/* =========================================================================
   CSKH AI Platform — Enhancement layer
   Layered ON TOP of Tailwind utilities, adds: design tokens, animations,
   components (toast/modal/skeleton/table/empty), a11y, micro-interactions.
   ========================================================================= */

:root {
  --c-bg:        #f8fafc;
  --c-surface:   #ffffff;
  --c-surface-2: #f1f5f9;
  --c-border:    #e2e8f0;
  --c-border-strong: #cbd5e1;
  --c-fg:        #0f172a;
  --c-fg-muted:  #64748b;
  --c-fg-subtle: #94a3b8;

  --c-brand:        #0ea5e9;
  --c-brand-hover:  #0284c7;
  --c-brand-soft:   #e0f2fe;
  --c-accent:       #d946ef;

  --c-success:      #10b981;
  --c-success-soft: #d1fae5;
  --c-warning:      #f59e0b;
  --c-warning-soft: #fef3c7;
  --c-danger:       #ef4444;
  --c-danger-soft:  #fee2e2;
  --c-info:         #3b82f6;
  --c-info-soft:    #dbeafe;

  --radius-sm: 8px;
  --radius:    12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --shadow-sm: 0 1px 2px rgba(15,23,42,.04);
  --shadow:    0 2px 6px rgba(15,23,42,.06), 0 1px 2px rgba(15,23,42,.04);
  --shadow-lg: 0 12px 32px rgba(15,23,42,.10), 0 4px 8px rgba(15,23,42,.04);

  --sidebar-w:          17rem;
  --sidebar-w-collapsed:5rem;
  --topbar-h:           60px;

  --easing: cubic-bezier(.2,.7,.2,1);
}

html.dark {
  --c-bg:        #0b1220;
  --c-surface:   #111827;
  --c-surface-2: #1f2937;
  --c-border:    #1f2937;
  --c-border-strong: #334155;
  --c-fg:        #f1f5f9;
  --c-fg-muted:  #94a3b8;
  --c-fg-subtle: #64748b;
  --c-brand-soft:  rgba(14,165,233,.18);
  --c-success-soft: rgba(16,185,129,.18);
  --c-warning-soft: rgba(245,158,11,.18);
  --c-danger-soft:  rgba(239,68,68,.18);
  --c-info-soft:    rgba(59,130,246,.18);
}

* { box-sizing: border-box; }

html, body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--c-bg);
  color: var(--c-fg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 99px; border: 2px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; background-clip: padding-box; border: 2px solid transparent; }
::-webkit-scrollbar-track { background: transparent; }
html.dark ::-webkit-scrollbar-thumb { background: #334155; background-clip: padding-box; border: 2px solid transparent; }
html.dark ::-webkit-scrollbar-thumb:hover { background: #475569; background-clip: padding-box; border: 2px solid transparent; }

/* Focus ring */
:focus-visible {
  outline: 2px solid var(--c-brand);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ======================================================================
   Layout shell
   ====================================================================== */

.app-shell { display: flex; min-height: 100vh; }

.app-sidebar {
  width: var(--sidebar-w);
  background: var(--c-surface);
  border-right: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 40;
  transition: transform .25s var(--easing), width .25s var(--easing);
}
.app-main {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-width: 0;
  transition: margin-left .25s var(--easing);
}
body.sidebar-collapsed .app-sidebar { width: var(--sidebar-w-collapsed); }
body.sidebar-collapsed .app-sidebar .nav-label,
body.sidebar-collapsed .app-sidebar .nav-group-label,
body.sidebar-collapsed .app-sidebar .brand-text,
body.sidebar-collapsed .app-sidebar .user-text { display: none; }
body.sidebar-collapsed .app-sidebar .nav-item { justify-content: center; padding-inline: 0; }
body.sidebar-collapsed .app-main { margin-left: var(--sidebar-w-collapsed); }

.app-topbar {
  height: var(--topbar-h);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
}

