.browser-tool .browser-layout,
.browser-tool .browser-layout * {
  box-sizing: border-box;
}

.browser-tool .browser-layout {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  row-gap: 16px;
}

.browser-tool .browser-layout > [class*="col-"] {
  display: flex;
  min-width: 0;
}

.browser-summary-panel,
.browser-ua-panel,
.browser-detail-panel,
.browser-font-panel {
  width: 100%;
  min-width: 0;
}

.browser-panel-header {
  gap: 12px;
  min-height: 44px;
  padding-top: 6px;
  padding-bottom: 6px;
}

.browser-panel-header > span:first-child {
  flex: 1;
  min-width: 0;
}

.browser-panel-header i {
  margin-right: 6px;
}

.browser-summary-body,
.browser-ua-body {
  gap: 14px;
  min-width: 0;
}

.browser-identity-card {
  display: grid;
  gap: 6px;
  min-height: 94px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.browser-identity-card strong {
  min-width: 0;
  overflow: hidden;
  color: var(--text);
  font-size: 21px;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.browser-identity-card span {
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.45;
}

.browser-signal-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.browser-signal-grid > div {
  display: grid;
  gap: 3px;
  min-width: 0;
  padding: 12px 14px;
  border-right: 1px solid var(--border);
}

.browser-signal-grid > div:last-child {
  border-right: 0;
}

.browser-signal-grid strong {
  min-width: 0;
  overflow: hidden;
  color: var(--text);
  font-size: 16px;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.browser-signal-grid span {
  color: var(--text-2);
  font-size: 12.5px;
  line-height: 1.35;
}

.browser-status {
  padding: 10px 12px;
  border: 1px solid rgba(22, 163, 74, .28);
  border-radius: var(--radius);
  background: var(--success-soft);
  color: var(--success);
  font-size: 13.5px;
  line-height: 1.45;
}

.browser-status.is-error {
  border-color: #fecaca;
  background: var(--danger-soft);
  color: var(--danger);
}

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

.browser-actions .btn,
#browser-copy-ua,
#browser-toggle-fonts,
#browser-refresh {
  justify-content: center;
  white-space: nowrap;
}

.browser-ua-textarea {
  min-height: 142px;
  resize: vertical;
  font-family: var(--mono, ui-monospace, SFMono-Regular, Menlo, Consolas, monospace);
  font-size: 13px;
  line-height: 1.55;
}

.browser-privacy-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-soft);
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.45;
}

.browser-privacy-note i {
  margin-top: 2px;
  color: var(--success);
}

.browser-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.browser-detail-list,
.browser-feature-list {
  gap: 0;
  padding: 0;
}

.browser-detail-row,
.browser-feature-item {
  display: grid;
  grid-template-columns: minmax(110px, .75fr) minmax(0, 1fr);
  gap: 12px;
  min-width: 0;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-size: 13.5px;
  line-height: 1.4;
}

.browser-detail-row:last-child,
.browser-feature-item:last-child {
  border-bottom: 0;
}

.browser-detail-row span {
  color: var(--text-2);
  font-size: 12.5px;
}

.browser-detail-row strong {
  min-width: 0;
  overflow-wrap: anywhere;
  font-weight: 650;
}

.browser-feature-item {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.browser-feature-item div {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.browser-feature-item strong {
  min-width: 0;
  overflow: hidden;
  color: var(--text);
  font-size: 13.5px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.browser-feature-item span:not(.browser-feature-status) {
  color: var(--text-2);
  font-size: 12.5px;
  line-height: 1.35;
}

.browser-feature-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 94px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--text-2);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
}

.browser-feature-status.is-supported {
  border-color: rgba(22, 163, 74, .28);
  background: var(--success-soft);
  color: var(--success);
}

.browser-feature-status.is-unavailable {
  border-color: #fecaca;
  background: var(--danger-soft);
  color: var(--danger);
}

.browser-feature-status.is-limited {
  border-color: rgba(217, 119, 6, .26);
  background: var(--warning-soft);
  color: var(--warning);
}

.browser-font-panel {
  margin-top: 16px;
}

.browser-font-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
}

.browser-font-chip {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  max-width: 100%;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-soft);
  color: var(--text);
  font-size: 13.5px;
  line-height: 1.3;
}

.browser-font-chip.is-muted {
  color: var(--text-2);
}

:root[data-theme="dark"] .browser-status {
  border-color: #14532d;
  background: rgba(20, 83, 45, .24);
}

:root[data-theme="dark"] .browser-status.is-error {
  border-color: #7f1d1d;
  background: rgba(127, 29, 29, .18);
}

@media (max-width: 991px) {
  .browser-detail-grid {
    grid-template-columns: 1fr;
  }

  .browser-signal-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .browser-signal-grid > div:nth-child(2) {
    border-right: 0;
  }

  .browser-signal-grid > div:nth-child(-n+2) {
    border-bottom: 1px solid var(--border);
  }
}

@media (max-width: 640px) {
  .browser-tool .form-control-group-body {
    padding: 14px;
  }

  .browser-panel-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .browser-panel-header > span:first-child {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .browser-summary-panel .browser-panel-header,
  .browser-font-panel .browser-panel-header {
    grid-template-columns: 1fr;
  }

  .browser-summary-panel .browser-panel-header .btn,
  .browser-font-panel .browser-panel-header .btn {
    width: 100%;
  }

  .browser-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .browser-actions .btn {
    width: 100%;
  }

  .browser-signal-grid,
  .browser-detail-row {
    grid-template-columns: 1fr;
  }

  .browser-signal-grid > div {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .browser-signal-grid > div:last-child {
    border-bottom: 0;
  }

  .browser-detail-row {
    gap: 4px;
  }

  .browser-feature-status {
    min-width: 82px;
  }
}