/* ========== URL Encode Tool Page ========== */
.tool-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

.tool-header {
  text-align: center;
  margin-bottom: 24px;
}

.tool-header h1 {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-heading);
  margin-bottom: 8px;
}

.tool-header .tool-desc {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Direction Buttons */
.direction-bar {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 12px;
}

.dir-btn {
  padding: 12px 32px;
  font-size: 16px;
  font-weight: 700;
  border: 2px solid var(--color-border);
  border-radius: 10px;
  background: #fff;
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.2s;
  min-width: 140px;
}

.dir-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.dir-btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* Encoding Mode Tabs */
.mode-bar {
  display: flex;
  gap: 4px;
  justify-content: center;
  margin-bottom: 12px;
  padding: 4px;
  background: #f3f4f6;
  border-radius: 8px;
}

.mode-tab {
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 600;
  background: transparent;
  color: #6b7280;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.mode-tab:hover { color: #374151; background: rgba(0,0,0,0.03); }
.mode-tab.active { background: #fff; color: var(--color-primary); box-shadow: 0 1px 3px rgba(0,0,0,0.12); }

/* Options bar */
.options-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 16px;
  padding: 12px 20px;
  background: var(--color-bg-card);
  border-radius: 10px;
  border: 1px solid var(--color-border);
}

.option-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
}

.option-toggle input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.option-toggle code {
  background: #f3f4f6;
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 12px;
  color: #be185d;
}

/* Toolbar */
.tool-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 16px;
  padding: 14px 20px;
  background: var(--color-bg-card);
  border-radius: 10px;
  border: 1px solid var(--color-border);
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.tool-btn-primary { background: var(--color-primary); color: #fff; }
.tool-btn-primary:hover { background: #1d4ed8; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(37,99,235,0.3); }
.tool-btn-secondary { background: #10b981; color: #fff; }
.tool-btn-secondary:hover { background: #059669; }
.tool-btn-outline { background: #fff; color: var(--color-text); border: 1px solid var(--color-border); }
.tool-btn-outline:hover { background: var(--color-bg-hover); border-color: var(--color-primary); }
.tool-btn-purple { background: #8b5cf6; color: #fff; }
.tool-btn-purple:hover { background: #7c3aed; }
.tool-btn-danger { background: #ef4444; color: #fff; }
.tool-btn-danger:hover { background: #dc2626; }

/* Stats bar */
.stats-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding: 10px 16px;
  background: var(--color-bg-card);
  border-radius: 8px;
  border: 1px solid var(--color-border);
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--color-text);
  align-items: center;
}

.stats-bar .stat-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.stats-bar .stat-label { color: var(--color-muted); }
.stats-bar .stat-value { font-weight: 600; font-family: 'Consolas','Monaco','Courier New',monospace; }

.stat-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}
.stat-badge-expand { background: #fef3c7; color: #92400e; }
.stat-badge-same { background: #dbeafe; color: #1e40af; }
.stat-badge-shrink { background: #d1fae5; color: #065f46; }

/* Status box */
.status-box {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 14px;
  display: none;
}
.status-box.show { display: block; }
.status-success { background: #f0fdf4; border: 1px solid #bbf7d0; color: #16a34a; }
.status-error { background: #fef2f2; border: 1px solid #fecaca; color: #dc2626; }
.status-info { background: #eff6ff; border: 1px solid #bfdbfe; color: #1d4ed8; }
.status-warning { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; }

/* Editor */
.tool-editor {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.editor-panel {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
}

.editor-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
}

.editor-panel-header h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-heading);
}

.editor-panel-header .panel-actions {
  display: flex;
  gap: 6px;
}

.panel-btn {
  padding: 5px 10px;
  font-size: 12px;
  border: 1px solid var(--color-border);
  border-radius: 5px;
  background: #fff;
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.2s;
}
.panel-btn:hover { background: var(--color-bg-hover); border-color: var(--color-primary); }

