/* ============================================================
   Customer Support App — design system
   Refined minimal: neutral palette, soft elevation, calm motion
   ============================================================ */

:root {
  /* Ink / text */
  --ink:    #111113;
  --ink-2:  #3f3f46;
  --ink-3:  #71717a;
  --ink-4:  #a1a1aa;

  /* Surfaces */
  --bg:        #ffffff;
  --app-bg:    #f7f7f8;
  --surface:   #fafafa;
  --surface-2: #f4f4f5;

  /* Lines */
  --border:   #e6e6e9;
  --border-2: #f0f0f2;

  /* Semantic */
  --accent:      #111113;
  --danger:      #c0392f;
  --danger-bg:   #fef3f2;
  --danger-line: #f7cfca;
  --positive:    #15803d;
  --positive-bg: #f0fdf4;
  --positive-line:#bbf7d0;
  --warning:     #92610a;
  --warning-bg:  #fefce8;
  --info:        #1d4ed8;
  --info-bg:     #eff6ff;
  --info-line:   #bfdbfe;

  /* Radii */
  --r-sm:   6px;
  --r:      9px;
  --r-lg:   13px;
  --r-full: 999px;
  --radius: 9px; /* legacy alias */

  /* Elevation */
  --sh-xs: 0 1px 2px rgba(17,17,19,0.04);
  --sh-sm: 0 1px 2px rgba(17,17,19,0.05), 0 1px 3px rgba(17,17,19,0.04);
  --sh-md: 0 2px 6px rgba(17,17,19,0.06), 0 6px 16px rgba(17,17,19,0.06);
  --sh-lg: 0 12px 32px rgba(17,17,19,0.12), 0 4px 10px rgba(17,17,19,0.06);

  /* Ring */
  --ring: 0 0 0 3px rgba(17,17,19,0.10);

  --header-h: 57px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--app-bg);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: -0.006em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 { letter-spacing: -0.02em; }

a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--ink-2); }

::selection { background: rgba(17,17,19,0.12); }

/* Scrollbars */
* { scrollbar-width: thin; scrollbar-color: #d4d4d8 transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb {
  background: #d4d4d8;
  border-radius: var(--r-full);
  border: 3px solid transparent;
  background-clip: content-box;
}
*::-webkit-scrollbar-thumb:hover { background: #b4b4bb; background-clip: content-box; }
*::-webkit-scrollbar-track { background: transparent; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ---------- Header ---------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-h);
  padding: 0 28px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  font-size: 15px;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.brand-mark {
  display: inline-block;
  width: 20px;
  height: 20px;
  border-radius: 6px;
  background: linear-gradient(150deg, #2a2a2e 0%, #0a0a0b 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.14), var(--sh-xs);
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav a {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-3);
  padding: 7px 12px;
  border-radius: var(--r-sm);
  transition: color 0.15s var(--ease), background 0.15s var(--ease);
}
.nav a:hover { color: var(--ink); background: var(--surface-2); }
.nav a.active { color: var(--ink); background: var(--surface-2); font-weight: 600; }

.nav-divider { width: 1px; height: 18px; background: var(--border); margin: 0 8px; }

.user-chip {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  font-weight: 500;
}

.role-badge {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--r-full);
  background: var(--surface-2);
  color: var(--ink-3);
  border: 1px solid var(--border);
}
.role-badge.admin { background: var(--ink); color: #fff; border-color: var(--ink); }

.logout-btn {
  background: none;
  border: none;
  color: var(--ink-3);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: var(--r-sm);
  transition: color 0.15s var(--ease), background 0.15s var(--ease);
}
.logout-btn:hover { color: var(--ink); background: var(--surface-2); }

/* ---------- Page scaffold ---------- */

.page {
  max-width: 1040px;
  margin: 0 auto;
  padding: 40px 28px 64px;
}

.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 28px;
}

.page-title {
  margin: 0 0 6px;
  font-size: 24px;
  font-weight: 680;
  letter-spacing: -0.025em;
}

