:root {
  --accent: #00a884;
  --accent-dark: #008f72;
  --danger: #dc3545;
  --bg: #f0f2f5;
  --surface: #ffffff;
  --text: #111b21;
  --muted: #667781;
  --border: #e9edef;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 14px 24px;
  background: var(--accent);
  color: #fff;
}

header h1 {
  font-size: 18px;
  margin: 0;
}

.header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.header-link {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 6px;
  padding: 7px 14px;
  font-size: 14px;
  text-decoration: none;
}

.header-link:hover {
  background: rgba(255, 255, 255, 0.12);
}

.api-key-controls {
  display: flex;
  gap: 8px;
}

.api-key-controls input {
  border: none;
  border-radius: 6px;
  padding: 8px 10px;
  min-width: 260px;
}

.api-key-controls button {
  background: #fff;
  color: var(--accent-dark);
  font-weight: 600;
}

.banner {
  background: #fff3cd;
  color: #8a6d1a;
  padding: 10px 24px;
  font-size: 14px;
}

main {
  max-width: 960px;
  margin: 24px auto;
  padding: 0 16px;
  display: grid;
  gap: 16px;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.start-form {
  display: flex;
  gap: 8px;
  width: 100%;
}

.start-form input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
}

.global-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.field-error {
  color: var(--danger);
  font-size: 13px;
  margin: 0;
}

button {
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  cursor: pointer;
}

button:hover {
  background: var(--accent-dark);
}

button:disabled {
  opacity: 0.6;
  cursor: default;
}

button.secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

button.secondary:hover {
  background: var(--bg);
}

button.secondary.danger {
  color: var(--danger);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

th,
td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

thead th {
  color: var(--muted);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.04em;
}

tbody tr:last-child td {
  border-bottom: none;
}

.session-id {
  font-weight: 600;
  overflow-wrap: anywhere;
}

.actions-col,
td.actions-cell {
  text-align: right;
}

.actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.badge-connected {
  background: #d9fdd3;
  color: #0b6b48;
}

.badge-pending {
  background: #fff3cd;
  color: #8a6d1a;
}

.empty {
  color: var(--muted);
  text-align: center;
  padding: 24px;
  background: var(--surface);
  border-radius: 10px;
  margin: 0;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(17, 27, 33, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 100;
}

.modal {
  background: var(--surface);
  border-radius: 12px;
  max-width: 420px;
  width: 100%;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  font-size: 16px;
  margin: 0;
  overflow-wrap: anywhere;
}

.close-btn {
  background: none;
  color: var(--muted);
  font-size: 22px;
  line-height: 1;
  padding: 0 4px;
}

.close-btn:hover {
  background: none;
  color: var(--text);
}

.modal-body {
  padding: 18px;
  display: grid;
  gap: 12px;
  justify-items: center;
}

#qrImage {
  width: 264px;
  height: 264px;
  image-rendering: pixelated;
}

.qr-placeholder {
  width: 264px;
  height: 264px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
}

.qr-success {
  font-size: 20px;
  color: #0b6b48;
  font-weight: 700;
  padding: 40px 0;
}

.hint {
  font-size: 12px;
  color: var(--muted);
  margin: 0;
  text-align: center;
}

details {
  width: 100%;
  font-size: 14px;
}

summary {
  cursor: pointer;
  color: var(--accent-dark);
}

.pairing-form {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.pairing-form input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
}

.pairing-code {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-align: center;
  margin-top: 12px;
}

#detailsList {
  width: 100%;
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 16px;
  font-size: 14px;
}

#detailsList dt {
  color: var(--muted);
}

#detailsList dd {
  margin: 0;
  font-weight: 600;
  overflow-wrap: anywhere;
}

#toasts {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: grid;
  gap: 8px;
  justify-items: center;
  z-index: 200;
}

.toast {
  background: #111b21;
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  max-width: 340px;
  overflow-wrap: anywhere;
}

.toast-error {
  background: var(--danger);
}

.hidden {
  display: none !important;
}