/* Tool-specific styles */
.tool-layout{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:start}
.tool-main{min-width:0}
.tool-sidebar{position:sticky;top:calc(var(--header-h) + 16px)}
@media(max-width:1024px){.tool-layout{grid-template-columns:1fr}}
@media(max-width:768px){.tool-sidebar{position:static}}

/* Color picker */
.color-preview{width:100%;height:48px;border-radius:var(--radius);border:1.5px solid var(--border);cursor:pointer;transition:border-color var(--transition)}
.color-preview:hover{border-color:var(--primary)}
.color-swatch{display:inline-block;width:28px;height:28px;border-radius:4px;border:1px solid var(--border);cursor:pointer;vertical-align:middle}
.color-swatches{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}

/* Image tool */
.drop-zone{border:2px dashed var(--border);border-radius:var(--radius-lg);padding:32px 20px;text-align:center;cursor:pointer;transition:all var(--transition);background:var(--bg-secondary)}
.drop-zone:hover,.drop-zone.drag-over{border-color:var(--primary);background:var(--primary-light)}
.drop-zone-icon{font-size:2.5rem;margin-bottom:10px;color:var(--text-muted)}
.drop-zone p{font-size:.875rem;color:var(--text-secondary)}
.drop-zone small{font-size:.78rem;color:var(--text-muted)}
.image-preview{max-width:100%;max-height:360px;object-fit:contain;border-radius:var(--radius);border:1px solid var(--border);margin:0 auto;display:block}
.image-compare{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.image-compare .img-wrap{text-align:center}
.image-compare .img-wrap p{font-size:.78rem;color:var(--text-muted);margin-top:4px}
.file-info{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:10px 14px;font-size:.82rem;color:var(--text-secondary);margin-top:8px}
.file-info span{font-weight:600;color:var(--text)}

/* QR Code */
#qrcode-output{display:flex;justify-content:center;padding:20px}
#qrcode-output canvas,#qrcode-output img{max-width:200px}

/* Camera/Scanner */
.camera-view{width:100%;max-width:480px;margin:0 auto;position:relative}
.camera-view video{width:100%;border-radius:var(--radius-lg);border:2px solid var(--border)}
.scan-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none}
.scan-frame{width:180px;height:180px;border:3px solid var(--primary);border-radius:12px;box-shadow:0 0 0 9999px rgba(0,0,0,.4)}

/* Diff viewer */
.diff-output{font-family:'Fira Code',monospace;font-size:.8rem;line-height:1.7}
.diff-line{padding:2px 10px;display:block;white-space:pre-wrap;word-break:break-all}
.diff-added{background:#d1fae5;color:#065f46}
.diff-removed{background:#fee2e2;color:#991b1b}
.diff-unchanged{color:var(--text-secondary)}
[data-theme="dark"] .diff-added{background:#022c22;color:#6ee7b7}
[data-theme="dark"] .diff-removed{background:#450a0a;color:#fca5a5}

/* Calculator */
.calc-display{background:#000;color:#00ff41;font-family:'Fira Code',monospace;font-size:2rem;padding:16px 20px;border-radius:var(--radius-lg) var(--radius-lg) 0 0;text-align:right;min-height:72px;word-break:break-all}
.calc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2px}
.calc-btn{padding:16px 8px;border:none;font-size:1rem;font-weight:600;cursor:pointer;transition:all .15s;font-family:var(--font)}
.calc-btn:hover{filter:brightness(1.1)}
.calc-btn:active{transform:scale(.95)}
.calc-num{background:#334155;color:#f1f5f9}
.calc-op{background:#2563eb;color:#fff}
.calc-clear{background:#dc2626;color:#fff}
.calc-eq{background:#10b981;color:#fff;grid-row:span 2}
.calc-zero{grid-column:span 2}
[data-theme="dark"] .calc-num{background:#1e293b;color:#f1f5f9}

/* Converter */
.converter-row{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center}
.convert-arrow{font-size:1.2rem;color:var(--text-muted);display:flex;align-items:center;justify-content:center}
@media(max-width:480px){.converter-row{grid-template-columns:1fr;gap:8px}.convert-arrow{transform:rotate(90deg)}}

/* Density meter */
.density-bar{height:20px;border-radius:10px;overflow:hidden;background:var(--border)}
.density-fill{height:100%;border-radius:10px;background:linear-gradient(90deg,var(--success),var(--warning),var(--danger));transition:width .4s ease}

/* Readability score */
.score-circle{width:100px;height:100px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.8rem;font-weight:800;margin:0 auto;border:6px solid}
.score-easy{border-color:var(--success);color:var(--success)}
.score-medium{border-color:var(--warning);color:var(--warning)}
.score-hard{border-color:var(--danger);color:var(--danger)}

/* SERP preview */
.serp-preview{border:1.5px solid var(--border);border-radius:var(--radius-lg);padding:16px;max-width:580px}
.serp-title{color:#1a0dab;font-size:1.1rem;font-weight:400;margin-bottom:2px;display:block;cursor:pointer}
.serp-title:hover{text-decoration:underline}
.serp-url{color:#006621;font-size:.82rem;margin-bottom:4px}
.serp-desc{font-size:.875rem;color:#545454;line-height:1.5}
[data-theme="dark"] .serp-title{color:#8ab4f8}
[data-theme="dark"] .serp-url{color:#34a853}
[data-theme="dark"] .serp-desc{color:#bdc1c6}

/* JWT */
.jwt-parts{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:12px;font-family:'Fira Code',monospace;font-size:.78rem;word-break:break-all}
.jwt-header-part{color:#fb7185}
.jwt-payload-part{color:#a78bfa}
.jwt-sig-part{color:#34d399}
.jwt-dot{color:var(--text-muted)}

/* Regex */
.regex-highlight{background:#fef9c3;color:#713f12;border-radius:2px;padding:0 1px}
[data-theme="dark"] .regex-highlight{background:#422006;color:#fde68a}

/* Meme */
.meme-canvas-wrap{text-align:center;background:#000;border-radius:var(--radius-lg);overflow:hidden}
.meme-canvas-wrap canvas{max-width:100%}