/* Text Compare — /text-compare */

.tc-layout {
  display: flex;
  justify-content: center;
  padding: var(--space-2xl) var(--space-md);
  min-height: calc(100vh - 60px);
}

/* #mainDiv centres its children; diffs have to read left. */
.tc-page {
  width: 100%;
  max-width: 1400px;
  text-align: left;
}

/* ---------------- Header ---------------- */

.tc-header {
  margin-bottom: var(--space-xl);
  text-align: center;
}

.tc-title {
  font-family: var(--font-primary);
  font-size: var(--font-size-3xl);
  color: var(--color-terminal-green);
  text-shadow: var(--glow-green);
  letter-spacing: 2px;
  margin-bottom: var(--space-md);
}

.tc-intro {
  font-family: 'Roboto Mono', monospace;
  font-size: var(--font-size-sm);
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 72ch;
  margin: 0 auto;
}

/* ---------------- Input columns ---------------- */

.tc-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 860px) {
  .tc-columns { grid-template-columns: 1fr; }
}

.tc-panel {
  border: var(--border-width-md) solid var(--color-cyberpunk-pink);
  border-radius: var(--border-radius-sm);
  background: var(--color-bg-dark);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: var(--transition-fast);
}

/* File hovering over the column. */
.tc-panel--over {
  border-color: var(--color-terminal-green);
  box-shadow: var(--glow-green);
}

.tc-panel-head {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* The custom column name. Reads as a heading until you click it. */
.tc-name {
  flex: 1 1 140px;
  min-width: 0;
  padding: var(--space-xs) var(--space-sm);
  background: transparent;
  border: var(--border-width-sm) solid transparent;
  border-bottom-color: var(--color-neutral-600);
  border-radius: var(--border-radius-none);
  color: var(--color-terminal-green);
  font-family: var(--font-primary);
  font-size: var(--font-size-lg);
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: var(--transition-fast);
}

.tc-name::placeholder { color: var(--color-neutral-500); }

.tc-name:hover { border-bottom-color: var(--color-text-secondary); }

.tc-name:focus {
  outline: none;
  border-color: var(--color-terminal-green);
  background: var(--color-bg-black);
}

.tc-panel-tools {
  display: flex;
  gap: var(--space-xs);
  flex-shrink: 0;
}

.tc-textarea {
  width: 100%;
  min-height: 320px;
  resize: vertical;
  padding: var(--space-md);
  background: var(--color-bg-black);
  border: var(--border-width-sm) solid var(--color-neutral-700);
  border-radius: var(--border-radius-sm);
  color: var(--color-text-primary);
  font-family: 'Roboto Mono', monospace;
  font-size: var(--font-size-sm);
  line-height: 1.6;
  box-sizing: border-box;
  white-space: pre;
  overflow: auto;
  tab-size: 4;
}

.tc-textarea:focus {
  outline: none;
  border-color: var(--color-terminal-green);
}

.tc-textarea::placeholder {
  color: var(--color-text-muted);
  white-space: pre-wrap;
}

.tc-panel-foot {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-sm);
  font-family: 'Roboto Mono', monospace;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.tc-drop-hint { letter-spacing: 1px; }

.tc-panel--over .tc-drop-hint { color: var(--color-terminal-green); }

/* ---------------- Buttons ---------------- */

.tc-btn {
  padding: var(--btn-padding-y) var(--btn-padding-x);
  border: var(--border-width-md) solid;
  border-radius: var(--border-radius-sm);
  background: transparent;
  font-family: var(--font-primary);
  font-size: var(--font-size-md);
  letter-spacing: 1px;
  cursor: pointer;
  transition: var(--transition-normal);
  text-transform: uppercase;
}

.tc-btn--sm {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
  border-width: var(--border-width-sm);
}

.tc-btn--lg {
  padding: var(--btn-padding-lg-y) var(--btn-padding-lg-x);
  font-size: var(--font-size-lg);
  letter-spacing: 3px;
}

.tc-btn--primary {
  border-color: var(--color-terminal-green);
  color: var(--color-terminal-green);
  box-shadow: var(--shadow-brutal-sm);
}

.tc-btn--secondary {
  border-color: var(--color-cyberpunk-pink);
  color: var(--color-cyberpunk-pink);
  box-shadow: var(--shadow-brutal-pink-sm);
}

.tc-btn--ghost {
  border-color: var(--color-text-muted);
  color: var(--color-text-muted);
}

.tc-btn:hover:not(:disabled) {
  transform: translate(2px, 2px);
  box-shadow: none;
}

.tc-btn--ghost:hover:not(:disabled) {
  color: var(--color-text-secondary);
  border-color: var(--color-text-secondary);
}

.tc-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---------------- Controls ---------------- */

.tc-controls {
  margin: var(--space-lg) 0 var(--space-2xl);
  text-align: center;
}

.tc-options {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-lg);
}

/* The box itself is drawn by .checkbox-input in components/forms.css — the
   global reset sets appearance:none on every input, so a bare checkbox is
   invisible. This only sets the label typography around it. */
.tc-check {
  font-family: 'Roboto Mono', monospace;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.tc-check:hover { color: var(--color-terminal-green); }