.page-sub {
  margin: 0;
  color: var(--ink-3);
  font-size: 14px;
  max-width: 62ch;
}

/* ---------- Form primitives ---------- */

.field { display: flex; flex-direction: column; gap: 7px; }

.field label,
.field legend {
  font-size: 12.5px;
  font-weight: 550;
  color: var(--ink-2);
}

.hint {
  font-size: 12px;
  color: var(--ink-4);
}

input[type="email"],
input[type="password"],
input[type="text"],
input[type="url"],
input[type="number"],
select,
textarea {
  font-family: inherit;
  font-size: 13.5px;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--ink);
  width: 100%;
  transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease), background 0.15s var(--ease);
}

input::placeholder, textarea::placeholder { color: var(--ink-4); }

input:hover:not(:focus),
select:hover:not(:focus),
textarea:hover:not(:focus) { border-color: #d4d4d8; }

textarea {
  resize: vertical;
  min-height: 96px;
  line-height: 1.6;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow: var(--ring);
}

select {
  appearance: none;
  cursor: pointer;
  padding-right: 34px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2371717a' fill='none' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}

/* ---------- Buttons ---------- */

button { font-family: inherit; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-size: 13.5px;
  font-weight: 550;
  padding: 9px 16px;
  border-radius: var(--r-sm);
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background 0.15s var(--ease), border-color 0.15s var(--ease),
              color 0.15s var(--ease), box-shadow 0.15s var(--ease), transform 0.06s var(--ease);
}
.btn:focus-visible { outline: none; box-shadow: var(--ring); }
.btn:active { transform: translateY(0.5px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }

.btn-primary {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  box-shadow: var(--sh-xs);
}
.btn-primary:hover { background: #000; box-shadow: var(--sh-sm); }

.btn-ghost {
  background: var(--bg);
  color: var(--ink-2);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--surface-2); color: var(--ink); border-color: #dcdce0; }

.btn-danger {
  background: var(--bg);
  color: var(--danger);
  border-color: var(--border);
}
.btn-danger:hover { background: var(--danger-bg); border-color: var(--danger-line); }

.btn-sm { padding: 6px 11px; font-size: 12.5px; border-radius: var(--r-sm); }

/* ---------- Empty state ---------- */

.empty-state {
  min-height: 280px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--ink-3);
  gap: 14px;
  text-align: center;
  font-size: 13.5px;
  line-height: 1.6;
}

.empty-mark {
  width: 40px;
  height: 40px;
  border-radius: var(--r-lg);
  background: var(--surface-2);
  border: 1px solid var(--border);
}

/* ---------- Inline message boxes ---------- */

.error-box, .success-box, .info-box {
  padding: 11px 14px;
  border-radius: var(--r-sm);
  font-size: 13px;
  line-height: 1.5;
  border: 1px solid transparent;
}
.error-box   { background: var(--danger-bg);   color: var(--danger);   border-color: var(--danger-line); }
.success-box { background: var(--positive-bg); color: var(--positive); border-color: var(--positive-line); }
.info-box    { background: var(--info-bg);     color: var(--info);     border-color: var(--info-line); }

/* ---------- Cards (admin / webhooks) ---------- */

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-sm);
  overflow: hidden;
}

.card-list { display: flex; flex-direction: column; }

.card-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 18px;
  border-bottom: 1px solid var(--border-2);
  gap: 14px;
  transition: background 0.12s var(--ease);
}
.card-row:last-child { border-bottom: none; }
.card-row:hover { background: var(--surface); }

.card-row-main { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.card-row-title { font-weight: 600; font-size: 14px; display: flex; align-items: center; gap: 8px; }
.card-row-sub { color: var(--ink-3); font-size: 12.5px; word-break: break-all; }
.card-row-actions { display: flex; gap: 7px; align-items: center; flex-shrink: 0; }

