.tk-root {
  min-height: calc(100vh - 64px);
  padding-top: 36px;
  padding-bottom: 48px;
}

.tk-center {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 60vh;
}

.tk-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--yellow);
  border-radius: 50%;
  animation: tk-spin .7s linear infinite;
}

@keyframes tk-spin { to { transform: rotate(360deg); } }

.tk-empty-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px 40px;
  text-align: center;
  max-width: 420px;
  width: 100%;
}

.tk-empty-card h2 {
  font-size: 20px;
  margin-bottom: 8px;
}

.tk-empty-card p {
  color: var(--muted);
  font-size: 14px;
}

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

.tk-page-header h1 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 4px;
}

.tk-sub {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}

.tk-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.tk-filter-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 100px;
  cursor: pointer;
  transition: color .15s, border-color .15s, background .15s;
}

.tk-filter-btn.active,
.tk-filter-btn:hover {
  color: var(--text);
  border-color: rgba(255,255,255,.2);
  background: rgba(255,255,255,.06);
}

.tk-filter-btn.active {
  color: var(--yellow);
  border-color: rgba(245,197,24,.4);
  background: rgba(245,197,24,.08);
}

.tk-ticket-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 10px;
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
  transition: border-color .15s, background .15s;
}

.tk-ticket-card:hover {
  border-color: rgba(255,255,255,.15);
  background: rgba(255,255,255,.03);
}

.tk-ticket-id {
  font-size: 12px;
  color: var(--muted);
  font-weight: 600;
  flex-shrink: 0;
  min-width: 44px;
}

.tk-ticket-main {
  flex: 1;
  min-width: 0;
}

.tk-ticket-subject {
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}

.tk-ticket-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.tk-ticket-date {
  font-size: 12px;
  color: var(--muted);
}

.tk-badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 2px 9px;
  border-radius: 100px;
}

.tk-badge-cat {
  background: rgba(139,92,246,.15);
  color: #a78bfa;
  border: 1px solid rgba(139,92,246,.25);
}

.tk-status-open       { background: rgba(59,130,246,.15);  color: #60a5fa; border: 1px solid rgba(59,130,246,.25); }
.tk-status-in_progress { background: rgba(249,115,22,.15); color: #fb923c; border: 1px solid rgba(249,115,22,.25); }
.tk-status-resolved   { background: rgba(34,197,94,.15);   color: #4ade80; border: 1px solid rgba(34,197,94,.25); }
.tk-status-closed     { background: rgba(136,146,164,.12); color: var(--muted); border: 1px solid rgba(136,146,164,.2); }

.tk-empty-msg {
  text-align: center;
  padding: 48px 24px;
  color: var(--muted);
  font-size: 14px;
}

.tk-view-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.tk-view-header h1 {
  font-size: 24px;
  font-weight: 800;
}

.tk-back-btn {
  padding: 8px 16px;
  font-size: 13px;
}

.tk-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.tk-form-group {
  margin-bottom: 20px;
}

.tk-form-group label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.tk-char-count {
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
}

.tk-form-group input,
.tk-form-group select,
.tk-form-group textarea {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  transition: border-color .15s;
  resize: vertical;
}

.tk-form-group input:focus,
.tk-form-group select:focus,
.tk-form-group textarea:focus {
  border-color: var(--yellow);
}

.tk-form-group select option {
  background: var(--bg-2);
}

.tk-error {
  color: #fca5a5;
  font-size: 13px;
  margin-bottom: 12px;
}

.tk-detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.tk-detail-header {
  padding: 18px 28px 16px;
  border-bottom: 1px solid var(--border);
}

.tk-detail-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.tk-detail-meta .tk-ticket-id {
  min-width: auto;
}

.tk-detail-header h2 {
  font-size: 20px;
  font-weight: 700;
}

.tk-messages {
  padding: 16px 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tk-message {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tk-message-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tk-message-sender {
  font-size: 13px;
  font-weight: 700;
}

.tk-message-sender.is-admin {
  color: var(--yellow);
}

.tk-message-sender.is-user {
  color: #60a5fa;
}

.tk-message-time {
  font-size: 12px;
  color: var(--muted);
}

.tk-message-body {
  background: var(--bg-2);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
  border-left: 3px solid transparent;
}

.tk-message.admin .tk-message-body {
  border-left-color: rgba(245,197,24,.5);
}

.tk-message.user .tk-message-body {
  border-left-color: rgba(59,130,246,.4);
}

.tk-reply-area {
  padding: 16px 28px 20px;
  border-top: 1px solid var(--border);
}

.tk-reply-area .tk-form-group {
  margin-bottom: 12px;
}

.tk-typing {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  color: var(--muted);
  font-size: 13px;
}

.tk-typing-dots {
  display: inline-flex;
  gap: 3px;
  align-items: center;
}

.tk-typing-dots span {
  width: 6px;
  height: 6px;
  background: var(--muted);
  border-radius: 50%;
  animation: tk-dot 1.2s ease-in-out infinite;
  opacity: .4;
}

.tk-typing-dots span:nth-child(2) { animation-delay: .2s; }
.tk-typing-dots span:nth-child(3) { animation-delay: .4s; }

@keyframes tk-dot {
  0%, 60%, 100% { transform: translateY(0); opacity: .4; }
  30% { transform: translateY(-4px); opacity: 1; }
}

.tk-closed-msg {
  padding: 16px 28px 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 600px) {
  .tk-root { padding-top: 20px; padding-bottom: 32px; }
  .tk-page-header { flex-direction: column; align-items: flex-start; }
  .tk-form-card { padding: 20px; }
  .tk-detail-header { padding: 14px 16px 12px; }
  .tk-messages { padding: 12px 16px; }
  .tk-reply-area { padding: 12px 16px 16px; }
}