/* SequenceInput Component Styles */

.mint-sequence-input {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

/* Dark --border-light equals --bg-card; row and band hairlines need --border-color there. */
:where(html.dark) .mint-sequence-input {
  --border-light: var(--border-color);
}

/* Field rules (1a / 1e). */
.mint-sequence-input:hover:not(:focus-within):not(.mint-sequence-input--error):not(.mint-sequence-input--disabled) {
  border-color: var(--_field-border-hover);
}

.mint-sequence-input:focus-within {
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring-soft);
}

.mint-sequence-input--error {
  border-color: var(--mint-error);
}

.mint-sequence-input--error:focus-within {
  border-color: var(--mint-error);
  box-shadow: var(--focus-ring-soft-error);
}

.mint-sequence-input--disabled {
  background-color: var(--bg-tertiary);
  color: var(--text-muted);
}

/* Toolbar */
.mint-sequence-input__toolbar {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.375rem 0.25rem 0.625rem;
  border-bottom: 1px solid var(--border-light);
}

/* Small ghost buttons. */
.mint-sequence-input__tool-btn {
  display: inline-flex;
  align-items: center;
  height: 1.5rem;
  padding: 0 0.5rem;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 400;
  border: none;
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-secondary-strong);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.mint-sequence-input__tool-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring-offset);
}

.mint-sequence-input__tool-btn:hover:not(:disabled) {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

.mint-sequence-input__tool-btn:disabled {
  opacity: var(--mint-disabled-opacity);
  cursor: not-allowed;
}

.mint-sequence-input__tool-sep {
  width: 1px;
  height: 0.875rem;
  background-color: var(--border-color);
  margin: 0 0.375rem;
}

/* Sequence type as plain mono text, not a badge. */
.mint-sequence-input__type-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-secondary-strong);
}

/* Editor area */
.mint-sequence-input__editor {
  position: relative;
}

.mint-sequence-input__textarea {
  display: block;
  box-sizing: border-box;
  width: 100%;
  resize: vertical;
  border: none;
  outline: none;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: transparent;
}

.mint-sequence-input__textarea::placeholder {
  color: var(--text-muted);
  font-family: var(--font-sans);
}

.mint-sequence-input__textarea:disabled {
  cursor: not-allowed;
  color: var(--text-muted);
}

/* Viewer (readonly mode) */
.mint-sequence-input__viewer {
  padding: 0.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.5;
  overflow-x: auto;
}

.mint-sequence-input__viewer-line {
  display: flex;
  padding: 0 0.75rem;
}

.mint-sequence-input__viewer-line:hover {
  background-color: var(--bg-hover);
}

.mint-sequence-input__line-number {
  width: 3rem;
  flex-shrink: 0;
  text-align: right;
  color: var(--text-muted);
  font-size: 0.6875rem;
  padding-right: 0.75rem;
  user-select: none;
}

.mint-sequence-input__line-content {
  white-space: pre;
  word-break: break-all;
}

/* Base coloring */
.mint-sequence-input__base--a {
  color: var(--mint-success);
}

.mint-sequence-input__base--t,
.mint-sequence-input__base--u {
  color: var(--mint-error);
}

.mint-sequence-input__base--g {
  color: var(--mint-warning);
}

.mint-sequence-input__base--c {
  color: var(--mint-info);
}

.mint-sequence-input__base--n {
  color: var(--text-muted);
}

/* Stats bar */
.mint-sequence-input__stats {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.375rem 0.625rem;
  border-top: 1px solid var(--border-light);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-secondary-strong);
}

.mint-sequence-input__stat-label {
  color: var(--text-secondary);
}

.mint-sequence-input__stat-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary-strong);
  margin-left: 0.25rem;
}

/* Problems (9c): icon shape + text; the count stays mono, the prose is sans. */
.mint-sequence-input__problem {
  display: inline-flex;
  align-items: center;
  gap: 0.3125rem;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--text-secondary-strong);
}

.mint-sequence-input__problem--error {
  color: var(--_ink-error);
}

.mint-sequence-input__problem-icon {
  flex-shrink: 0;
  width: 0.75rem;
  height: 0.75rem;
}

.mint-sequence-input__problem--warning .mint-sequence-input__problem-shape { fill: var(--mint-warning); }
.mint-sequence-input__problem--error .mint-sequence-input__problem-shape { fill: var(--mint-error); }

.mint-sequence-input__problem-mark {
  stroke: white;
  stroke-width: 1.6;
  stroke-linecap: round;
}