.inline-form {
  display: flex;
  flex-direction: column;
  gap: 11px;
  padding: 18px;
  background: var(--surface);
  border-bottom: 1px solid var(--border-2);
}
.card .inline-form:only-child,
.card > .inline-form:last-child { border-bottom: none; }
.inline-form .row { display: flex; gap: 9px; }
.inline-form .row > * { flex: 1; }

/* ---------- Sections ---------- */

.section { margin-bottom: 40px; }
.section:last-child { margin-bottom: 0; }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 14px;
  gap: 16px;
}

.section-title { font-size: 16px; font-weight: 650; margin: 0 0 4px; }
.section-sub { font-size: 13px; color: var(--ink-3); margin: 0; }

.status-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--ink-4);
  flex-shrink: 0;
}
.status-dot.ok  { background: var(--positive); box-shadow: 0 0 0 3px var(--positive-bg); }
.status-dot.err { background: var(--danger);   box-shadow: 0 0 0 3px var(--danger-bg); }
.status-dot.off { background: var(--ink-4); }

/* ---------- Auth pages ---------- */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(1200px 600px at 50% -10%, #ffffff 0%, var(--app-bg) 60%);
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 392px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-md);
  padding: 36px;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
  font-size: 15px;
}

.auth-title {
  font-size: 21px;
  font-weight: 680;
  margin: 0 0 6px;
}

.auth-sub {
  color: var(--ink-3);
  font-size: 13.5px;
  margin: 0 0 26px;
}

.auth-form { display: flex; flex-direction: column; gap: 16px; }
.auth-form .btn-primary { width: 100%; padding: 11px; }

.auth-foot {
  margin-top: 24px;
  text-align: center;
  font-size: 12.5px;
  color: var(--ink-3);
}

/* ---------- Modal (shared) ---------- */

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(17,17,19,0.38);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  align-items: flex-start;
  justify-content: center;
  padding: 48px 20px;
  overflow-y: auto;
  animation: overlay-in 0.18s var(--ease);
}
@keyframes overlay-in { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--bg);
  border-radius: var(--r-lg);
  max-width: 580px;
  width: 100%;
  border: 1px solid var(--border);
  box-shadow: var(--sh-lg);
  animation: modal-in 0.2s var(--ease);
}
@keyframes modal-in {
  from { opacity: 0; transform: translateY(8px) scale(0.985); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-head {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-2);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal-head h2 { margin: 0; font-size: 16px; font-weight: 650; }
.modal-body { padding: 22px; }
.modal-foot {
  padding: 16px 22px;
  border-top: 1px solid var(--border-2);
  display: flex;
  justify-content: space-between;
  gap: 8px;
  background: var(--surface);
  border-radius: 0 0 var(--r-lg) var(--r-lg);
}

.modal-x {
  background: none;
  border: none;
  font-size: 20px;
  line-height: 1;
  color: var(--ink-3);
  cursor: pointer;
  width: 30px; height: 30px;
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s var(--ease), color 0.15s var(--ease);
}
.modal-x:hover { background: var(--surface-2); color: var(--ink); }

/* ---------- Spinner ---------- */

@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--ink);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* ============================================================
   Channels page
   ============================================================ */

.ch-grid { display: grid; gap: 12px; }

.ch-card {
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px 20px;
  background: var(--bg);
  box-shadow: var(--sh-sm);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: start;
  transition: box-shadow 0.18s var(--ease), border-color 0.18s var(--ease);
}
.ch-card:hover { box-shadow: var(--sh-md); border-color: #dcdce0; }

.ch-name {
  font-size: 15px;
  font-weight: 650;
  margin: 0 0 6px;
  display: flex;
  align-items: center;
  gap: 9px;
}
.ch-meta { font-size: 12.5px; color: var(--ink-3); margin-bottom: 5px; }
.ch-sub  { font-size: 12.5px; color: var(--ink-2); }

