice  { background: #F5F3FF; color: var(--clr-secondary); }
.badge-letter   { background: #ECFEFF; color: #0E7490; }
.badge-agreement{ background: #FFF7ED; color: #C2410C; }
.badge-report   { background: #F0FDF4; color: #15803D; }
.badge-custom   { background: #F8FAFC; color: var(--clr-text-muted); }

/* ---- Form fields ---- */
.form-group { margin-bottom: var(--sp-4); }

.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: var(--sp-2);
}
.form-label.required::after {
  content: ' *';
  color: var(--clr-danger);
}

.form-control {
  width: 100%;
  padding: var(--sp-2) var(--sp-3);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
  font-size: 13.5px;
  color: var(--clr-text);
  background: var(--clr-surface);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}
.form-control::placeholder { color: var(--clr-text-muted); opacity: .8; }
.form-control.error { border-color: var(--clr-danger); }
.form-control:disabled { background: var(--clr-bg); cursor: not-allowed; }

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

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2364748B'%3E%3Cpath fill-rule='evenodd' d='M5.23 7.21a.75.75 0 011.06.02L10 11.17l3.71-3.94a.75.75 0 111.08 1.04l-4.25 4.5a.75.75 0 01-1.08 0l-4.25-4.5a.75.75 0 01.02-1.06z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 16px;
  padding-right: 34px;
}

.form-hint {
  font-size: 11.5px;
  color: var(--clr-text-muted);
  margin-top: var(--sp-1);
}

.form-error {
  font-size: 11.5px;
  color: var(--clr-danger);
  margin-top: var(--sp-1);
  display: none;
}
.form-error.show { display: block; }

.form-row {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

/* ---- Tables ---- */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--r-lg);
  border: 1px solid var(--clr-border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

thead th {
  background: var(--clr-bg);
  color: var(--clr-text-muted);
  font-weight: 600;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .5px;
  padding: var(--sp-3) var(--sp-4);
  text-align: left;
  border-bottom: 1px solid var(--clr-border);
  white-space: nowrap;
}

tbody td {
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--clr-border);
  color: var(--clr-text);
  vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--clr-bg); }

.td-actions {
  display: flex;
  gap: var(--sp-1);
  justify-content: flex-end;
}

.td-muted { color: var(--clr-text-muted); font-size: 12.5px; }

/* ---- Modal ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11,22,63,.45);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  padding: var(--sp-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--clr-surface);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(12px);
  transition: transform var(--transition);
}
.modal-overlay.open .modal { transform: translateY(0); }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5) var(--sp-6);
  border-bottom: 1px solid var(--clr-border);
}

.modal-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--clr-text);
}

.modal-body { padding: var(--sp-5) var(--sp-6); }

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-6) var(--sp-5);
  border-top: 1px solid var(--clr-border);
}

/* ---- Toast notifications ---- */
#toast-container {
  position: fixed;
  bottom: var(--sp-6);
  right: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  z-index: 999;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--r-lg);
  background: var(--clr-text);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  min-width: 260px;
  max-width: 380px;
  box-shadow: var(--shadow-lg);
  pointer-events: all;
  animation: toast-in 200ms ease forwards;
}
.toast.success { background: #064E3B; }
.toast.error   { background: #7F1D1D; }
.toast.warning { background: #78350F; }

@keyframes toast-in {
  from { transform: translateX(40px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* ---- Search / filter bar ---- */
.toolbar {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
  flex-wrap: wrap;
}

.toolbar__search {
  position: relative;
  flex: 1;
  min-width: 200px;
}
.toolbar__search input {
  width: 100%;
  padding: var(--sp-2) var(--sp-2) var(--sp-2) var(--sp-8);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-full);
  font-size: 13px;
  background: var(--clr-surface);
  outline: none;
}
.toolbar__search input:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}
.toolbar__search-icon {
  position: absolute;
  left: 10px;
  top: 50%; transform: translateY(-50%);
  width: 14px; height: 14px;
  color: var(--clr-text-muted);
  pointer-events: none;
}

/* ---- Empty state ---- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--sp-12) var(--sp-4);
  text-align: center;
  color: var(--clr-text-muted);
}
.empty-state svg {
  width: 56px; height: 56px;
  opacity: .35;
  margin-bottom: var(--sp-4);
}
.empty-state h3 { font-size: 15px; font-weight: 600; color: var(--clr-text); margin-bottom: 6px; }
.empty-state p  { font-size: 13px; }

/* ---- Grid helpers ---- */
.grid-4 {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: repeat(4, 1fr);
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 1200px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* ---- Quick-action card ---- */
.quick-action {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-4);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  cursor: pointer;
  transition: all var(--transition);
  text-align: left;
}
.quick-action:hover {
  border-color: var(--clr-primary);
  box-shadow: var(--shadow-card);
  transform: translateY(-1px);
}
.quick-action__icon {
  width: 40px; height: 40px;
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
}
.quick-action__icon svg { width: 20px; height: 20px; }
.quick-action__title { font-size: 13.5px; font-weight: 700; color: var(--clr-text); }
.quick-action__sub   { font-size: 12px; color: var(--clr-text-muted); }

/* ---- Dividers ---- */
.divider {
  border: none;
  border-top: 1px solid var(--clr-border);
  margin: var(--sp-5) 0;
}

/* ============================================================
   Quotation / Invoice form layout
   ============================================================ */
.quot-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: var(--sp-5);
  align-items: start;
}

.quot-form-col  { min-width: 0; }

.quot-preview-sticky {
  position: sticky;
  top: calc(var(--header-h) + var(--sp-4));
}