.tc-check .checkbox-input {
  width: 16px;
  height: 16px;
  border-width: var(--border-width-sm);
  /* The shared 8px radius rounds a 16px box into a radio button. */
  border-radius: 3px;
}

.tc-check .checkbox-input:checked::after { font-size: 11px; }

.tc-select-wrap {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.tc-select-label {
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  letter-spacing: 2px;
  color: var(--color-text-muted);
}

.tc-select {
  padding: var(--space-xs) var(--space-xl) var(--space-xs) var(--space-sm);
  background-image: linear-gradient(45deg, transparent 50%, var(--color-terminal-green) 50%),
                    linear-gradient(135deg, var(--color-terminal-green) 50%, transparent 50%);
  background-position: right 14px center, right 9px center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  background-color: var(--color-bg-black);
  border: var(--border-width-sm) solid var(--color-cyberpunk-pink);
  border-radius: var(--border-radius-sm);
  color: var(--color-text-primary);
  font-family: 'Roboto Mono', monospace;
  font-size: var(--font-size-sm);
  cursor: pointer;
}

.tc-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-md);
}

.tc-shortcut {
  margin-top: var(--space-md);
  font-family: 'Roboto Mono', monospace;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.tc-shortcut kbd {
  border: 1px solid var(--color-neutral-600);
  border-radius: 3px;
  padding: 0 4px;
  font-family: inherit;
}

.tc-error {
  margin-top: var(--space-md);
  font-family: 'Roboto Mono', monospace;
  font-size: var(--font-size-sm);
  color: var(--color-text-error);
}

.hidden { display: none !important; }

/* ---------------- Summary ---------------- */

.tc-summary { margin-bottom: var(--space-lg); }

.tc-verdict {
  font-family: var(--font-primary);
  font-size: var(--font-size-2xl);
  letter-spacing: 3px;
  text-align: center;
  padding: var(--space-md);
  border: var(--border-width-md) solid;
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--space-lg);
}

.tc-verdict--same {
  color: var(--color-text-success);
  border-color: var(--color-text-success);
  text-shadow: 0 0 10px rgba(169, 220, 118, 0.5);
}

.tc-verdict--diff {
  color: var(--color-accent-yellow);
  border-color: var(--color-accent-yellow);
  text-shadow: 0 0 10px rgba(255, 216, 102, 0.4);
}

.tc-note {
  font-family: 'Roboto Mono', monospace;
  font-size: var(--font-size-xs);
  color: var(--color-accent-orange);
  text-align: center;
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.tc-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-md);
}

.tc-stat {
  border: var(--border-width-sm) solid var(--color-neutral-700);
  border-radius: var(--border-radius-sm);
  background: var(--color-bg-dark);
  padding: var(--space-md);
  text-align: center;
}

.tc-stat--del { border-color: rgba(255, 97, 136, 0.6); }
.tc-stat--ins { border-color: rgba(169, 220, 118, 0.6); }
.tc-stat--chg { border-color: rgba(255, 216, 102, 0.6); }

.tc-stat-label {
  font-family: var(--font-primary);
  font-size: var(--font-size-xs);
  letter-spacing: 2px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.tc-stat-value {
  font-family: var(--font-primary);
  font-size: var(--font-size-xl);
  color: var(--color-terminal-green);
  line-height: 1.1;
}

.tc-stat--del .tc-stat-value { color: var(--color-text-error); }
.tc-stat--ins .tc-stat-value { color: var(--color-text-success); }
.tc-stat--chg .tc-stat-value { color: var(--color-accent-yellow); }

.tc-stat-sub {
  margin-top: var(--space-xs);
  font-family: 'Roboto Mono', monospace;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  word-break: break-word;
}

/* ---------------- Results bar ---------------- */

.tc-results-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-top: var(--border-width-sm) solid var(--color-neutral-700);
  border-bottom: var(--border-width-sm) solid var(--color-neutral-700);
  margin-bottom: var(--space-md);
}

.tc-view-toggle { display: flex; }

.tc-view-btn {
  padding: var(--space-xs) var(--space-md);
  background: transparent;
  border: var(--border-width-sm) solid var(--color-text-muted);
  color: var(--color-text-muted);
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  letter-spacing: 2px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.tc-view-btn:first-child { border-radius: var(--border-radius-sm) 0 0 var(--border-radius-sm); }
.tc-view-btn:last-child { border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0; border-left: none; }

.tc-view-btn:hover { color: var(--color-text-secondary); }

.tc-view-btn--active {
  color: var(--color-terminal-green);
  border-color: var(--color-terminal-green);
}

.tc-check--inline { font-size: var(--font-size-xs); }

.tc-legend {
  display: flex;
  gap: var(--space-md);
  margin-left: auto;
  font-family: 'Roboto Mono', monospace;
  font-size: var(--font-size-xs);
}

.tc-legend-item { padding: 2px var(--space-sm); border-radius: 3px; }
.tc-legend-item--del { background: rgba(255, 97, 136, 0.22); color: var(--color-text-error); }
.tc-legend-item--ins { background: rgba(169, 220, 118, 0.22); color: var(--color-text-success); }
.tc-legend-item--chg { background: rgba(255, 216, 102, 0.22); color: var(--color-accent-yellow); }