.ch-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: var(--r-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.ch-status.ok  { background: var(--positive-bg); color: var(--positive); }
.ch-status.err { background: var(--danger-bg);   color: var(--danger); }
.ch-status.off { background: var(--surface-2);   color: var(--ink-3); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
.form-grid .full { grid-column: span 2; }
.form-grid label {
  display: block;
  font-size: 12px;
  font-weight: 550;
  color: var(--ink-2);
  margin-bottom: 6px;
}
.form-grid input, .form-grid select { width: 100%; }

.section-divider {
  grid-column: span 2;
  font-size: 11px;
  font-weight: 650;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding-top: 16px;
  border-top: 1px solid var(--border-2);
  margin-top: 6px;
}

.test-result {
  margin-top: 4px;
  padding: 10px 13px;
  border-radius: var(--r-sm);
  font-size: 12.5px;
  line-height: 1.6;
  border: 1px solid transparent;
}
.test-result.ok  { background: var(--positive-bg); color: var(--positive); border-color: var(--positive-line); }
.test-result.err { background: var(--danger-bg);   color: var(--danger);   border-color: var(--danger-line); }

/* ============================================================
   Tickets page
   ============================================================ */

.tk-layout {
  display: grid;
  grid-template-columns: 248px 384px 1fr;
  height: calc(100vh - var(--header-h));
  background: var(--bg);
}

.tk-sidebar {
  border-right: 1px solid var(--border);
  padding: 18px 12px;
  background: var(--app-bg);
  overflow-y: auto;
}
.tk-sidebar h3 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ink-4);
  font-weight: 650;
  margin: 18px 0 6px 10px;
}
.tk-sidebar h3:first-child { margin-top: 0; }

.filter-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 11px;
  border-radius: var(--r-sm);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  transition: background 0.12s var(--ease), color 0.12s var(--ease);
}
.filter-item:hover { background: var(--surface-2); }
.filter-item.active { background: var(--ink); color: #fff; font-weight: 550; box-shadow: var(--sh-xs); }

.filter-count {
  font-size: 11px;
  font-weight: 600;
  padding: 1px 8px;
  border-radius: var(--r-full);
  background: var(--surface-2);
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}
.filter-item.active .filter-count { background: rgba(255,255,255,0.16); color: #fff; }

.tk-list {
  border-right: 1px solid var(--border);
  overflow-y: auto;
  background: var(--bg);
}
.tk-list-head {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 14px;
  border-bottom: 1px solid var(--border-2);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.tk-list-head input { padding: 9px 12px; font-size: 13px; }

.tk-row {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-2);
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: background 0.12s var(--ease);
}
.tk-row:hover { background: var(--surface); }
.tk-row.active { background: var(--surface-2); border-left-color: var(--ink); }
.tk-row.unread .tk-name { font-weight: 680; }

.tk-row-top { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 5px; align-items: center; }
.tk-name { font-size: 13.5px; font-weight: 550; color: var(--ink); display: flex; align-items: center; gap: 7px; min-width: 0; }
.tk-name span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.unread-dot { width: 7px; height: 7px; background: var(--info); border-radius: 50%; display: inline-block; flex-shrink: 0; }
.tk-time { font-size: 11.5px; color: var(--ink-4); white-space: nowrap; flex-shrink: 0; }
.tk-subj { font-size: 12.5px; color: var(--ink-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-bottom: 8px; }
.tk-bottom { display: flex; gap: 6px; align-items: center; font-size: 11px; }

.tag {
  padding: 2px 8px;
  border-radius: var(--r-sm);
  font-weight: 600;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.tag-amazon  { background: #fff5ed; color: #c2410c; }
.tag-shopify { background: #ecfdf5; color: #047857; }
.tag-other   { background: var(--surface-2); color: var(--ink-3); }
.tag-status  { padding: 2px 8px; }
.tag-open     { background: var(--info-bg);  color: var(--info); }
.tag-pending  { background: var(--warning-bg); color: var(--warning); }
.tag-resolved { background: var(--surface-2); color: var(--ink-3); }

