/* components.css — button, input, table, card, badge, modal, toast, form, pagination */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  font-family: inherit;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  line-height: 1.2;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), opacity var(--transition);
  white-space: nowrap;
  user-select: none;
}
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary { background: var(--color-primary); color: #fff; box-shadow: 0 1px 2px rgba(59, 130, 246, 0.3); }
.btn-primary:hover:not(:disabled) { background: var(--color-primary-hover); box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35); }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border); }
.btn-secondary:hover:not(:disabled) { background: var(--color-surface-2); border-color: var(--color-text-muted); }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-danger:hover:not(:disabled) { filter: brightness(1.08); }
.btn-success { background: var(--color-success); color: #fff; }
.btn-success:hover:not(:disabled) { filter: brightness(1.06); }
.btn-ghost { background: transparent; color: var(--color-text); }
.btn-ghost:hover:not(:disabled) { background: var(--color-surface-2); }
.btn-sm { padding: var(--sp-1) var(--sp-3); font-size: var(--fs-xs); }
.btn-icon { padding: var(--sp-2); width: 36px; height: 36px; }
.btn-block { width: 100%; }

/* ---------- Forms / inputs ---------- */
.form-group { margin-bottom: var(--sp-4); }
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--sp-4);
}
.form-label {
  display: block;
  margin-bottom: var(--sp-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text);
}
.form-label .req { color: var(--color-danger); }
.input,
.select,
.textarea {
  width: 100%;
  padding: var(--sp-2) var(--sp-3);
  font-family: inherit;
  font-size: var(--fs-sm);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.input:focus,
.select:focus,
.textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}
.textarea { resize: vertical; min-height: 80px; }
.form-error { color: var(--color-danger); font-size: var(--fs-xs); margin-top: var(--sp-1); }
.form-hint { color: var(--color-text-muted); font-size: var(--fs-xs); margin-top: var(--sp-1); }

/* checkbox group */
.check-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-1) 0;
  font-size: var(--fs-sm);
  cursor: pointer;
}
.check-item input { width: 16px; height: 16px; cursor: pointer; accent-color: var(--color-primary); }

/* ---------- Card ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--color-border);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-base);
}
.card-body { padding: var(--sp-5); }
.card-footer {
  padding: var(--sp-4) var(--sp-5);
  border-top: 1px solid var(--color-border);
}
/* กริดการ์ดทั่วไป */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--sp-4);
}

/* stat card (dashboard) — icon วงกลม + ตัวเลขใหญ่ */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: var(--sp-4);
}
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  transition: box-shadow var(--transition), transform var(--transition);
}
.stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.stat-card .stat-label {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
}
.stat-card .stat-value {
  font-size: 1.9rem;
  font-weight: var(--fw-bold);
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.stat-card .stat-icon {
  width: 44px; height: 44px; border-radius: var(--radius-full);
  display: grid; place-items: center; font-size: 1.15rem;
  background: var(--color-primary-soft); color: var(--color-primary);
  flex-shrink: 0;
}
/* variant สีของ stat-icon (ใช้เพิ่มได้ในหน้าใหม่ ไม่กระทบของเดิม) */
.stat-card .stat-icon.icon-success { background: var(--color-success-soft); color: var(--color-success); }
.stat-card .stat-icon.icon-warning { background: var(--color-warning-soft); color: var(--color-warning); }
.stat-card .stat-icon.icon-danger  { background: var(--color-danger-soft);  color: var(--color-danger); }
.stat-card .stat-icon.icon-info    { background: var(--color-info-soft);    color: var(--color-info); }
/* ตัวบอกแนวโน้ม (delta) — optional */
.stat-card .stat-change { font-size: var(--fs-xs); font-weight: var(--fw-semibold); }
.stat-card .stat-change.up { color: var(--color-success); }
.stat-card .stat-change.down { color: var(--color-danger); }