.editor-panel textarea {
  width: 100%;
  height: 280px;
  padding: 16px;
  border: none;
  font-family: 'Consolas','Monaco','Courier New',monospace;
  font-size: 14px;
  line-height: 1.6;
  resize: none;
  background: #1e1e2e;
  color: #cdd6f4;
  box-sizing: border-box;
}

.editor-panel textarea:focus { outline: none; }
.editor-panel textarea.output-area { background: #1e1e2e; color: #a6e3a1; }
.editor-panel textarea.output-area.error-output { color: #f38ba8; }
.editor-panel textarea::placeholder { color: #6c7086; }

/* ===== Character Breakdown ===== */
.breakdown-section {
  margin-bottom: 20px;
}

.breakdown-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-heading);
  transition: all 0.2s;
  user-select: none;
}

.breakdown-toggle:hover { border-color: var(--color-primary); }

.breakdown-toggle .arrow {
  transition: transform 0.2s;
  font-size: 12px;
}

.breakdown-toggle.open .arrow { transform: rotate(90deg); }

.breakdown-content {
  display: none;
  padding: 16px;
  background: #fafafa;
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 8px 8px;
  max-height: 400px;
  overflow-y: auto;
  font-family: 'Consolas','Monaco','Courier New',monospace;
  font-size: 13px;
  line-height: 1.8;
}

.breakdown-content.show { display: block; }

.break-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 3px 0;
  border-bottom: 1px solid #f0f0f0;
}

.break-char {
  display: inline-block;
  min-width: 30px;
  font-weight: 700;
  color: var(--color-heading);
}

.break-arrow { color: #6b7280; }

.break-result {
  color: var(--color-primary);
  word-break: break-all;
}

.break-detail {
  color: #6b7280;
  font-size: 11px;
  margin-left: auto;
  white-space: nowrap;
}

.break-multi {
  background: #fef3c7;
  border-radius: 3px;
  padding: 0 4px;
}

/* ===== Reference Table ===== */
.ref-section {
  margin-bottom: 20px;
}

.ref-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-heading);
  transition: all 0.2s;
  user-select: none;
}

.ref-toggle:hover { border-color: var(--color-primary); }
.ref-toggle .arrow { transition: transform 0.2s; font-size: 12px; }
.ref-toggle.open .arrow { transform: rotate(90deg); }

.ref-content {
  display: none;
  padding: 16px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 8px 8px;
}

.ref-content.show { display: block; }

.ref-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  font-family: 'Consolas','Monaco','Courier New',monospace;
}

.ref-table th, .ref-table td {
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  text-align: center;
}

.ref-table th {
  background: var(--color-bg-card);
  font-weight: 600;
  color: var(--color-heading);
}

.ref-table td { color: var(--color-text); }
.ref-table .ref-char { font-weight: 700; font-size: 15px; }
.ref-table tr:hover td { background: var(--color-bg-hover); cursor: pointer; }

/* Info section */
.tool-info {
  margin-top: 24px;
  padding: 24px;
  background: var(--color-bg-card);
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.tool-info h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 16px;
}

.tool-info h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-heading);
  margin: 18px 0 10px;
}

.tool-info p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 12px;
}

.tool-info ul {
  margin: 0 0 14px 24px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
}

.tool-info li { margin-bottom: 5px; }
.tool-info code {
  background: #f3f4f6;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-family: 'Consolas','Monaco','Courier New',monospace;
  color: #be185d;
}

/* Responsive */
@media (max-width: 900px) {
  .tool-editor { grid-template-columns: 1fr; }
  .editor-panel textarea { height: 200px; }
}

@media (max-width: 600px) {
  .tool-container { padding: 16px; }
  .tool-header h1 { font-size: 24px; }
  .dir-btn { padding: 10px 20px; font-size: 14px; min-width: 100px; }
  .tool-toolbar, .options-bar { padding: 10px; gap: 8px; }
  .tool-btn { padding: 8px 14px; font-size: 13px; }
  .editor-panel textarea { height: 150px; }
  .stats-bar { gap: 8px; font-size: 13px; }
}