/* ================================================================
   VietCheckMed — Professional UI
   Design system + component overrides
================================================================ */

/* ── 1. Design Tokens ──────────────────────────────────────── */
:root {
  --sidebar-w:        240px;
  --header-h:         60px;

  --clr-primary:      #0d6efd;
  --clr-primary-dk:   #0b5ed7;
  --clr-primary-lt:   #eff6ff;

  --clr-success:      #10b981;
  --clr-success-lt:   #ecfdf5;
  --clr-warning:      #f59e0b;
  --clr-warning-lt:   #fffbeb;
  --clr-danger:       #ef4444;
  --clr-danger-lt:    #fef2f2;
  --clr-info:         #3b82f6;
  --clr-info-lt:      #eff6ff;

  --clr-sidebar:      #ffffff;
  --clr-sidebar-hov:  rgba(0,0,0,.05);
  --clr-sidebar-act:  #0d6efd;
  --clr-sidebar-txt:  #64748b;

  --clr-bg:           #f1f5f9;
  --clr-surface:      #ffffff;
  --clr-border:       #e2e8f0;
  --clr-text:         #1e293b;
  --clr-muted:        #64748b;

  --sh-sm:   0 1px 2px rgba(0,0,0,.05);
  --sh:      0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
  --sh-md:   0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.05);
  --sh-lg:   0 10px 15px rgba(0,0,0,.08), 0 4px 6px rgba(0,0,0,.05);

  --r-sm:    6px;
  --r:       8px;
  --r-lg:    12px;

  --ease:    all .2s ease;
}

/* ── 2. Reset & Base ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--clr-text);
  background: var(--clr-bg);
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

h1,h2,h3,h4,h5,h6 { font-weight: 600; color: var(--clr-text); line-height: 1.3; }
a { color: var(--clr-primary); text-decoration: none; }
a:hover { color: var(--clr-primary-dk); }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ── 3. App Layout ─────────────────────────────────────────── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ── 4. Sidebar ────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--clr-sidebar);
  border-right: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 200;
  transition: width .25s ease;
  overflow: hidden;
}
.sidebar.collapsed { width: 60px; }

/* Brand */
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  height: var(--header-h);
  border-bottom: 1px solid var(--clr-border);
  text-decoration: none;
  flex-shrink: 0;
}
.brand-icon {
  width: 34px; height: 34px;
  background: var(--clr-primary);
  border-radius: var(--r);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 15px;
  flex-shrink: 0;
}
.brand-text { overflow: hidden; white-space: nowrap; }
.brand-name  { display: block; font-size: 14px; font-weight: 700; color: var(--clr-text); letter-spacing: -.02em; }
.brand-tagline { display: block; font-size: 10.5px; color: var(--clr-sidebar-txt); margin-top: 1px; }

/* Nav */
.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  overflow-y: auto; overflow-x: hidden;
  display: flex; flex-direction: column; gap: 2px;
}
.nav-section-label {
  font-size: 10px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .08em;
  color: #475569;
  padding: 10px 10px 4px;
  white-space: nowrap; overflow: hidden;
}
.sidebar-nav .nav-link {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px;
  border-radius: var(--r-sm);
  color: var(--clr-sidebar-txt);
  font-size: 13.5px; font-weight: 500;
  transition: var(--ease);
  white-space: nowrap;
}
.sidebar-nav .nav-link:hover  { background: var(--clr-sidebar-hov); color: var(--clr-text); }
.sidebar-nav .nav-link.active { background: var(--clr-sidebar-act); color: #fff; }
.nav-icon { width: 18px; text-align: center; flex-shrink: 0; font-size: 13px; }

/* Footer */
.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--clr-border);
  font-size: 11px; color: #475569;
  display: flex; align-items: center; gap: 7px;
  white-space: nowrap; overflow: hidden;
}

/* Collapsed state */
.sidebar.collapsed .brand-text,
.sidebar.collapsed .nav-section-label,
.sidebar.collapsed .nav-link span,
.sidebar.collapsed .sidebar-footer span { display: none; }
.sidebar.collapsed .nav-link    { justify-content: center; padding: 10px; }
.sidebar.collapsed .sidebar-brand { justify-content: center; padding: 0 12px; }
.sidebar.collapsed .sidebar-footer { justify-content: center; }

