.data-section { padding: 15px; border-bottom: 1px solid var(--border-lighter); display: flex; flex-direction: column; gap: 8px; }
.data-section.flex-grow { flex: 1; min-height: 0; border-radius: 0 0 12px 12px; overflow: visible; position: relative; z-index: 1; }

.section-header { display: flex; justify-content: space-between; align-items: center; }
.label-group { display: flex; align-items: center; gap: 8px; }
.label, .section-header .label { font-size: 0.85rem; font-weight: 700; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; }

.data-input { background: var(--bg-input); border: 1px solid var(--border-light); color: var(--text-main); font-family: 'Roboto Mono', monospace; font-size: 0.85rem; padding: 8px 10px; border-radius: 6px; width: 100%; box-sizing: border-box; outline: none; transition: border-color 0.2s; resize: none; line-height: 1.4; }
.data-input:focus { border-color: var(--primary); background: var(--bg-header-tabs); }
.data-input.full-height { flex: 1; white-space: pre-wrap; overflow-y: auto; background: var(--bg-input); }
textarea.data-input { height: 78px; padding-bottom: 12px; overflow: hidden; }

.btn-icon-small { position: relative; overflow: visible; background: transparent; border: none; color: var(--text-dim); cursor: pointer; padding: 4px; border-radius: 4px; transition: all 0.2s; display: flex; }
.btn-icon-small:hover { color: var(--text-pure); background: var(--border-light); }
.btn-icon-small svg { width: 20px; height: 20px; }

.copy-feedback { position: absolute; bottom: 110%; left: 50%; transform: translateX(-50%) translateY(5px); background: rgba(var(--bg-base-rgb), 0.95); border: 1px solid var(--border-light); color: var(--text-main); padding: 4px 10px; border-radius: 6px; font-size: 0.75rem; font-weight: 500; pointer-events: none; opacity: 0; transition: all 0.2s ease; white-space: nowrap; z-index: 200; box-shadow: 0 4px 12px rgba(0,0,0,0.3); }
.copy-feedback.show { opacity: 1; transform: translateX(-50%) translateY(-2px); }

.tooltip-container { position: relative; display: flex; align-items: center; cursor: help; z-index: var(--z-dropdown); }
.info-icon { display: flex; justify-content: center; align-items: center; width: 16px; height: 16px; border-radius: 50%; border: 1px solid var(--text-dim); color: var(--text-dim); font-size: 10px; font-weight: bold; font-family: serif; }
.tooltip-text { visibility: hidden; width: 240px; background-color: var(--bg-panel); color: var(--text-pure); border-radius: 6px; padding: 12px; position: absolute; top: 135%; left: -10px; opacity: 0; transition: opacity 0.2s, transform 0.2s; font-size: 0.75rem; line-height: 1.4; box-shadow: 0 10px 25px rgba(0,0,0,0.9); border: 1px solid var(--border-light); pointer-events: none; z-index: var(--z-tooltip); }
.tooltip-text::after { content: ""; position: absolute; bottom: 100%; left: 18px; margin-left: -5px; border-width: 5px; border-style: solid; border-color: transparent transparent var(--bg-panel) transparent; }
.tooltip-container:hover .tooltip-text { visibility: visible; opacity: 1; transform: translateY(5px); }

.context-menu { position: fixed; z-index: var(--z-tooltip); background: var(--bg-panel); border: 1px solid var(--border-light); border-radius: 6px; box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5); padding: 4px 0; min-width: 200px; font-family: 'Segoe UI', sans-serif; font-size: 0.9rem; color: var(--text-pure); }
.menu-item { padding: 8px 12px; cursor: pointer; display: flex; align-items: center; gap: 10px; transition: background 0.1s; }
.menu-item:hover { background: var(--border-light); }
.menu-item .icon { font-size: 1.1em; width: 20px; text-align: center; color: var(--text-dim); }
.menu-item.disabled { color: var(--text-dim); cursor: not-allowed; pointer-events: none; }

.panel-error-bar { position: absolute; bottom: 0; left: 0; right: 0; margin: 12px; z-index: 100; background: rgba(var(--danger-rgb), 0.15); border: 1px solid rgba(var(--danger-rgb), 0.3); color: var(--danger); font-size: 0.85rem; padding: 12px 15px; text-align: center; font-weight: 500; border-radius: 8px; backdrop-filter: blur(8px); box-shadow: 0 4px 15px rgba(0,0,0,0.5); display: none; opacity: 0; transform: translateY(20px) scale(0.95); }
.panel-error-bar.visible { display: block; opacity: 1; transform: translateY(0) scale(1); animation: popIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards; }
.panel-error-bar.hiding { display: block; animation: popOut 0.3s ease-in forwards; }

.editor-status-bar { position: sticky; bottom: -5px; left: 0; width: 100%; z-index: 100; background: rgba(var(--danger-rgb), 0.15); border: 1px solid rgba(var(--danger-rgb), 0.3); color: var(--danger); font-size: 0.9rem; padding: 12px 15px; text-align: center; font-weight: bold; border-radius: 8px; backdrop-filter: blur(8px); box-shadow: 0 -4px 20px rgba(0,0,0,0.5); box-sizing: border-box; margin-top: auto; transition: all 0.3s; }
.editor-status-bar.success { background: rgba(var(--success-rgb), 0.15); border-color: rgba(var(--success-rgb), 0.3); color: var(--success); }

.castling-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 8px; }
.custom-checkbox { display: flex; align-items: center; gap: 8px; color: var(--text-main); font-size: 0.9rem; cursor: pointer; user-select: none; white-space: nowrap; }
.custom-checkbox input[type="checkbox"] { cursor: pointer; width: 16px; height: 16px; accent-color: var(--primary); margin: 0; }

.custom-select { position: relative; width: 100%; user-select: none; }
.select-selected { background: var(--bg-input); border: 1px solid var(--border-light); color: var(--text-main); font-family: 'Roboto Mono', monospace; font-size: 0.85rem; padding: 8px 10px; border-radius: 6px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: all 0.2s ease; }
.select-selected.select-arrow-active { border-color: var(--primary); background: var(--bg-header-tabs); }
.select-selected .select-arrow { width: 16px; height: 16px; color: var(--text-dim); transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), color 0.3s ease; }
.select-selected.select-arrow-active .select-arrow { transform: rotate(180deg); color: var(--primary); }
.select-items { position: absolute; background-color: var(--bg-panel); bottom: 100%; margin-bottom: 6px; z-index: var(--z-dropdown); left: 0; right: 0; border-radius: 8px; overflow: hidden; border: 1px solid var(--border-light); box-shadow: 0 -4px 15px rgba(0,0,0,0.6); }
.select-hide { display: none; }
.select-items div { color: var(--text-pure); padding: 10px 12px; cursor: pointer; font-family: 'Roboto Mono', monospace; font-size: 0.85rem; transition: background 0.1s; }
.select-items div:hover { background-color: rgba(var(--primary-rgb), 0.15); color: var(--primary); }

@keyframes popIn { from { transform: translateY(20px) scale(0.95); opacity: 0; } to { transform: translateY(0) scale(1); opacity: 1; } }
@keyframes popOut { from { transform: translateY(0) scale(1); opacity: 1; } to { transform: translateY(20px) scale(0.95); opacity: 0; } }