.arr-page-header{text-align:center;max-width:960px;margin:0 auto;padding:24px 16px 8px}.arr-layout{grid-template-columns:380px 1fr;align-items:start;gap:32px;max-width:960px;margin:0 auto;padding:0 16px;display:grid}.arr-controls-col{flex-direction:column;gap:20px;display:flex}.arr-viz-col{flex-direction:column;gap:24px;display:flex;position:sticky;top:16px}.arr-input-row{flex-direction:column;gap:6px;display:flex}.arr-input-field{border:1px solid var(--swp-border);border-radius:var(--r-md);font-family:var(--font-mono);background:var(--swp-surface);min-height:44px;color:var(--swp-ink);box-sizing:border-box;width:100%;padding:10px 12px;font-size:14px}.arr-input-error{color:#dc2626;font-size:12px}.arr-method-tabs{border-bottom:2px solid var(--swp-border);flex-wrap:wrap;gap:4px;padding-bottom:0;display:flex}.arr-tab{min-height:44px;font-family:var(--font-mono);color:var(--swp-ink-muted);cursor:pointer;border-radius:var(--r-sm) var(--r-sm) 0 0;background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-2px;padding:8px 14px;font-size:13px;font-weight:600;transition:color .15s,border-color .15s}.arr-tab--active,.arr-tab[aria-selected=true]{color:var(--color-primary);border-bottom-color:var(--color-primary)}.arr-callback-area{flex-direction:column;gap:8px;display:flex}.arr-callback-textarea{border:1px solid var(--swp-border);border-radius:var(--r-md);font-family:var(--font-mono);resize:vertical;background:var(--swp-surface-code);min-height:80px;color:var(--swp-ink);tab-size:2;box-sizing:border-box;width:100%;padding:10px 12px;font-size:13px;line-height:1.6}.arr-callback-textarea:focus{outline:2px solid var(--color-primary);outline-offset:-2px}.arr-initial-row{align-items:center;gap:8px;display:flex}.arr-initial-row label{color:var(--swp-ink-muted);white-space:nowrap;font-size:13px}.arr-initial-input{border:1px solid var(--swp-border);border-radius:var(--r-md);font-family:var(--font-mono);background:var(--swp-surface);width:80px;min-height:44px;color:var(--swp-ink);padding:8px 10px;font-size:13px}.arr-speed-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.arr-speed-btn{border:1px solid var(--swp-border);border-radius:var(--r-pill);background:var(--swp-surface);cursor:pointer;min-height:44px;padding:6px 12px;font-size:13px}.arr-speed-btn--active,.arr-speed-btn[aria-pressed=true]{background:var(--swp-surface-alt);border-color:var(--swp-ink-muted);font-weight:700}.arr-run-btn{border-radius:var(--r-pill);background:var(--color-primary);min-height:44px;color:var(--color-primary-content);cursor:pointer;border:none;padding:10px 28px;font-size:14px;font-weight:700}.arr-run-btn:disabled{opacity:.5;cursor:not-allowed}.arr-reset-btn{border-radius:var(--r-pill);cursor:pointer;border:1px solid var(--swp-border);background:var(--swp-surface);min-height:44px;padding:8px 16px;font-size:13px}.arr-copy-btn{border-radius:var(--r-pill);cursor:pointer;background:var(--color-primary);min-height:44px;color:var(--color-primary-content);border:none;margin-top:4px;padding:8px 16px;font-size:13px;font-weight:600;transition:background .2s}.arr-copy-btn:hover{opacity:.9}.arr-copy-btn--copied{background:#16a34a}.arr-presets{flex-wrap:wrap;gap:8px;display:flex}.arr-chip{border:1px solid var(--swp-border);border-radius:var(--r-md);background:var(--swp-surface);cursor:pointer;text-align:left;flex-direction:column;justify-content:center;min-height:44px;padding:6px 