/* ---------- Table ---------- */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  /* บังคับ scrollbar แนวนอนให้เห็นเสมอเมื่อตารางกว้างเกิน (กัน overlay scrollbar ของ Win11
     ที่ auto-hide จนผู้ใช้ไม่รู้ว่าเลื่อนดูคอลัมน์ที่เหลือได้ เช่น ตารางสลิปเงินเดือนหลายคอลัมน์) */
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}
.table-wrap::-webkit-scrollbar { height: 12px; width: 12px; }
.table-wrap::-webkit-scrollbar-track { background: var(--color-bg, #f1f5f9); border-radius: 0 0 var(--radius-lg) var(--radius-lg); }
.table-wrap::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 8px; border: 3px solid transparent; background-clip: padding-box; }
.table-wrap::-webkit-scrollbar-thumb:hover { background: var(--color-text-muted); background-clip: padding-box; border: 3px solid transparent; }
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}
.table th,
.table td {
  padding: var(--sp-3) var(--sp-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}
.table th {
  background: var(--color-surface-2);
  font-weight: var(--fw-semibold);
  color: var(--color-text-muted);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  position: sticky;
  top: 0;
}
.table td { color: var(--color-text); }
.table tbody tr { transition: background var(--transition); }
.table tbody tr:hover { background: var(--color-surface-2); }
.table tbody tr:last-child td { border-bottom: none; }
.table .row-actions { display: flex; gap: var(--sp-2); }
.table-empty {
  padding: var(--sp-8);
  text-align: center;
  color: var(--color-text-muted);
}

/* toolbar above table */
.toolbar {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
  flex-wrap: wrap;
}
.toolbar .search-box { flex: 1; min-width: 200px; max-width: 360px; }

/* ---------- Badge / Chip ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 3px var(--sp-3);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  line-height: 1.4;
  border-radius: var(--radius-full);
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  white-space: nowrap;
}
.badge-success { background: var(--color-success-soft); color: var(--color-success); }
.badge-warning { background: var(--color-warning-soft); color: var(--color-warning); }
.badge-danger { background: var(--color-danger-soft); color: var(--color-danger); }
.badge-info { background: var(--color-info-soft); color: var(--color-info); }
.badge-primary { background: var(--color-primary-soft); color: var(--color-primary); }

/* badge แบบมีจุดสถานะนำหน้า (เพิ่ม class .badge-dot) */
.badge-dot::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* chip — pill สำหรับ filter/tag (แยกจาก badge) */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-1) var(--sp-3);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  border-radius: var(--radius-full);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  white-space: nowrap;
  cursor: default;
}
.chip.chip-active { background: var(--color-primary-soft); border-color: var(--color-primary); color: var(--color-primary); }
.chip button, .chip .chip-remove {
  background: none; border: none; cursor: pointer;
  color: inherit; font-size: 1em; line-height: 1; padding: 0;
}

/* ---------- Pagination ---------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
  flex-wrap: wrap;
}
.pagination .page-info { color: var(--color-text-muted); font-size: var(--fs-sm); }
.pagination .page-controls { display: flex; align-items: center; gap: var(--sp-1); }
.pagination .page-btn {
  min-width: 34px;
  height: 34px;
  padding: 0 var(--sp-2);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--fs-sm);
}
.pagination .page-btn:hover:not(:disabled) { background: var(--color-surface-2); }
.pagination .page-btn.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.pagination .page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  z-index: var(--z-modal);
  display: grid;
  place-items: center;
  padding: var(--sp-4);
  animation: fade-in var(--transition);
}
.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  animation: modal-in var(--transition);
}
.modal.modal-lg { max-width: 760px; }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-2);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.modal-header h3 { font-size: var(--fs-lg); font-weight: var(--fw-semibold); }
.modal-close {
  background: transparent; border: none; cursor: pointer;
  font-size: 1.4rem; line-height: 1; color: var(--color-text-muted);
  padding: var(--sp-1); border-radius: var(--radius-sm);
}
.modal-close:hover { background: var(--color-surface-2); color: var(--color-text); }
.modal-body { padding: var(--sp-5); overflow-y: auto; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  border-top: 1px solid var(--color-border);
}