.tk-conv {
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--header-h));
  background: var(--surface);
}
.conv-head {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  flex-shrink: 0;
}
.conv-title { font-size: 17px; font-weight: 680; margin: 0 0 5px; }
.conv-sub { font-size: 12.5px; color: var(--ink-3); line-height: 1.65; }
.conv-actions { display: flex; gap: 8px; align-items: center; flex-shrink: 0; }
.conv-actions select { font-size: 12.5px; padding: 7px 28px 7px 10px; width: auto; }
.conv-body { flex: 1; overflow-y: auto; padding: 30px 24px; }

.conv-thread { max-width: 880px; margin: 0 auto; }

.msg-row {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  margin-bottom: 20px;
}
.msg-row.out { flex-direction: row-reverse; }
.msg-row.note { justify-content: center; }
.msg-row:last-child { margin-bottom: 4px; }

.avatar {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.02em;
  user-select: none;
  margin-top: 2px;
}
.avatar.in   { background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--border); }
.avatar.out  { background: var(--ink); color: #fff; }
.avatar.note { background: var(--warning-bg); color: var(--warning); border: 1px solid #fde68a; font-size: 15px; }

.msg {
  max-width: 78%;
  min-width: 0;
  padding: 12px 16px;
  border-radius: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  box-shadow: var(--sh-xs);
  font-size: 13.5px;
  line-height: 1.6;
}
.msg-inbound { border-top-left-radius: 5px; }
.msg-outbound {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  border-top-right-radius: 5px;
}
.msg-note {
  background: var(--warning-bg);
  border-color: #fde68a;
  max-width: 560px;
}
.msg-note .msg-head { color: var(--warning); opacity: 1; }
.msg-head { display: flex; justify-content: space-between; gap: 16px; font-size: 11.5px; margin-bottom: 7px; opacity: 0.62; }
.msg-from { font-weight: 650; }
.msg-body { white-space: pre-wrap; word-break: break-word; }
.msg-attachments { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 12px; padding-top: 12px; border-top: 1px solid rgba(0,0,0,0.07); }
.msg-outbound .msg-attachments { border-top-color: rgba(255,255,255,0.18); }
.att-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 11px;
  border-radius: var(--r-sm);
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 11.5px;
  color: var(--ink);
}
.att-chip:hover { background: var(--surface); }
.msg-outbound .att-chip { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.22); color: #fff; }

.reply-box {
  padding: 16px 24px 18px;
  border-top: 1px solid var(--border);
  background: var(--bg);
  flex-shrink: 0;
}
.reply-tabs { display: flex; gap: 4px; margin-bottom: 12px; }
.reply-tab {
  padding: 6px 14px;
  border-radius: var(--r-sm);
  font-size: 12.5px;
  font-weight: 550;
  cursor: pointer;
  color: var(--ink-3);
  background: none;
  border: 1px solid transparent;
  transition: background 0.15s var(--ease), color 0.15s var(--ease), border-color 0.15s var(--ease);
}
.reply-tab:hover { color: var(--ink); }
.reply-tab.active { background: var(--surface-2); border-color: var(--border); color: var(--ink); }
.reply-box textarea { min-height: 84px; font-size: 13.5px; }
.reply-actions { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; gap: 10px; }

.file-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 13px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--bg);
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink-2);
  transition: background 0.15s var(--ease), border-color 0.15s var(--ease);
}
.file-btn:hover { background: var(--surface-2); border-color: #dcdce0; }

.attach-list { display: flex; gap: 7px; flex-wrap: wrap; font-size: 11.5px; margin-top: 8px; }
.attach-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 9px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
}
.attach-chip button { background: none; border: none; color: var(--ink-3); cursor: pointer; font-size: 14px; line-height: 1; padding: 0; }
.attach-chip button:hover { color: var(--danger); }