.app-content { padding: 24px; max-width: 1600px; }

/* Mobile drawer */
@media (max-width: 1024px) {
  .app-sidebar {
    transform: translateX(-100%);
    box-shadow: var(--shadow-lg);
  }
  body.sidebar-open .app-sidebar { transform: translateX(0); }
  .app-main { margin-left: 0 !important; }
  body.sidebar-open::before {
    content: '';
    position: fixed; inset: 0;
    background: rgba(15,23,42,.4);
    backdrop-filter: blur(2px);
    z-index: 35;
  }
}

/* ======================================================================
   Sidebar nav
   ====================================================================== */

.brand {
  padding: 16px 20px;
  border-bottom: 1px solid var(--c-border);
  display: flex; align-items: center; gap: 12px;
}
.brand-logo {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--c-brand) 0%, var(--c-accent) 100%);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  box-shadow: 0 6px 16px rgba(14,165,233,.25);
  flex-shrink: 0;
}
.brand-text strong { font-size: 14px; font-weight: 700; letter-spacing: -.01em; }
.brand-text small { display: block; font-size: 11px; color: var(--c-fg-muted); margin-top: 1px; }

.nav { flex: 1; padding: 12px 10px; overflow-y: auto; }
.nav-group { margin-bottom: 14px; }
.nav-group-label {
  font-size: 10.5px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .08em;
  color: var(--c-fg-subtle);
  padding: 6px 12px;
  display: block;
}
.nav-item {
  display: flex; align-items: center; gap: 11px;
  padding: 8px 12px;
  border-radius: 9px;
  font-size: 13.5px; font-weight: 500;
  color: var(--c-fg-muted);
  text-decoration: none;
  margin: 1px 0;
  transition: background .15s, color .15s;
}
.nav-item:hover { background: var(--c-surface-2); color: var(--c-fg); }
.nav-item .nav-icon { width: 18px; height: 18px; flex-shrink: 0; }
.nav-item.active {
  background: var(--c-brand-soft);
  color: var(--c-brand-hover);
  font-weight: 600;
}
html.dark .nav-item.active { color: #7dd3fc; }

.sidebar-user {
  padding: 12px 16px;
  border-top: 1px solid var(--c-border);
  display: flex; align-items: center; gap: 10px;
}
.avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-brand) 0%, var(--c-accent) 100%);
  color: #fff; font-weight: 700; font-size: 13px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.user-text { min-width: 0; flex: 1; }
.user-text strong { font-size: 13px; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-text small { font-size: 11px; color: var(--c-fg-muted); }

/* ======================================================================
   Topbar
   ====================================================================== */

.icon-btn {
  width: 36px; height: 36px;
  border-radius: 9px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--c-fg-muted);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.icon-btn:hover { background: var(--c-surface-2); color: var(--c-fg); }
.icon-btn svg { width: 18px; height: 18px; }

.search-trigger {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 12px;
  border-radius: 9px;
  border: 1px solid var(--c-border);
  background: var(--c-surface-2);
  color: var(--c-fg-muted);
  cursor: pointer;
  font-size: 13px;
  min-width: 220px;
  transition: border-color .15s;
}
.search-trigger:hover { border-color: var(--c-border-strong); }
.search-trigger kbd {
  margin-left: auto;
  font-size: 10.5px; font-family: inherit;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 5px;
  padding: 1px 6px;
  color: var(--c-fg-muted);
}

/* ======================================================================
   Buttons
   ====================================================================== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 13px; font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s, transform .1s;
  white-space: nowrap;
  user-select: none;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--c-brand); color: #fff; }
.btn-primary:hover { background: var(--c-brand-hover); }
.btn-secondary { background: var(--c-surface); color: var(--c-fg); border-color: var(--c-border-strong); }
.btn-secondary:hover { background: var(--c-surface-2); }
.btn-ghost { background: transparent; color: var(--c-fg-muted); }
.btn-ghost:hover { background: var(--c-surface-2); color: var(--c-fg); }
.btn-danger { background: var(--c-danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-sm { padding: 5px 10px; font-size: 12px; border-radius: 8px; }
.btn-lg { padding: 11px 20px; font-size: 14px; }
.btn[disabled], .btn.is-loading { opacity: .55; cursor: not-allowed; }

