/* =========================================
       SENTENCE CASE CONVERTER — PREMIUM UI
       ========================================= */
    .da-wrapper {
        --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
        --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
        display: flex;
        justify-content: center;
            padding: clamp(0px, 5vw, 0px) 20px;
    }

    .da-panel {
        position: relative;                
        width: 100%;
        max-width: 1200px;
        border-radius: 28px;
        padding: clamp(28px, 5vw, 56px);
    }

    /* ---------- CASE PICKER ---------- */
    .case-picker { margin-bottom: 32px; }
    .cp-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
    
    .case-btn { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 16px; padding: 16px; position: relative; cursor: pointer; transition: all 0.2s; box-shadow: 0 4px 12px rgba(0,0,0,0.02); display: flex; flex-direction: column; gap: 8px; overflow: hidden; }
    .case-btn:hover { border-color: var(--primary-color); transform: translateY(-2px); }
    .case-btn.active { border-color: var(--primary-color); background: rgba(var(--primary-color-rgb), 0.03); box-shadow: 0 8px 24px rgba(var(--primary-color-rgb), 0.1); }
    
    .cb-active-dot { position: absolute; top: 16px; right: 16px; width: 8px; height: 8px; border-radius: 50%; background: var(--primary-color); opacity: 0; transform: scale(0); transition: all 0.3s var(--ease-spring); }
    .case-btn.active .cb-active-dot { opacity: 1; transform: scale(1); }
    
    .cb-preview { font-family: 'Space Mono', monospace; font-size: 14px; font-weight: 800; color: var(--text-main); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; padding-right: 16px; }
    .cb-name { font-size: 11px; font-weight: 800; color: var(--primary-color); text-transform: uppercase; letter-spacing: 0.5px; }
    .cb-desc { font-size: 11px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; opacity: 0.7; }

    /* ---------- MAIN GRID ---------- */
    .main-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 40px; }
    @media(max-width: 900px) { .main-grid { grid-template-columns: 1fr; } }
    
    .panel { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 20px; display: flex; flex-direction: column; overflow: hidden; box-shadow: 0 10px 30px rgba(0,0,0,0.02); }
    
    .p-header { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--border-color); background: var(--bg-body); flex-wrap: wrap; gap: 12px; }
    .p-label { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 800; color: var(--text-main); }
    .p-meta { display: flex; align-items: center; gap: 12px; }
    
    .p-badge { background: var(--bg-body); border: 1px solid var(--border-color); font-size: 11px; font-weight: 700; color: var(--text-muted); padding: 4px 10px; border-radius: 100px; transition: all 0.2s; }
    .p-badge.live { background: rgba(34,197,94,0.1); border-color: rgba(34,197,94,0.2); color: #22c55e; }
    .p-badge.changed { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.2); color: #ef4444; }

    .dir-toggle, .view-tabs { display: flex; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 8px; padding: 2px; }
    .dir-btn, .vt { background: transparent; border: none; padding: 4px 8px; font-size: 11px; font-weight: 800; color: var(--text-muted); border-radius: 6px; cursor: pointer; transition: all 0.2s; display: flex; align-items: center; gap: 4px; }
    .dir-btn.active, .vt.active { background: var(--bg-body); color: var(--primary-color); box-shadow: 0 2px 4px rgba(0,0,0,0.05); }

    textarea, .hl-view { flex: 1; min-height: 300px; width: 100%; background: transparent; border: none; padding: 20px; font-size: 15px; line-height: 1.6; font-family: 'Space Mono', monospace; color: var(--text-main); outline: none; resize: vertical; }
    .hl-view { overflow-y: auto; white-space: pre-wrap; word-break: break-word; background: rgba(var(--primary-color-rgb), 0.01); display: none; }
    .c-changed { background: rgba(239,68,68,0.15); color: #dc2626; border-radius: 2px; padding: 0 1px; border-bottom: 1px dashed #ef4444; }
    .c-unchanged { opacity: 0.8; }

    .p-footer { display: flex; flex-wrap: wrap; gap: 12px; padding: 12px 20px; border-top: 1px solid var(--border-color); background: var(--bg-body); }
    /* ── Comparison Panel & Analytics ── */
    .comparison-panel {
        background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 24px;
        padding: 28px; margin-top: 32px; box-shadow: 0 10px 30px rgba(0,0,0,0.02); margin-bottom: 40px;
    }
    .cp-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 12px; }
    .cp-title { font-size: 16px; font-weight: 800; color: var(--text-main); display: flex; align-items: center; gap: 10px; }
    .cp-badge { font-size: 12px; font-weight: 800; padding: 6px 14px; border-radius: 100px; }
    .badge-high { background: color-mix(in srgb, var(--success, #10b981) 15%, transparent); color: var(--success, #10b981); border: 1px solid color-mix(in srgb, var(--success, #10b981) 30%, transparent); }