.tc-export { display: flex; gap: var(--space-xs); }

/* ---------------- Diff, shared ---------------- */

.tc-diff-host {
  border: var(--border-width-sm) solid var(--color-neutral-700);
  border-radius: var(--border-radius-sm);
  background: var(--color-bg-black);
  overflow-x: auto;
}

/* Lines wrap rather than forcing a horizontal scroll: this compares prose as
   often as code, and on a phone a max-content diff is all sideways dragging.
   .tc-text keeps the indent, so a wrapped line still clears the gutters. */
.tc-diff {
  font-family: 'Roboto Mono', monospace;
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

/* Line numbers. Not selectable, so copying the diff copies the text. */
.tc-num {
  flex: 0 0 3.5em;
  padding-right: var(--space-sm);
  text-align: right;
  color: var(--color-neutral-600);
  user-select: none;
  -webkit-user-select: none;
}

.tc-text {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  flex: 1 1 auto;
  min-height: 1.6em;
}

/* Inline indicators — the actual words that moved inside a changed line. */
.tc-mark-del {
  background: rgba(255, 97, 136, 0.3);
  color: #ffb3c6;
  text-decoration: line-through;
  border-radius: 2px;
}

.tc-mark-ins {
  background: rgba(169, 220, 118, 0.3);
  color: #d7f5b8;
  border-radius: 2px;
}

/* Folded run of unchanged lines. */
.tc-fold {
  display: block;
  width: 100%;
  padding: var(--space-xs) var(--space-md);
  background: rgba(120, 220, 232, 0.07);
  border: none;
  border-top: 1px dashed var(--color-neutral-600);
  border-bottom: 1px dashed var(--color-neutral-600);
  color: var(--color-accent-cyan);
  font-family: 'Roboto Mono', monospace;
  font-size: var(--font-size-xs);
  text-align: center;
  cursor: pointer;
  letter-spacing: 1px;
}

.tc-fold:hover { background: rgba(120, 220, 232, 0.16); }

/* ---------------- Unified (inline) view ---------------- */

.tc-row {
  display: flex;
  align-items: flex-start;
  padding: 0 var(--space-sm);
}

.tc-sign {
  flex: 0 0 1.5em;
  text-align: center;
  user-select: none;
  -webkit-user-select: none;
}

.tc-row--eq { color: var(--color-neutral-400); }
.tc-row--eq .tc-sign { color: var(--color-neutral-700); }

.tc-row--del {
  background: rgba(255, 97, 136, 0.12);
  color: var(--color-text-error);
  box-shadow: inset 3px 0 0 var(--color-text-error);
}

.tc-row--ins {
  background: rgba(169, 220, 118, 0.12);
  color: var(--color-text-success);
  box-shadow: inset 3px 0 0 var(--color-text-success);
}

/* ---------------- Side-by-side view ---------------- */

.tc-split-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: sticky;
  top: 0;
  z-index: var(--z-base);
  background: var(--color-bg-dark);
  border-bottom: var(--border-width-sm) solid var(--color-neutral-700);
}

.tc-split-head-cell {
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-primary);
  font-size: var(--font-size-md);
  letter-spacing: 2px;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.tc-split-head-cell--a { color: var(--color-text-error); }
.tc-split-head-cell--b {
  color: var(--color-text-success);
  border-left: var(--border-width-sm) solid var(--color-neutral-700);
}

.tc-srow {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.tc-cell {
  display: flex;
  align-items: flex-start;
  padding: 0 var(--space-sm);
  min-width: 0;
}

.tc-cell:last-child { border-left: var(--border-width-sm) solid var(--color-neutral-700); }

.tc-cell--eq { color: var(--color-neutral-400); }

.tc-cell--del {
  background: rgba(255, 97, 136, 0.12);
  color: var(--color-text-error);
}

.tc-cell--ins {
  background: rgba(169, 220, 118, 0.12);
  color: var(--color-text-success);
}

/* Filler opposite a line that only exists on one side. */
.tc-cell--blank {
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 6px,
    rgba(108, 106, 108, 0.14) 6px,
    rgba(108, 106, 108, 0.14) 12px
  );
}

.tc-diff--split .tc-fold { grid-column: 1 / -1; }

/* Side-by-side needs the whole width; on a phone it becomes unreadable, so the
   inline view is the one that survives. */
@media (max-width: 700px) {
  .tc-split-head, .tc-srow { grid-template-columns: 1fr; }
  .tc-cell:last-child { border-left: none; border-top: 1px dashed var(--color-neutral-700); }
  .tc-split-head-cell--b { border-left: none; }
  .tc-cell--blank { display: none; }
}

/* ---------------- Footer note ---------------- */

.tc-attrib {
  margin-top: var(--space-xl);
  font-family: 'Roboto Mono', monospace;
  font-size: var(--font-size-xs);
  line-height: 1.7;
  color: var(--color-text-muted);
  text-align: center;
}

.tc-attrib a { color: var(--color-text-secondary); }