12px;font-size:12px;transition:background .15s;display:flex}.arr-chip:hover{background:var(--swp-surface-alt)}.arr-chip-label{color:var(--swp-ink);font-size:13px;font-weight:600}.arr-chip-desc{color:var(--swp-ink-muted);margin-top:2px;font-size:11px}.arr-viz-section{flex-direction:column;gap:16px;display:flex}.arr-elem-row{flex-wrap:wrap;align-items:flex-end;gap:8px;display:flex}.arr-elem-box{flex-direction:column;align-items:center;gap:4px;display:flex}.arr-elem-value{border:2px solid var(--swp-border);border-radius:var(--r-md);width:48px;height:48px;font-family:var(--font-mono);background:var(--swp-surface);color:var(--swp-ink);justify-content:center;align-items:center;font-size:16px;font-weight:700;transition:background .2s,border-color .2s,color .2s;display:flex}.arr-elem-box--active .arr-elem-value{color:#fff;background:#0d9488;border-color:#0d9488;transform:scale(1.1)}.arr-elem-box--result .arr-elem-value{color:#0d9488;background:#f0fdfa;border-color:#0d9488}.arr-elem-box--excluded .arr-elem-value{color:#94a3b8;background:#f1f5f9;border-color:#cbd5e1;text-decoration:line-through}.arr-step-label{color:var(--swp-ink-muted);text-align:center;word-break:break-all;max-width:60px;font-size:11px}.arr-output-section{flex-direction:column;gap:8px;display:flex}.arr-output-value{font-family:var(--font-mono);color:#0d9488;border-radius:var(--r-lg);word-break:break-all;background:#f0fdfa;border:1px solid #0d9488;padding:12px 16px;font-size:22px;font-weight:800}.arr-early-exit-badge{border-radius:var(--r-pill);color:#713f12;background:#fef9c3;border:1px solid #fde047;align-items:center;gap:4px;padding:4px 10px;font-size:12px;font-weight:600;display:inline-flex}.arr-error-box{border-radius:var(--r-md);font-family:var(--font-mono);color:#7f1d1d;white-space:pre-wrap;background:#fee2e2;border:1px solid #fca5a5;padding:12px 14px;font-size:12px}.arr-section-title{color:var(--swp-ink);margin:0 0 12px;font-size:16px;font-weight:700}.arr-how-to,.arr-related-section{max-width:960px;margin:48px auto 0;padding:0 16px}.arr-steps{padding-left:1.4em}.arr-steps li{margin-bottom:8px;line-height:1.6}.arr-related-list{padding:0;list-style:none}.arr-related-list li{margin-bottom:6px}.arr-related-tools{flex-direction:column;gap:6px;display:flex}.arr-related-link{color:var(--color-primary);text-decoration:none}.arr-related-link:hover{text-decoration:underline}@media (prefers-reduced-motion:reduce){.arr-elem-value,.arr-chip{transition:none}.arr-elem-box--active .arr-elem-value{transform:none}}@media (width<=639px){.arr-layout{grid-template-columns:1fr;gap:20px}.arr-controls-col{order:2}.arr-viz-col{order:1;position:static}.arr-method-tabs{gap:2px}.arr-tab{padding:6px 10px;font-size:12px}.arr-elem-value{width:40px;height:40px;font-size:14px}.arr-chip-desc{display:none}.arr-run-btn{width:100%}}.arr-body-text{color:var(--swp-ink);margin:0 0 12px;font-size:15px;line-height:1.8}.arr-method-guide,.arr-use-cases{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.arr-method-guide li,.arr-use-cases li{color:var(--swp-ink);font-size:15px;line-height:1.7}.arr-faq{margin:0}.arr-faq dt{color:var(--swp-ink);margin-top:16px;font-size:15px;font-weight:700}.arr-faq dt:first-child{margin-top:0}.arr-faq dd{color:var(--swp-ink-2);margin:6px 0 0;font-size:15px;line-height:1.7}