/* ======================================================================
   Card
   ====================================================================== */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--c-border);
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
}
.card-title { font-size: 14.5px; font-weight: 600; }
.card-subtitle { font-size: 12px; color: var(--c-fg-muted); margin-top: 2px; }
.card-body { padding: 20px; }

/* ======================================================================
   Badge / Status pill
   ====================================================================== */
.pill {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 11px; font-weight: 600;
  padding: 3px 9px;
  border-radius: 99px;
  background: var(--c-surface-2);
  color: var(--c-fg-muted);
  letter-spacing: .02em;
}
.pill::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: .8; }
.pill.no-dot::before { display: none; }
.pill-success { background: var(--c-success-soft); color: var(--c-success); }
.pill-warning { background: var(--c-warning-soft); color: var(--c-warning); }
.pill-danger  { background: var(--c-danger-soft);  color: var(--c-danger); }
.pill-info    { background: var(--c-info-soft);    color: var(--c-info); }
.pill-brand   { background: var(--c-brand-soft);   color: var(--c-brand-hover); }

/* ======================================================================
   Stat card
   ====================================================================== */
.stat {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  position: relative;
  overflow: hidden;
}
.stat-label { font-size: 12px; color: var(--c-fg-muted); font-weight: 500; }
.stat-value { font-size: 28px; font-weight: 700; letter-spacing: -.02em; margin-top: 6px; line-height: 1.1; }
.stat-meta  { font-size: 11.5px; color: var(--c-fg-muted); margin-top: 6px; display: flex; align-items: center; gap: 6px; }
.stat-icon  { position: absolute; top: 16px; right: 16px; width: 32px; height: 32px; border-radius: 9px; display: flex; align-items: center; justify-content: center; }
.stat-delta-up   { color: var(--c-success); font-weight: 600; }
.stat-delta-down { color: var(--c-danger);  font-weight: 600; }

/* ======================================================================
   Table
   ====================================================================== */
.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); }
.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
}
.table thead th {
  background: var(--c-surface-2);
  color: var(--c-fg-muted);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
  position: sticky; top: 0;
}
.table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--c-border);
  vertical-align: middle;
}
.table tbody tr:hover { background: var(--c-surface-2); }
.table tbody tr:last-child td { border-bottom: 0; }
.table .col-actions { text-align: right; white-space: nowrap; }

/* ======================================================================
   Form
   ====================================================================== */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 500; color: var(--c-fg); margin-bottom: 6px; }
.form-help  { font-size: 11.5px; color: var(--c-fg-muted); margin-top: 4px; }
.form-control,
input.input, select.input, textarea.input {
  width: 100%;
  padding: 9px 12px;
  font-size: 13.5px;
  font-family: inherit;
  border-radius: 10px;
  border: 1px solid var(--c-border-strong);
  background: var(--c-surface);
  color: var(--c-fg);
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.form-control:focus, .input:focus {
  border-color: var(--c-brand);
  box-shadow: 0 0 0 3px var(--c-brand-soft);
  outline: none;
}
textarea.input { resize: vertical; min-height: 80px; line-height: 1.5; }

.toggle { position: relative; display: inline-flex; align-items: center; gap: 10px; cursor: pointer; user-select: none; }
.toggle input { position: absolute; opacity: 0; }
.toggle .track {
  width: 36px; height: 20px;
  border-radius: 99px;
  background: var(--c-border-strong);
  transition: background .2s;
  position: relative;
  flex-shrink: 0;
}
.toggle .track::after {
  content: '';
  position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px;
  background: #fff;
  border-radius: 50%;
  transition: transform .2s var(--easing);
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
}
.toggle input:checked + .track { background: var(--c-brand); }
.toggle input:checked + .track::after { transform: translateX(16px); }