.conv-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  justify-content: center;
  color: var(--ink-4);
  font-size: 13.5px;
}

.sync-msg {
  padding: 10px 14px;
  margin: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border-2);
  font-size: 12px;
  color: var(--ink-3);
}
.sync-msg.err { background: var(--danger-bg); color: var(--danger); }

/* ---------- Responsive ---------- */

@media (max-width: 1180px) {
  .tk-layout { grid-template-columns: 340px 1fr; }
  .tk-sidebar { display: none; }
}

@media (max-width: 820px) {
  .masthead { padding: 0 16px; }
  .nav { gap: 0; }
  .nav a { padding: 7px 9px; }
  .nav-divider { margin: 0 4px; }
  .page { padding: 28px 18px 48px; }
  .page-head { flex-direction: column; align-items: stretch; }
  .tk-layout { grid-template-columns: 1fr; height: auto; }
  .tk-list { max-height: 42vh; }
  .tk-conv { height: auto; min-height: 58vh; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .full, .section-divider { grid-column: span 1; }
}

/* ============================================================
   2026 refresh — refined surfaces, brand link, settings shell
   ============================================================ */

/* Brand becomes an anchor — kill default link styling and tighten hover */
a.brand {
  color: var(--ink);
  text-decoration: none;
  transition: opacity 0.15s var(--ease);
}
a.brand:hover { opacity: 0.78; }

/* Use the favicon SVG as the brand mark so the header logo matches the tab */
.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: linear-gradient(150deg, #1a1a1d 0%, #3a3a40 100%);
  background-image: url('/favicon.svg');
  background-size: cover;
  background-position: center;
  box-shadow: var(--sh-xs), 0 0 0 1px rgba(255,255,255,0.05) inset;
}

/* Slightly more "2026" header */
.masthead {
  background: rgba(255,255,255,0.72);
  border-bottom-color: rgba(0,0,0,0.06);
}

/* Buttons — subtle lift on hover, primary gets a glow */
.btn-primary:hover { background: #000; box-shadow: 0 4px 14px rgba(17,17,19,0.18), var(--sh-sm); }
.btn:hover { transform: translateY(-0.5px); }
.btn:active { transform: translateY(0.5px); }

/* Card lift */
.card { transition: box-shadow 0.18s var(--ease); }
.card:hover { box-shadow: var(--sh-sm); }

/* ---------- Settings layout ---------- */
.settings-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 32px;
  max-width: 1180px;
  margin: 28px auto;
  padding: 0 28px;
  align-items: flex-start;
}
@media (max-width: 820px) {
  .settings-shell { grid-template-columns: 1fr; gap: 16px; }
}

.settings-side {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 14px 12px;
  box-shadow: var(--sh-xs);
}
.settings-side h3 {
  margin: 4px 8px 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.settings-nav { display: flex; flex-direction: column; gap: 2px; }
.settings-nav button {
  appearance: none;
  background: transparent;
  border: 0;
  text-align: left;
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  padding: 9px 12px;
  border-radius: var(--r-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 9px;
  transition: background 0.15s var(--ease), color 0.15s var(--ease);
}
.settings-nav button:hover { background: var(--surface-2); color: var(--ink); }
.settings-nav button.active {
  background: var(--ink);
  color: #fff;
  font-weight: 600;
}
.settings-nav .ico {
  width: 16px; height: 16px; display: inline-block; opacity: 0.85;
}

.settings-main { min-width: 0; }
.settings-section { display: none; }
.settings-section.active { display: block; }
.settings-section h1 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.022em;
}
.settings-section .sub {
  margin: 0 0 18px;
  color: var(--ink-3);
  font-size: 13.5px;
}

.panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px 20px;
  margin-bottom: 16px;
  box-shadow: var(--sh-xs);
  transition: box-shadow 0.18s var(--ease);
}
.panel:hover { box-shadow: var(--sh-sm); }
.panel h2 { margin: 0 0 4px; font-size: 15.5px; font-weight: 650; }
.panel .hint { font-size: 12.5px; color: var(--ink-3); margin: 0 0 12px; line-height: 1.55; }

.set-row { display: flex; gap: 10px; align-items: center; margin: 6px 0; flex-wrap: wrap; }
.set-row > label.k {
  font-size: 13px;
  min-width: 150px;
  color: var(--ink-2);
  font-weight: 500;
}
.set-row input[type=text],
.set-row input[type=number],
.set-row input[type=datetime-local],
.set-row select,
.set-row textarea {
  flex: 1;
  padding: 8px 11px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-size: 13px;
  font-family: inherit;
  background: #fff;
  transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
.set-row input:focus, .set-row select:focus, .set-row textarea:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow: var(--ring);
}
.set-row textarea { min-height: 80px; resize: vertical; }

/* Profile accordion */
.profile-acc {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: var(--sh-xs);
  transition: box-shadow 0.18s var(--ease);
}
.profile-acc:hover { box-shadow: var(--sh-sm); }
.profile-acc.open { box-shadow: var(--sh-md); }
.profile-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s var(--ease);
}
.profile-head:hover { background: var(--surface-2); }
.profile-head .name {
  font-weight: 650;
  font-size: 15px;
  flex: 1;
  letter-spacing: -0.015em;
}
.profile-head .chev {
  width: 16px; height: 16px;
  transition: transform 0.2s var(--ease);
  color: var(--ink-3);
  flex-shrink: 0;
}
.profile-acc.open .profile-head .chev { transform: rotate(90deg); }
.profile-body {
  padding: 6px 18px 18px;
  border-top: 1px solid var(--border-2);
  display: none;
}
.profile-acc.open .profile-body { display: block; }

.pill {
  padding: 3px 9px;
  border-radius: var(--r-full);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
}
.pill.on  { background: #ecfdf5; color: #047857; border-color: #d1fae5; }
.pill.off { background: var(--surface-2); color: var(--ink-3); border-color: var(--border); }

.subhead {
  margin: 18px 0 8px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* Mode switch (OOO weekly vs date range) */
.mode-switch {
  display: inline-flex;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  padding: 3px;
}
.mode-switch label {
  cursor: pointer;
  padding: 6px 14px;
  font-size: 12.5px;
  font-weight: 500;
  border-radius: var(--r-full);
  color: var(--ink-3);
  transition: all 0.15s var(--ease);
}
.mode-switch input { display: none; }
.mode-switch input:checked + span {
  background: #fff;
  color: var(--ink);
  font-weight: 600;
  box-shadow: var(--sh-xs);
}
.mode-switch label span {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--r-full);
  margin: -6px -14px;
  transition: all 0.15s var(--ease);
}

.delay-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px 4px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  font-size: 12px;
  color: var(--ink-2);
}
.delay-chip input { width: 60px; border: 0; background: transparent; font: inherit; text-align: right; }

.rules-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.rules-table th, .rules-table td { padding: 8px 10px; border-bottom: 1px solid var(--border-2); text-align: left; }
.rules-table th { font-size: 11.5px; font-weight: 600; color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.06em; }

.template-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 12px 14px;
  margin-bottom: 10px;
  transition: background 0.15s var(--ease);
}
.template-card:hover { background: #fff; box-shadow: var(--sh-xs); }
.template-card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; gap: 8px; }
.template-card-head strong { font-size: 14px; font-weight: 600; }
.template-card pre { white-space: pre-wrap; margin: 0; font-family: inherit; font-size: 12.5px; color: var(--ink-2); }

.small { font-size: 11.5px; color: var(--ink-3); line-height: 1.5; }