/* ── 5. Main Wrapper ───────────────────────────────────────── */
.main-wrapper {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex; flex-direction: column;
  min-height: 100vh;
  transition: margin-left .25s ease;
}
.main-wrapper.expanded { margin-left: 60px; }

/* ── 6. Top Header ─────────────────────────────────────────── */
.top-header {
  height: var(--header-h);
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  display: flex; align-items: center;
  padding: 0 24px; gap: 14px;
  position: sticky; top: 0; z-index: 100;
  box-shadow: var(--sh-sm);
}
.sidebar-toggle {
  width: 32px; height: 32px;
  border: none; background: transparent;
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--clr-muted); cursor: pointer;
  transition: var(--ease); padding: 0; flex-shrink: 0;
}
.sidebar-toggle:hover { background: var(--clr-bg); color: var(--clr-text); }
.header-title {
  font-size: 15px; font-weight: 600;
  color: var(--clr-text); white-space: nowrap;
}
.header-status {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--clr-muted);
  background: var(--clr-bg);
  padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--clr-border);
}
.status-dot {
  width: 7px; height: 7px;
  background: var(--clr-success);
  border-radius: 50%;
  display: inline-block;
}

/* ── 7. Content Area ───────────────────────────────────────── */
.content-area { flex: 1; padding: 28px 24px; }
.content-area > .container { max-width: 1400px; }

/* ── 8. Footer ─────────────────────────────────────────────── */
.app-footer {
  padding: 14px 24px;
  border-top: 1px solid var(--clr-border);
  background: var(--clr-surface);
  font-size: 12px; color: var(--clr-muted);
  display: flex; align-items: center; gap: 8px;
}
.footer-sep { color: var(--clr-border); }

/* ── 9. Cards ──────────────────────────────────────────────── */
.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-sm);
}
.card-header {
  padding: 14px 20px;
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  font-weight: 600; font-size: 14px;
  border-radius: var(--r-lg) var(--r-lg) 0 0 !important;
}
.card-header .badge { font-size: 11px; }
.card-body   { padding: 20px; }
.card-footer {
  padding: 13px 20px;
  background: #f8fafc;
  border-top: 1px solid var(--clr-border);
  border-radius: 0 0 var(--r-lg) var(--r-lg) !important;
}

/* ── 10. Buttons ───────────────────────────────────────────── */
.btn {
  font-size: 13px; font-weight: 500;
  padding: 7px 14px;
  border-radius: var(--r-sm);
  display: inline-flex; align-items: center; gap: 6px;
  transition: var(--ease); line-height: 1.4;
}
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-lg { padding: 10px 20px; font-size: 14px; }

.btn-primary   { background: var(--clr-primary); border-color: var(--clr-primary); color: #fff; }
.btn-primary:hover, .btn-primary:focus {
  background: var(--clr-primary-dk); border-color: var(--clr-primary-dk); color: #fff;
  box-shadow: 0 0 0 3px rgba(13,110,253,.2);
}
.btn-success   { background: var(--clr-success); border-color: var(--clr-success); color: #fff; }
.btn-success:hover { background: #059669; border-color: #059669; color: #fff; }
.btn-warning   { background: var(--clr-warning); border-color: var(--clr-warning); color: #fff; }
.btn-warning:hover { background: #d97706; border-color: #d97706; color: #fff; }
.btn-danger    { background: var(--clr-danger); border-color: var(--clr-danger); color: #fff; }
.btn-danger:hover { background: #dc2626; border-color: #dc2626; color: #fff; }
.btn-secondary { background: #64748b; border-color: #64748b; color: #fff; }
.btn-secondary:hover { background: #475569; border-color: #475569; color: #fff; }
.btn-info      { background: var(--clr-info); border-color: var(--clr-info); color: #fff; }
.btn-info:hover { background: #2563eb; border-color: #2563eb; color: #fff; }