/* ======================================================================
   Modal / Drawer
   ====================================================================== */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(15,23,42,.5);
  backdrop-filter: blur(4px);
  z-index: 60;
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}
.modal-backdrop.is-open { opacity: 1; pointer-events: auto; }
.modal-panel {
  background: var(--c-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 540px;
  max-height: calc(100vh - 32px);
  overflow: auto;
  transform: translateY(8px) scale(.98);
  transition: transform .2s var(--easing);
}
.modal-backdrop.is-open .modal-panel { transform: translateY(0) scale(1); }
.modal-header { padding: 18px 22px 0; }
.modal-title  { font-size: 16px; font-weight: 700; }
.modal-subtitle { font-size: 12.5px; color: var(--c-fg-muted); margin-top: 3px; }
.modal-body   { padding: 18px 22px; }
.modal-footer { padding: 14px 22px 18px; display: flex; gap: 10px; justify-content: flex-end; }

.drawer { max-width: 480px; width: 100%; height: 100vh; max-height: 100vh; border-radius: 0; }
.drawer-right { margin-left: auto; margin-right: 0; }

/* ======================================================================
   Toast
   ====================================================================== */
#toast-root {
  position: fixed; bottom: 20px; right: 20px;
  z-index: 100;
  display: flex; flex-direction: column; gap: 8px;
  pointer-events: none;
  max-width: calc(100vw - 40px);
}
.toast {
  display: flex; align-items: flex-start; gap: 10px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-info);
  border-radius: var(--radius);
  padding: 12px 14px;
  min-width: 260px; max-width: 380px;
  box-shadow: var(--shadow-lg);
  font-size: 13px;
  pointer-events: auto;
  animation: toastIn .3s var(--easing);
}
.toast.toast-success { border-left-color: var(--c-success); }
.toast.toast-warning { border-left-color: var(--c-warning); }
.toast.toast-error   { border-left-color: var(--c-danger); }
.toast .toast-icon   { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; }
.toast.toast-success .toast-icon { color: var(--c-success); }
.toast.toast-warning .toast-icon { color: var(--c-warning); }
.toast.toast-error   .toast-icon { color: var(--c-danger); }
.toast.toast-info    .toast-icon { color: var(--c-info); }
.toast-body { flex: 1; min-width: 0; }
.toast-close { color: var(--c-fg-subtle); cursor: pointer; background: none; border: none; padding: 0; }
.toast-close:hover { color: var(--c-fg); }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}
.toast.is-leaving { animation: toastOut .25s var(--easing) forwards; }
@keyframes toastOut {
  to { opacity: 0; transform: translateX(20px); }
}

/* ======================================================================
   Skeleton
   ====================================================================== */
.skel {
  background: linear-gradient(90deg, var(--c-surface-2) 0%, #e2e8f0 40%, var(--c-surface-2) 80%);
  background-size: 200% 100%;
  animation: skelShimmer 1.4s linear infinite;
  border-radius: 8px;
  display: inline-block;
}
html.dark .skel {
  background: linear-gradient(90deg, #1e293b 0%, #334155 40%, #1e293b 80%);
  background-size: 200% 100%;
}
@keyframes skelShimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }
.skel-line { height: 12px; width: 100%; }
.skel-circle { border-radius: 50%; }

/* ======================================================================
   Empty state
   ====================================================================== */
.empty {
  padding: 48px 24px;
  text-align: center;
  color: var(--c-fg-muted);
}
.empty-icon {
  width: 56px; height: 56px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: var(--c-surface-2);
  display: flex; align-items: center; justify-content: center;
  color: var(--c-fg-subtle);
}
.empty-title { font-size: 14px; font-weight: 600; color: var(--c-fg); margin-bottom: 4px; }
.empty-text  { font-size: 12.5px; }

/* ======================================================================
   Command palette
   ====================================================================== */
#palette-backdrop {
  position: fixed; inset: 0;
  background: rgba(15,23,42,.55);
  backdrop-filter: blur(4px);
  z-index: 70;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
}
#palette-backdrop.is-open { display: flex; }
.palette {
  background: var(--c-surface);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  width: 100%; max-width: 560px;
  overflow: hidden;
}
.palette input {
  width: 100%;
  font-size: 15px;
  padding: 16px 20px;
  border: 0;
  background: transparent;
  color: var(--c-fg);
  outline: none;
  border-bottom: 1px solid var(--c-border);
}
.palette-list { max-height: 380px; overflow-y: auto; padding: 6px; }
.palette-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 13.5px;
  color: var(--c-fg);
  cursor: pointer;
  text-decoration: none;
}
.palette-item:hover, .palette-item.active { background: var(--c-brand-soft); color: var(--c-brand-hover); }
.palette-item .palette-icon { width: 16px; height: 16px; color: var(--c-fg-muted); }