.quot-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-3);
}

.quot-preview-wrap {
  background: #e2e8f0;
  border-radius: var(--r-lg);
  padding: 12px;
  max-height: calc(100vh - 180px);
  overflow-y: auto;
  box-shadow: var(--shadow-md);
}

/* Item rows */
.item-row { margin-bottom: var(--sp-3); }
.item-row__main {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-end;
  flex-wrap: wrap;
}
.item-row__main .form-group { margin-bottom: 0; }

@media (max-width: 1200px) {
  .quot-layout { grid-template-columns: 1fr; }
  .quot-preview-sticky { position: static; }
  .quot-preview-wrap { max-height: 600px; }
}

/* ---- Invoice filter tabs ---- */
.inv-tabs {
  display: flex;
  gap: var(--sp-2);
  border-bottom: 2px solid var(--clr-border);
  margin-bottom: 0;
}

.inv-tab {
  padding: var(--sp-2) var(--sp-4);
  border: none;
  background: none;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--clr-text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color var(--transition), border-color var(--transition);
}

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

/* ============================================================
   Generator page
   ============================================================ */
.gen-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: var(--sp-5);
  align-items: start;
}

.gen-left  { min-width: 0; }
.gen-right { min-width: 0; }

/* Document type grid */
.gen-type-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
}

.gen-type-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-4) var(--sp-3);
  border: 2px solid var(--clr-border);
  border-radius: var(--r-lg);
  background: var(--clr-surface);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}
.gen-type-btn:hover {
  border-color: var(--clr-primary);
  background: #EFF6FF;
}
.gen-type-btn.active {
  border-color: var(--clr-primary);
  background: #EFF6FF;
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}
.gen-type-icon {
  width: 40px; height: 40px;
  border-radius: var(--r-md);
  background: var(--clr-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-primary);
}
.gen-type-btn.active .gen-type-icon {
  background: var(--grad-primary);
  color: white;
}
.gen-type-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--clr-text);
}

/* Example prompt chips */
.example-chip {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-full);
  font-size: 12px;
  color: var(--clr-text-muted);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.example-chip:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
  background: #EFF6FF;
}

@media (max-width: 1200px) {
  .gen-layout { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .gen-type-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   Phase 8 — Final polish
   ============================================================ */

/* ---- Page loading fade-in ---- */
.page {
  animation: pageFadeIn 180ms ease forwards;
}
@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0);   }
}

/* ---- Focus ring for accessibility ---- */
.btn:focus-visible,
.form-control:focus-visible,
.sidebar__link:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 2px;
}

/* ---- Scrollbar styling (Chrome/Edge) ---- */
::-webkit-scrollbar       { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb { background: var(--clr-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--clr-text-muted); }

/* ---- Card hover lift (dashboard) ---- */
.stat-card {
  transition: transform 180ms ease, box-shadow 180ms ease;
}
.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* ---- Table row highlight ---- */
tbody tr {
  transition: background var(--transition);
}

/* ---- Badge pulse for overdue ---- */
.badge-overdue {
  animation: overdueGlow 2s ease-in-out infinite;
}
@keyframes overdueGlow {
  0%, 100% { box-shadow: none; }
  50%       { box-shadow: 0 0 6px rgba(239,68,68,.4); }
}

/* ---- Sidebar active indicator ---- */
.sidebar__link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: white;
  border-radius: 0 3px 3px 0;
}
.sidebar__link {
  position: relative;
}

/* ---- Print button highlight ---- */
.btn-primary:active {
  transform: scale(0.97);
}

/* ---- Form control smooth border ---- */
.form-control {
  transition: border-color 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

/* ---- Responsive table scroll hint ---- */
.table-wrap {
  position: relative;
}

/* ---- Quick action ripple ---- */
.quick-action:active {
  transform: scale(0.98);
}

/* ---- Toast slide animation ---- */
.toast {
  animation: toastSlide 220ms cubic-bezier(.22,1,.36,1) forwards;
}
@keyframes toastSlide {
  from { transform: translateX(60px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* ---- Modal animation ---- */
.modal {
  animation: modalPop 200ms cubic-bezier(.22,1,.36,1) forwards;
}
@keyframes modalPop {
  from { transform: translateY(16px) scale(0.97); opacity: 0; }
  to   { transform: translateY(0)    scale(1);    opacity: 1; }
}

/* ---- Responsive fixes ---- */
@media (max-width: 768px) {
  .page { padding: var(--sp-4); }
  .page__header { flex-direction: column; align-items: flex-start; }
  .toolbar { flex-direction: column; }
  .toolbar__search { width: 100%; }
  .form-row { grid-template-columns: 1fr; }
  .item-row__main { flex-direction: column; }
  .item-row__main .form-group { width: 100% !important; }
}

@media (max-width: 480px) {
  .header__title  { font-size: 15px; }
  .stat-card__value { font-size: 22px; }
  .btn-lg { padding: var(--sp-2) var(--sp-4); font-size: 14px; }
}

/* ---- Print: hide UI chrome ---- */
@media print {
  .sidebar, .header, .toolbar, .page__header,
  .btn, .td-actions, #toast-container,
  .modal-overlay, .quot-preview-header,
  .gen-left, .inv-tabs { display: none !important; }

  .main { margin-left: 0 !important; }
  .page { padding: 0 !important; }

  .quot-preview-wrap {
    max-height: none !important;
    overflow: visible !important;
    background: white !important;
    padding: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
  }

  * { -webkit-print-color-adjust: exact !important; print-color-adjust: exact !important; }
}