    .cp-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
    .cp-card { background: var(--bg-body); border: 1px solid var(--border-color); border-radius: 16px; padding: 20px; display: flex; flex-direction: column; gap: 14px; }
    .cpc-header { display: flex; justify-content: space-between; align-items: center; }
    .cpc-title { font-size: 13.5px; font-weight: 800; color: var(--text-main); }
    .cpc-tag { font-size: 11.5px; font-weight: 800; padding: 4px 10px; border-radius: 6px; }
    .cpc-tag.success { background: color-mix(in srgb, var(--success, #10b981) 15%, transparent); color: var(--success, #10b981); }

    .cpc-body { display: flex; flex-direction: column; gap: 10px; }
    .cpc-stat-row { font-size: 13px; color: var(--text-muted); display: flex; justify-content: space-between; }
    .cpc-stat-row strong { color: var(--text-main); font-weight: 700; }
    .cpc-progress-bar { width: 100%; height: 8px; background: var(--border-color); border-radius: 100px; overflow: hidden; margin-top: 4px; }
    .cpc-progress-fill { height: 100%; background: var(--primary-color); border-radius: 100px; transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1); }
    .cpc-progress-fill.bg-gradient { background: linear-gradient(90deg, var(--primary-color), var(--primary-gradient-end)); }
    .act-btn { flex: 1; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 8px; padding: 8px; font-size: 12px; font-weight: 800; color: var(--text-main); display: flex; align-items: center; justify-content: center; gap: 8px; cursor: pointer; transition: all 0.2s; white-space: nowrap; }
    .act-btn:hover { border-color: var(--primary-color); transform: translateY(-2px); }
    .act-btn.danger { color: #ef4444; }
    .act-btn.danger:hover { border-color: #ef4444; background: rgba(239,68,68,0.05); }
    .act-btn.copied { background: #22c55e !important; border-color: #22c55e !important; color: #fff !important; }

    /* ---------- CUSTOM DROPDOWN ---------- */
    .custom-dropdown { position: relative; display: inline-block; user-select: none; }
    .cd-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; background: var(--card-bg); border: 1px solid var(--border-color); padding: 6px 12px; border-radius: 8px; font-size: 12px; font-weight: 800; color: var(--text-main); cursor: pointer; transition: all 0.2s; min-width: 140px; }
    .cd-header:hover, .custom-dropdown.active .cd-header { border-color: var(--primary-color); }
    .cd-value { display: flex; align-items: center; gap: 8px; }
    .cd-body { position: absolute; top: calc(100% + 8px); right: 0; width: 220px; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); padding: 8px; z-index: 100; opacity: 0; visibility: hidden; transform: translateY(-10px); transition: all 0.2s; display: flex; flex-direction: column; gap: 8px; }
    .custom-dropdown.active .cd-body { opacity: 1; visibility: visible; transform: translateY(0); }
    .cd-search input { width: 100%; background: var(--bg-body); border: 1px solid var(--border-color); border-radius: 8px; padding: 8px 12px; font-size: 12px; color: var(--text-main); outline: none; }
    .cd-list { max-height: 200px; overflow-y: auto; display: flex; flex-direction: column; gap: 2px; }
    .cd-list::-webkit-scrollbar { width: 4px; }
    .cd-list::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
    .cd-item { display: flex; align-items: center; gap: 10px; padding: 8px 12px; border-radius: 8px; font-size: 12px; font-weight: 700; color: var(--text-main); cursor: pointer; transition: background 0.2s; }
    .cd-item:hover { background: var(--bg-body); }
    .cd-item.active { background: rgba(var(--primary-color-rgb), 0.05); color: var(--primary-color); }

    /* ---------- STATS STRIP ---------- */
    .stats-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 16px; margin-bottom: 40px; }
    .sc { background: var(--card-bg); border-radius: 16px; padding: 20px; border: 1px solid var(--border-color); display: flex; flex-direction: column; align-items: center; text-align: center; transition: transform 0.2s; }
    .sc:hover { transform: translateY(-2px); }
    .sc-ico { width: 36px; height: 36px; border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
    
    .sc-ico.red { background: rgba(239, 68, 68, 0.1); color: #ef4444; }
    .sc-ico.blue { background: rgba(59, 130, 246, 0.1); color: #3b82f6; }
    .sc-ico.green { background: rgba(34, 197, 94, 0.1); color: #22c55e; }
    .sc-ico.warn { background: rgba(245, 158, 11, 0.1); color: #f59e0b; }
    .sc-ico.purple { background: rgba(168, 85, 247, 0.1); color: #a855f7; }
    
