/* ==========================================================================
   HolyCrab · 帮助弹窗专属样式
   - 自包含模块，不污染 styles.css
   - 复用 styles.css 顶部的全局 CSS 变量（--bg-*, --text-*, --accent-*, --radius-*）
   - 弹窗骨架沿用 styles.css 的 .modal-overlay / .modal-container / .modal-header / .modal-close-btn
   - 配套 JS：features/help-modal.js
   ========================================================================== */

/* 帮助弹窗 body 容器（覆盖 .modal-body 默认 padding） */
.help-modal-body {
    padding: 24px !important;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* 顶部提示横幅 */
.help-tip-banner {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    background: linear-gradient(135deg, rgba(255,179,71,0.08), rgba(255,149,0,0.04));
    border: 1px solid rgba(255,168,79,0.18);
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    line-height: 1.55;
}

.help-tip-banner svg {
    color: var(--accent-blue);
    flex-shrink: 0;
    margin-top: 1px;
}

.help-tip-banner b {
    color: var(--accent-blue);
    font-weight: 600;
}

/* Section 容器 */
.help-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.help-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    padding-left: 10px;
    border-left: 3px solid var(--accent-blue);
    line-height: 1.2;
}

.help-section-title-meta {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-tertiary);
    margin-left: 4px;
}

/* 卡片网格（基础操作 / 高级功能 用，2×N 排布） */
.help-card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.help-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-md);
    transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.help-card:hover {
    border-color: var(--node-border-strong);
    background: rgba(255,168,79,0.04);
    box-shadow: 0 0 22px rgba(255,168,79,0.06);
}

.help-card-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,168,79,0.10);
    color: var(--accent-blue);
}

.help-card-icon svg {
    width: 16px;
    height: 16px;
    stroke-width: 2;
}

.help-card-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.help-card-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
}

.help-card-desc {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 快捷键 pill 网格（2 列） */
.help-shortcut-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.help-shortcut-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 9px 12px;
    background: rgba(255,255,255,0.025);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 8px;
    transition: background 0.12s, border-color 0.12s;
}

.help-shortcut-row:hover {
    background: rgba(255,168,79,0.06);
    border-color: rgba(255,168,79,0.14);
}

.help-shortcut-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.help-shortcut-keys {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.help-shortcut-key {
    padding: 3px 8px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.06);
    color: var(--text-primary);
    font-family: 'Manrope', 'Inter', monospace;
    font-size: 11px;
    font-weight: 600;
    border-radius: 5px;
    line-height: 1;
    white-space: nowrap;
}

.help-shortcut-key.is-action {
    background: rgba(255,168,79,0.10);
    border-color: rgba(255,168,79,0.18);
    color: var(--accent-blue);
    font-weight: 500;
}

.help-shortcut-plus {
    color: var(--text-tertiary);
    font-size: 11px;
}

/* 模态弹窗 title 增强（图标 + 标题） */
.modal-overlay#helpModal .modal-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.modal-overlay#helpModal .modal-title svg {
    color: var(--accent-blue);
}

/* 帮助弹窗内部滚动条美化 */
.modal-overlay#helpModal .modal-body::-webkit-scrollbar {
    width: 8px;
}

.modal-overlay#helpModal .modal-body::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.08);
    border-radius: 4px;
}

.modal-overlay#helpModal .modal-body::-webkit-scrollbar-thumb:hover {
    background: rgba(255,168,79,0.20);
}

/* 响应式：窄屏单列 */
@media (max-width: 760px) {
    .help-card-grid,
    .help-shortcut-grid {
        grid-template-columns: 1fr;
    }
}