/* ======================================================================
   Chat / Conversations specific
   ====================================================================== */
.inbox {
  display: grid;
  grid-template-columns: 320px 1fr 320px;
  gap: 16px;
  height: calc(100vh - var(--topbar-h) - 48px);
}
@media (max-width: 1280px) { .inbox { grid-template-columns: 280px 1fr; } .inbox .inbox-info { display: none; } }
@media (max-width: 900px)  { .inbox { grid-template-columns: 1fr; } .inbox .inbox-list { display: none; } }

.inbox-pane { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg); display: flex; flex-direction: column; min-height: 0; }
.inbox-pane-header { padding: 14px 16px; border-bottom: 1px solid var(--c-border); display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.inbox-pane-body   { flex: 1; overflow-y: auto; padding: 8px; }

.conv-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  margin: 2px 0;
}
.conv-row:hover { background: var(--c-surface-2); }
.conv-row.active { background: var(--c-brand-soft); }
.conv-row .conv-meta { flex: 1; min-width: 0; }
.conv-row .conv-name { font-weight: 600; font-size: 13.5px; color: var(--c-fg); display: flex; justify-content: space-between; gap: 6px; }
.conv-row .conv-name time { font-size: 10.5px; color: var(--c-fg-muted); font-weight: 400; flex-shrink: 0; }
.conv-row .conv-snippet { font-size: 12px; color: var(--c-fg-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-top: 2px; }

.bubble-row { display: flex; margin-bottom: 12px; }
.bubble-row.from-customer { justify-content: flex-start; }
.bubble-row.from-ai, .bubble-row.from-human, .bubble-row.from-system { justify-content: flex-end; }
.bubble {
  max-width: 76%;
  padding: 9px 14px;
  border-radius: 16px;
  font-size: 13.5px;
  line-height: 1.55;
  word-wrap: break-word;
}
.bubble-customer { background: var(--c-surface-2); color: var(--c-fg); border-bottom-left-radius: 4px; }
.bubble-ai       { background: var(--c-brand-soft); color: var(--c-brand-hover); border-bottom-right-radius: 4px; }
html.dark .bubble-ai { color: #bae6fd; }
.bubble-human    { background: var(--c-success-soft); color: var(--c-success); border-bottom-right-radius: 4px; }
.bubble-system   { background: var(--c-warning-soft); color: var(--c-warning); border-bottom-right-radius: 4px; font-size: 12.5px; }
.bubble-meta { font-size: 10.5px; opacity: .72; margin-bottom: 3px; font-weight: 600; }

/* Typing dots */
.typing { display: inline-flex; gap: 3px; padding: 8px 12px; }
.typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--c-fg-subtle); animation: typingBounce 1.3s infinite ease-in-out both; }
.typing span:nth-child(2) { animation-delay: .15s; }
.typing span:nth-child(3) { animation-delay: .3s; }
@keyframes typingBounce { 0%,80%,100% { transform: scale(0.6); opacity: .5; } 40% { transform: scale(1); opacity: 1; } }

/* ======================================================================
   Misc
   ====================================================================== */
.muted   { color: var(--c-fg-muted); }
.subtle  { color: var(--c-fg-subtle); }
.divider { height: 1px; background: var(--c-border); border: 0; margin: 16px 0; }
.fade-in { animation: fadeIn .3s var(--easing); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

.kbd {
  display: inline-block;
  padding: 1px 6px;
  font-size: 11px;
  font-family: 'SFMono-Regular', Menlo, monospace;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border-strong);
  border-radius: 4px;
}