.btn-outline-primary   { background: transparent; border-color: var(--clr-primary); color: var(--clr-primary); }
.btn-outline-primary:hover { background: var(--clr-primary); color: #fff; }
.btn-outline-secondary { background: transparent; border-color: var(--clr-border); color: var(--clr-muted); }
.btn-outline-secondary:hover { background: var(--clr-bg); color: var(--clr-text); border-color: #cbd5e1; }
.btn-outline-success   { background: transparent; border-color: var(--clr-success); color: var(--clr-success); }
.btn-outline-success:hover { background: var(--clr-success); color: #fff; }
.btn-outline-warning   { background: transparent; border-color: var(--clr-warning); color: var(--clr-warning); }
.btn-outline-warning:hover { background: var(--clr-warning); color: #fff; }
.btn-outline-danger    { background: transparent; border-color: var(--clr-danger); color: var(--clr-danger); }
.btn-outline-danger:hover { background: var(--clr-danger); color: #fff; }
.btn-outline-info      { background: transparent; border-color: var(--clr-info); color: var(--clr-info); }
.btn-outline-info:hover { background: var(--clr-info); color: #fff; }

/* ── 11. Tables ────────────────────────────────────────────── */
.table { font-size: 13px; color: var(--clr-text); margin-bottom: 0; }
.table thead th {
  background: #f8fafc;
  color: var(--clr-muted);
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .06em;
  padding: 10px 14px;
  border-bottom: 2px solid var(--clr-border);
  white-space: nowrap;
}
.table-dark thead th {
  background: var(--clr-text); color: #e2e8f0;
  border-bottom-color: #334155;
}
.table tbody td {
  padding: 12px 14px;
  vertical-align: middle;
  border-bottom: 1px solid #f1f5f9;
}
.table tbody tr:last-child td { border-bottom: none; }
.table-hover tbody tr:hover td { background: #f8fafc; }
.table-striped > tbody > tr:nth-of-type(even) > td { background: #fafbfc; }
.table-striped > tbody > tr:nth-of-type(odd) > td  { background: transparent; }

/* ── 12. Badges ────────────────────────────────────────────── */
.badge {
  font-size: 11px; font-weight: 600;
  padding: 3px 8px; border-radius: 999px;
  display: inline-flex; align-items: center; gap: 4px;
  letter-spacing: .01em;
}
.bg-primary   { background: var(--clr-primary)  !important; }
.bg-success   { background: var(--clr-success)  !important; }
.bg-warning   { background: var(--clr-warning)  !important; }
.bg-danger    { background: var(--clr-danger)   !important; }
.bg-info      { background: var(--clr-info)     !important; }
.bg-secondary { background: #64748b !important; }

/* Semantic status badges */
.badge-compliant    { background: var(--clr-success-lt); color: #065f46; border: 1px solid #a7f3d0; }
.badge-noncompliant { background: var(--clr-danger-lt);  color: #991b1b; border: 1px solid #fecaca; }
.badge-healthcare   { background: #eff6ff; color: #0b5ed7; border: 1px solid #bfdbfe; }
.badge-beauty       { background: #fff7ed; color: #9a3412; border: 1px solid #fed7aa; }

/* ── 13. Alerts ────────────────────────────────────────────── */
.alert {
  border-radius: var(--r); padding: 12px 16px;
  font-size: 13.5px; display: flex; align-items: flex-start; gap: 10px;
}
.alert-danger  { background: var(--clr-danger-lt);  border-color: #fca5a5; color: #991b1b; }
.alert-success { background: var(--clr-success-lt); border-color: #6ee7b7; color: #065f46; }
.alert-warning { background: var(--clr-warning-lt); border-color: #fcd34d; color: #92400e; }
.alert-info    { background: var(--clr-info-lt);    border-color: #93c5fd; color: #0b5ed7; }

/* ── 14. Forms ─────────────────────────────────────────────── */
.form-control, .form-select {
  font-size: 13.5px;
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  padding: 8px 12px;
  color: var(--clr-text);
  background: var(--clr-surface);
  transition: var(--ease);
}
.form-control:focus, .form-select:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(13,110,253,.12);
  outline: none;
}
.form-label { font-size: 13px; font-weight: 500; margin-bottom: 6px; }
textarea.form-control { font-family: 'SF Mono', 'Fira Code', monospace; font-size: 12.5px; }
.input-group-text {
  border: 1px solid var(--clr-border);
  background: #f8fafc; color: var(--clr-muted);
  font-size: 13px; padding: 8px 12px;
}

