/* ============================================================
   INFO PANEL — Right sidebar with tabs
   Tab bar, Info / Steps / Code content areas,
   Complexity grid, Step list, Code block with syntax colors,
   Modal overlay and form elements
   ============================================================ */

/* ── Tab Bar ── */
.info-tabs {
  display:     flex;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.info-tab {
  flex:           1;
  padding:        10px 4px;
  background:     none;
  border:         none;
  color:          var(--text-muted);
  font-family:    var(--font-mono);
  font-size:      10px;
  font-weight:    700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  cursor:         pointer;
  transition:     all var(--transition);
  border-bottom:  2px solid transparent;
}

.info-tab:hover { color: var(--text-primary); background: var(--bg-2); }
.info-tab.active { color: var(--accent-cyan); border-bottom-color: var(--accent-cyan); }

/* ── Tab Content Panes ── */
.info-content        { display: none; padding: 16px; }
.info-content.active { display: block; }

/* ── Info Sections ── */
.info-section { margin-bottom: 16px; }

.info-section-title {
  font-size:      10px;
  font-weight:    700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color:          var(--text-muted);
  margin-bottom:  6px;
  display:        flex;
  align-items:    center;
  gap:            4px;
}

/* Decorative divider line after title */
.info-section-title::after {
  content:    '';
  flex:       1;
  height:     1px;
  background: var(--border);
}

.info-text { color: var(--text-secondary); font-size: 12px; line-height: 1.7; }

/* ── Complexity Grid ── */
.complexity-grid {
  display:               grid;
  grid-template-columns: 1fr 1fr;
  gap:                   6px;
}

.complexity-item {
  background:    var(--bg-2);
  border:        1px solid var(--border);
  border-radius: var(--radius);
  padding:       8px;
}

.complexity-item .label { font-size: 10px; color: var(--text-muted); margin-bottom: 2px; }
.complexity-item .value { font-size: 13px; font-weight: 700; color: var(--accent-cyan); }

/* Colour-coded complexity values */
.complexity-item .value.red    { color: var(--accent-orange); }
.complexity-item .value.yellow { color: var(--accent-yellow); }
.complexity-item .value.green  { color: var(--accent-green); }

/* ── Steps List ── */
.steps-list {
  display:        flex;
  flex-direction: column;
  gap:            6px;
}

.step-item {
  display:       flex;
  gap:           10px;
  padding:       8px;
  border-radius: var(--radius);
  background:    var(--bg-2);
  border:        1px solid var(--border);
  transition:    all 0.2s;
}

.step-item.active-step {
  border-color: var(--accent-cyan);
  background:   rgba(57, 208, 216, 0.05);
}

.step-num {
  width:           20px;
  height:          20px;
  border-radius:   50%;
  background:      var(--bg-3);
  border:          1px solid var(--border);
  display:         flex;
  align-items:     center;
  justify-content: center;
  font-size:       10px;
  font-weight:     700;
  flex-shrink:     0;
  color:           var(--text-muted);
}

.step-item.active-step .step-num {
  background:   var(--accent-cyan);
  border-color: var(--accent-cyan);
  color:        #000;
}

.step-text { font-size: 11px; color: var(--text-secondary); line-height: 1.6; }

/* ── Code Block ── */
.code-block {
  background:    var(--bg-0);
  border:        1px solid var(--border);
  border-radius: var(--radius);
  overflow:      auto;
  font-family:   var(--font-mono);
  font-size:     11px;
  line-height:   1.8;
}

.code-line {
  padding:     0 12px;
  color:       var(--text-secondary);
  white-space: pre;
  transition:  all 0.15s;
}

.code-line.highlight {
  background:   rgba(57, 208, 216, 0.12);
  color:        var(--text-primary);
  border-left:  2px solid var(--accent-cyan);
}

/* Syntax token colours */
.code-line .kw  { color: var(--accent-purple); }
.code-line .fn  { color: var(--accent-blue); }
.code-line .num { color: var(--accent-orange); }
.code-line .cm  { color: var(--text-muted); font-style: italic; }
.code-line .str { color: var(--accent-green); }

/* ── Modal Overlay ── */
.modal-overlay {
  position:        fixed;
  inset:           0;
  background:      rgba(0, 0, 0, 0.7);
  z-index:         100;
  display:         none;
  align-items:     center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.modal-overlay.open { display: flex; }

.modal {
  background:    var(--bg-1);
  border:        1px solid var(--border);
  border-radius: 10px;
  padding:       24px;
  width:         460px;
  max-width:     90vw;
  box-shadow:    0 24px 64px rgba(0, 0, 0, 0.5);
}

.modal-title {
  font-family:    var(--font-display);
  font-size:      22px;
  letter-spacing: 1px;
  margin-bottom:  16px;
  color:          var(--text-primary);
}

/* ── Form Elements ── */
.form-group { margin-bottom: 12px; }

.form-label {
  display:        block;
  font-size:      11px;
  color:          var(--text-muted);
  margin-bottom:  4px;
  font-weight:    700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input {
  width:         100%;
  padding:       8px 12px;
  background:    var(--bg-2);
  border:        1px solid var(--border);
  border-radius: var(--radius);
  color:         var(--text-primary);
  font-family:   var(--font-mono);
  font-size:     13px;
  outline:       none;
  transition:    border-color var(--transition);
}

.form-input:focus { border-color: var(--accent-cyan); }

.modal-actions {
  display:         flex;
  gap:             8px;
  margin-top:      16px;
  justify-content: flex-end;
}