/* ---------- Toast ---------- */
.toast-container {
  position: fixed;
  top: var(--sp-5);
  right: var(--sp-5);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  max-width: 360px;
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-text-muted);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: var(--fs-sm);
  animation: toast-in var(--transition);
}
.toast.leaving { animation: toast-out var(--transition) forwards; }
.toast-success { border-left-color: var(--color-success); }
.toast-error { border-left-color: var(--color-danger); }
.toast-warning { border-left-color: var(--color-warning); }
.toast-info { border-left-color: var(--color-info); }
.toast .toast-icon { flex-shrink: 0; font-weight: var(--fw-bold); }
.toast .toast-msg { flex: 1; }

/* ---------- Loading ---------- */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  z-index: var(--z-toast);
  display: grid;
  place-items: center;
}
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.spinner-inline {
  width: 18px; height: 18px; border-width: 2px;
  display: inline-block; vertical-align: middle;
}

/* skeleton block */
.skeleton {
  background: linear-gradient(90deg, var(--color-surface-2) 25%, var(--color-border) 37%, var(--color-surface-2) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.4s ease infinite;
  border-radius: var(--radius-sm);
  height: 1em;
}

/* ---------- Sidebar section header (บนพื้นเข้ม) ---------- */
.sidebar-nav .nav-section {
  padding: var(--sp-4) var(--sp-3) var(--sp-1);
  font-size: 10px;
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--sidebar-section);
}

/* ---------- Sortable table header ---------- */
.table th.th-sortable {
  cursor: pointer;
  user-select: none;
}
.table th.th-sortable:hover { color: var(--color-text); }
.table th .sort-ind { font-size: 0.7em; margin-left: 2px; }

/* ---------- Tabs ---------- */
.tabs {
  display: flex;
  gap: var(--sp-1);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--sp-4);
  flex-wrap: wrap;
}
.tab-btn {
  padding: var(--sp-3) var(--sp-4);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--color-text-muted);
  font-family: inherit;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.tab-btn:hover { color: var(--color-text); }
.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ---------- TreeView (org tree) ---------- */
.treeview { font-size: var(--fs-sm); }
.treeview ul { list-style: none; margin: 0; padding: 0; }
.treeview .tree-children { padding-left: var(--sp-5); border-left: 1px dashed var(--color-border); margin-left: 10px; }
.treeview .tree-node.collapsed > .tree-children { display: none; }
.treeview .tree-row {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-1) 0;
}
.treeview .tree-toggle {
  width: 20px; height: 20px; flex-shrink: 0;
  background: transparent; border: none; cursor: pointer;
  color: var(--color-text-muted); font-size: 0.75rem;
  border-radius: var(--radius-sm);
}
.treeview .tree-toggle:hover:not(.tree-toggle-empty) { background: var(--color-surface-2); }
.treeview .tree-toggle-empty { cursor: default; }
.treeview .tree-label {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: 2px var(--sp-2); border-radius: var(--radius-sm);
}
.treeview .tree-label:hover { background: var(--color-surface-2); }
.treeview .tree-type {
  font-size: var(--fs-xs);
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: 1px var(--sp-2);
  border-radius: var(--radius-full);
}
.treeview .tree-name { color: var(--color-text); }

/* datatable pager wrapper (เว้นบนเล็กน้อยเมื่อมี pagination) */
.datatable-pager:empty { margin: 0; }

/* ---------- Avatar (วงกลม initials) ---------- */
.avatar {
  display: inline-grid;
  place-items: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  flex-shrink: 0;
  overflow: hidden;
  user-select: none;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-sm { width: 30px; height: 30px; font-size: var(--fs-xs); }
.avatar-lg { width: 56px; height: 56px; font-size: var(--fs-lg); }
.avatar-xl { width: 80px; height: 80px; font-size: var(--fs-2xl); }
/* จานสีสลับ (ใช้เพิ่มได้เพื่อไม่ให้ทุก avatar สีเดียว) */
.avatar.avatar-c1 { background: #3b82f6; }
.avatar.avatar-c2 { background: #16a34a; }
.avatar.avatar-c3 { background: #d97706; }
.avatar.avatar-c4 { background: #9333ea; }
.avatar.avatar-c5 { background: #0891b2; }
.avatar.avatar-c6 { background: #db2777; }
/* กลุ่ม avatar ซ้อนกัน */
.avatar-group { display: inline-flex; }
.avatar-group .avatar { border: 2px solid var(--color-surface); margin-left: -10px; }
.avatar-group .avatar:first-child { margin-left: 0; }