/* ── 15. Modals ────────────────────────────────────────────── */
.modal-content {
  border: none; border-radius: var(--r-lg);
  box-shadow: var(--sh-lg); overflow: hidden;
}
.modal-header {
  padding: 15px 20px;
  border-bottom: 1px solid var(--clr-border);
  background: var(--clr-surface);
}
.modal-title { font-size: 15px; font-weight: 600; }
.modal-body  { padding: 20px; }
.modal-footer {
  padding: 13px 20px;
  border-top: 1px solid var(--clr-border);
  background: #f8fafc;
}

/* ── 16. Pagination ────────────────────────────────────────── */
.pagination { gap: 3px; }
.page-link {
  border-radius: var(--r-sm) !important;
  border: 1px solid var(--clr-border);
  color: var(--clr-muted);
  padding: 6px 10px; font-size: 13px; font-weight: 500;
  min-width: 36px; text-align: center;
  transition: var(--ease);
}
.page-link:hover { background: var(--clr-bg); border-color: #cbd5e1; color: var(--clr-text); }
.page-item.active .page-link { background: var(--clr-primary); border-color: var(--clr-primary); color: #fff; }
.page-item.disabled .page-link { opacity: .4; }

/* ── 17. Code / Pre ────────────────────────────────────────── */
pre, code { font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace; }
pre { background: #f8fafc; color: var(--clr-text); border: 1px solid var(--clr-border); padding: 16px; border-radius: var(--r); overflow-x: auto; font-size: 12px; line-height: 1.6; }
code { background: #f1f5f9; color: #0b5ed7; padding: 2px 6px; border-radius: 4px; font-size: 12px; }
pre code { background: none; color: inherit; padding: 0; }

/* ── 18. Image thumbnails ──────────────────────────────────── */
.img-thumbnail {
  border: 2px solid var(--clr-border);
  border-radius: var(--r);
  padding: 2px; background: var(--clr-surface);
  transition: var(--ease);
}
.img-thumbnail:hover { border-color: var(--clr-primary); box-shadow: 0 0 0 3px rgba(13,110,253,.15); }

/* ── 19. Utility overrides ─────────────────────────────────── */
.text-muted { color: var(--clr-muted) !important; }
.bg-light   { background: #f8fafc !important; }
hr { border-color: var(--clr-border); opacity: 1; }

/* Hide old Bootstrap navbar (replaced by sidebar) */
.navbar { display: none !important; }

/* Page header pattern */
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 24px;
}
.page-header h1, .page-header h2, .page-header h3 { margin: 0; }

/* Section label */
.section-label {
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .06em;
  color: var(--clr-muted); margin-bottom: 8px;
}

/* ── 20. Compliance step panels ────────────────────────────── */
.step-header {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 8px;
}
.step-num {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--clr-primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; flex-shrink: 0;
}
.step-num.done { background: var(--clr-success); }

/* ── 21. Loading spinner ───────────────────────────────────── */
.spinner-border-sm { width: 14px; height: 14px; border-width: 2px; }

/* ── 22. Animations ────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeUp .3s ease; }

/* ── 23. Responsive ────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar .brand-text,
  .sidebar .nav-section-label,
  .sidebar .nav-link span,
  .sidebar .sidebar-footer span { display: none; }
  .sidebar .nav-link    { justify-content: center; padding: 10px; }
  .sidebar .sidebar-brand { justify-content: center; padding: 0 12px; }
  .sidebar .sidebar-footer { justify-content: center; }
  .main-wrapper { margin-left: 60px; }
  .content-area { padding: 16px 12px; }
  .top-header { padding: 0 16px; }
}

/* ── 24. Filter bar ────────────────────────────────────────── */
.filter-bar {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r);
  padding: 10px 16px;
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

/* ── 25. Glossary & table content ──────────────────────────── */
.glossary-container { font-size: 13px; line-height: 1.6; }
.table-responsive   { border-radius: var(--r); overflow-x: auto; }