    .sc-val { font-size: 28px; font-weight: 900; color: var(--text-main); line-height: 1; margin-bottom: 4px; transition: transform 0.3s; }
    .sc-lbl { font-size: 11px; font-weight: 800; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
    .sc-val.popped { transform: scale(1.3); color: var(--primary-color); }

    /* ---------- REF TABLE ---------- */
    .ref-section { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 20px; overflow: hidden; margin-bottom: 40px; box-shadow: 0 10px 30px rgba(0,0,0,0.02); }
    .ref-header { display: flex; align-items: center; gap: 8px; padding: 16px 20px; border-bottom: 1px solid var(--border-color); background: var(--bg-body); font-size: 14px; font-weight: 800; color: var(--text-main); }
    .ref-table { width: 100%; border-collapse: collapse; text-align: left; }
    .ref-table th { background: rgba(var(--primary-color-rgb), 0.02); padding: 12px 20px; font-size: 11px; font-weight: 800; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid var(--border-color); }
    .ref-table td { padding: 16px 20px; border-bottom: 1px solid var(--border-color); font-size: 13px; color: var(--text-main); }
    .ref-table tr:last-child td { border-bottom: none; }
    .ref-table tbody tr { transition: background 0.2s; }
    .ref-table tbody tr:hover { background: rgba(0,0,0,0.01); }
    
    .rt-case-name { font-weight: 800; color: var(--primary-color); }
    .rt-example { font-family: 'Space Mono', monospace; font-weight: 800; }
    .rt-badge { display: inline-flex; align-items: center; gap: 6px; background: var(--bg-body); border: 1px solid var(--border-color); padding: 6px 12px; border-radius: 8px; font-size: 11px; font-weight: 800; color: var(--text-muted); cursor: pointer; transition: all 0.2s; }
    .rt-badge:hover { border-color: var(--primary-color); color: var(--primary-color); background: rgba(var(--primary-color-rgb), 0.05); }

    /* Zero-Inline Enhancements */
    #bgCv { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none; }
    .rw-hero-badge i { width: 14px; height: 14px; }
    .p-label i { width: 14px; height: 14px; }
    .p-label i.icon-primary { color: var(--primary-color); }
    .cd-value i, .cd-item i { width: 16px; height: 16px; color: var(--text-muted); }
    .cd-header i.cd-chevron { width: 14px; height: 14px; }
    .act-btn.compact-btn { padding: 4px 10px; font-size: 11px; }
    .act-btn.compact-btn i { width: 12px; height: 12px; }
    .adv-options-panel { background: var(--bg-body); border-bottom: 1px solid var(--border-color); padding: 16px 20px; display: flex; gap: 16px; flex-wrap: wrap; }
    .adv-opt-group { flex: 1; min-width: 200px; }
    .adv-opt-label { display: block; font-size: 11.5px; font-weight: 800; color: var(--text-muted); margin-bottom: 6px; text-transform: uppercase; }
    .adv-opt-input { width: 100%; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 8px; padding: 6px 12px; font-size: 13px; color: var(--text-main); outline: none; }
    .act-btn i { width: 14px; height: 14px; }
    #fileInput { display: none; }
    .vt i { width: 12px; height: 12px; }
    .sc.border-red { border-top: 2px solid #ef4444; }
    .sc.border-blue { border-top: 2px solid #3b82f6; }
    .sc.border-green { border-top: 2px solid #22c55e; }
    .sc.border-warn { border-top: 2px solid #f59e0b; }
    .sc.border-purple { border-top: 2px solid #a855f7; }
    .sc-ico i { width: 18px; height: 18px; }
    .ref-header i { width: 14px; height: 14px; }
    .ref-table-wrap { overflow-x: auto; }
    .rt-example.text-muted { color: var(--text-muted); }
    .rt-badge i { width: 12px; height: 12px; }
    .cp-title i { color: var(--primary-color); }
    .cpc-progress-fill.w-full { width: 100%; }
    .cpc-progress-fill.bg-blue { background: #3b82f6; }
    .cpc-progress-fill.bg-pink { background: #ec4899; }
    .cpc-progress-fill.bg-warn { background: #f59e0b; }
    .cpc-stat-row.mt-8 { margin-top: 8px; }
    .info-div-t.mt-40 { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 800; color: var(--text-main); margin-bottom: 20px; margin-top: 40px; }
    .info-div-t i { width: 16px; height: 16px; color: var(--primary-color); }