/* apps/embedded-systems/hex-decimal-converter/style.css */
.converter-page .tool-header {
  margin-bottom: 1.2rem;
}

.converter-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr 1fr;
}

.panel {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.panel h2 {
  margin: 0 0 0.8rem;
  font-size: 1.15rem;
}

.toggle-group {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.9rem;
}

.toggle-btn {
  border: 0;
  background: transparent;
  color: var(--text);
  padding: 0.55rem 0.9rem;
  font-weight: 700;
  cursor: pointer;
}

.toggle-btn.is-active {
  background: var(--accent-soft);
  color: var(--primary);
}

.field-group {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 0.8rem;
}

.field-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--muted);
}

.error-text {
  color: #d94848;
  font-size: 0.85rem;
}

.result-grid {
  display: grid;
  gap: 0.6rem;
}

.result-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 0.6rem;
  align-items: start;
}

.result-cell {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  justify-content: space-between;
}

.result-key {
  color: var(--muted);
  font-weight: 600;
}

.result-value {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  word-break: break-word;
}

.copy-btn {
  min-width: 82px;
  padding: 0.38rem 0.7rem;
}

.warn-box {
  margin-top: 0.8rem;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  border: 1px solid color-mix(in srgb, #f5b14c 50%, var(--border));
  background: color-mix(in srgb, #f5b14c 12%, var(--surface));
  color: var(--text);
}

.binary-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.binary-block {
  margin-top: 0.8rem;
  padding: 0.7rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  letter-spacing: 0.04em;
  flex: 1;
}

.history-table {
  width: 100%;
  border-collapse: collapse;
}

.history-table th,
.history-table td {
  border-bottom: 1px solid var(--border);
  padding: 0.5rem;
  text-align: left;
  font-size: 0.9rem;
}

.history-table tbody tr {
  cursor: pointer;
}

.history-table tbody tr:hover {
  background: var(--surface-muted);
}

.panel-actions {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 0.6rem;
}

.info-list {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.35rem;
}

@media (max-width: 900px) {
  .converter-grid {
    grid-template-columns: 1fr;
  }

  .result-row {
    grid-template-columns: 1fr;
  }

  .result-cell,
  .binary-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

.history-copy-btn {
  min-width: 76px;
  padding: 0.32rem 0.65rem;
}


/* Mobile resilience patch */
.panel { overflow-x: auto; }
.copy-btn,
.history-copy-btn { width: auto; max-width: 100%; }
.history-table { min-width: 720px; }

@media (max-width: 720px) {
  .panel-actions { justify-content: flex-start; flex-wrap: wrap; }
  .panel-actions .btn { width: auto; }
  .copy-btn,
  .history-copy-btn { align-self: flex-start; }
}

.warn-text { color:#b0701f; font-size:0.9rem; margin-top:0.4rem; }