/* 글자 수 세기 전용 보조 스타일 */

.layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 20px;
  align-items: start;
}

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

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.stat-card:hover { 
  transform: translateY(-2px); 
  border-color: var(--primary);
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 600;
}
.stat-value {
  font-size: 1.6rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--primary);
  line-height: 1;
}
.stat-sub {
  font-size: 0.72rem;
  color: var(--text-subtle);
  margin-top: 4px;
}

/* Editor Toolbar & Textarea */
.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-alt);
}
.btn-sm {
  padding: 6px 12px;
  font-size: 0.82rem;
  border-radius: var(--radius-sm);
}
.btn-success {
  background: var(--success);
  color: #fff;
}
.btn-success:hover {
  background: #059669;
}

#mainTextarea {
  width: 100%;
  min-height: 300px;
  padding: 18px;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.8;
  border: none;
  outline: none;
  background: var(--surface);
  color: var(--text-main);
  resize: vertical;
  display: block;
}
#mainTextarea::placeholder { color: var(--text-subtle); }

/* Byte mode row */
.byte-mode-row {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 12px 18px;
  border-top: 1px solid var(--border);
  background: var(--surface-alt);
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.byte-mode-row label { display: flex; align-items: center; gap: 5px; cursor: pointer; }
.byte-mode-row input[type=radio] { accent-color: var(--primary); }

/* Goal section */
.goal-section {
  padding: 14px 18px;
  border-top: 1px solid var(--border);
  background: var(--surface-alt);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.goal-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 600;
}
.goal-row label { color: var(--text-main); white-space: nowrap; }
.goal-row input[type=number] {
  width: 110px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  background: var(--surface);
  color: var(--text-main);
  outline: none;
}
.goal-row input[type=number]:focus { border-color: var(--primary); }
.progress-wrap { width: 100%; }
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--border);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--primary), var(--success));
  transition: width 0.3s;
}
.progress-label { font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; text-align: right; }

/* Utilities Grid */
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-alt);
}
.card-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
}
.card-body { padding: 16px; }

.util-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
@media (max-width: 500px) {
  .util-grid { grid-template-columns: 1fr; }
}
.util-btn {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--text-main);
  cursor: pointer;
  text-align: left;
  font-family: var(--font-sans);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s;
}
.util-btn:hover { 
  background: var(--primary-light); 
  color: var(--primary); 
  border-color: var(--primary); 
}

/* Issues Panel */
.sidebar { display: flex; flex-direction: column; gap: 16px; }

.issue-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--danger);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  min-width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  padding: 0 6px;
}
.issue-count-badge.warning { background: var(--warning); color: #000; }
.issue-count-badge.zero { background: var(--success); }

#issueList {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 400px;
  overflow-y: auto;
  padding: 4px;
}

.issue-item {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 0.84rem;
  border-left: 3.5px solid var(--danger);
  transition: box-shadow 0.15s;
}
.issue-item.warning { border-left-color: var(--warning); }
.issue-item:hover { box-shadow: var(--shadow-md); }
.issue-original {
  font-family: var(--font-mono);
  background: var(--danger-light);
  color: var(--danger);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.85rem;
}
.issue-item.warning .issue-original {
  background: var(--warning-light);
  color: var(--warning);
}
.issue-arrow { color: var(--text-muted); margin: 0 4px; }
.issue-replacement {
  font-family: var(--font-mono);
  background: var(--success-light);
  color: var(--success);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.85rem;
}
.issue-msg { color: var(--text-muted); margin-top: 5px; display: block; line-height: 1.4; }
.issue-actions { margin-top: 8px; }
.issue-fix-btn {
  font-size: 0.78rem;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary);
  cursor: pointer;
  font-weight: 700;
}
.issue-fix-btn:hover { background: var(--primary); color: #fff; }

.empty-state {
  text-align: center;
  padding: 36px 20px;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.empty-state .icon { font-size: 2.2rem; margin-bottom: 8px; display: block; }

/* Toast Notification */
#toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: #111827;
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  z-index: 999;
  white-space: nowrap;
}
#toast.show { transform: translateX(-50%) translateY(0); }

@media (max-width: 600px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}