/* ---------- Timeline ---------- */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.timeline-item {
  position: relative;
  padding: 0 0 var(--sp-5) var(--sp-6);
}
.timeline-item::before {
  /* เส้นแนวตั้ง */
  content: '';
  position: absolute;
  left: 9px; top: 4px; bottom: 0;
  width: 2px;
  background: var(--color-border);
}
.timeline-item:last-child::before { display: none; }
.timeline-item .timeline-dot {
  position: absolute;
  left: 3px; top: 3px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-surface);
  box-shadow: 0 0 0 1px var(--color-border);
  z-index: 1;
}
.timeline-item .timeline-dot.dot-success { background: var(--color-success); }
.timeline-item .timeline-dot.dot-warning { background: var(--color-warning); }
.timeline-item .timeline-dot.dot-danger  { background: var(--color-danger); }
.timeline-item .timeline-dot.dot-muted   { background: var(--color-text-muted); }
.timeline-item .timeline-time {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-bottom: 2px;
}
.timeline-item .timeline-title { font-weight: var(--fw-semibold); font-size: var(--fs-sm); }
.timeline-item .timeline-desc { font-size: var(--fs-sm); color: var(--color-text-muted); margin-top: 2px; }

/* ---------- Empty state ---------- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3);
  padding: var(--sp-8) var(--sp-5);
  text-align: center;
  color: var(--color-text-muted);
}
.empty-state .empty-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 1.8rem;
  background: var(--color-surface-2);
  color: var(--color-text-muted);
}
.empty-state .empty-title { font-size: var(--fs-lg); font-weight: var(--fw-semibold); color: var(--color-text); }
.empty-state .empty-desc { font-size: var(--fs-sm); max-width: 380px; }

/* ---------- Chart container (ใช้กับ charts.js) ---------- */
.chart-box {
  width: 100%;
  min-height: 260px;
}
.chart-box.chart-sm { min-height: 180px; }
.chart-box.chart-lg { min-height: 360px; }

/* ---------- FontAwesome icon sizing ในบริบท UI ---------- */
.nav-icon .fa-solid, .nav-icon .fa-regular, .nav-icon i { font-size: 1rem; }
.stat-icon .fa-solid, .stat-icon i { font-size: 1.15rem; }
.btn i { font-size: 0.95em; }

/* ---------- Divider ---------- */
.divider { height: 1px; background: var(--color-border); border: none; margin: var(--sp-4) 0; }

/* ---------- Header user menu (คลิก → โปรไฟล์) ---------- */
.header-user { display: flex; align-items: center; gap: 8px; background: transparent; border: 1px solid transparent; border-radius: 10px; padding: 4px 10px 4px 4px; cursor: pointer; color: var(--color-text, #0f172a); transition: background .15s, border-color .15s; }
.header-user:hover { background: var(--color-primary-soft, rgba(59,130,246,.1)); border-color: var(--color-border, #e2e8f0); }
.header-user-meta { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.2; }
.header-user .user-name { font-weight: 600; font-size: .9rem; }
.header-user .user-sub { font-size: .72rem; color: var(--color-text-muted, #64748b); }
.header-user-caret { font-size: .7rem; color: var(--color-text-muted, #94a3b8); }
@media (max-width: 640px) { .header-user-meta, .header-user-caret { display: none; } }

/* ---------- Animations ---------- */
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes modal-in { from { opacity: 0; transform: translateY(12px) scale(0.98); } to { opacity: 1; transform: none; } }
@keyframes toast-in { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }
@keyframes toast-out { to { opacity: 0; transform: translateX(20px); } }
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }