:root{--bg-color:#09090b;--surface-color:#18181b;--border-color:#27272a;--text-main:#f4f4f5;--text-muted:#a1a1aa;--accent:#3b82f6;--success:#10b981;--highlight-bg:#3b82f633;--highlight-border:#3b82f6;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-color);color:var(--text-main);flex-direction:column;height:100vh;display:flex;overflow:hidden}header{border-bottom:1px solid var(--border-color);background-color:var(--surface-color);flex-shrink:0;justify-content:space-between;align-items:center;padding:.75rem 1.5rem;display:flex}.header-text h1{margin-bottom:.1rem;font-size:1.1rem;font-weight:600}.header-text p{color:var(--text-muted);font-size:.8rem}.window-size-badge{font-family:var(--font-mono);border:1px solid var(--border-color);background:#ffffff1a;border-radius:20px;padding:.5rem 1rem;font-size:.85rem}.layout{flex:1;min-height:0;display:flex}.playground{background-image:radial-gradient(var(--border-color) 1px, transparent 1px);background-size:20px 20px;flex:1;justify-content:center;align-items:center;padding:2rem;display:flex;overflow:hidden}.image-wrapper{background:var(--surface-color);border:1px solid var(--border-color);border-radius:8px;width:100%;max-width:1200px;padding:.5rem;box-shadow:0 10px 15px -3px #00000080}.demo-image{object-fit:contain;border-radius:4px;width:100%;height:auto;max-height:calc(100vh - 150px);display:block}.sidebar{background-color:var(--surface-color);border-left:1px solid var(--border-color);flex-direction:column;width:500px;min-width:450px;display:flex;overflow-y:auto}.panel-section{border-bottom:1px solid var(--border-color);padding:1rem 1.5rem}.panel-section h2{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:.75rem;font-size:.75rem;font-weight:600}.browser-simulator{gap:.5rem;margin-bottom:.5rem;display:flex}.toggle-btn{background:var(--bg-color);border:1px solid var(--border-color);color:var(--text-muted);cursor:pointer;font-size:.75rem;font-family:var(--font-sans);text-align:center;border-radius:6px;flex:1;padding:.6rem .25rem;font-weight:600;transition:all .2s}.toggle-btn:hover{border-color:var(--text-muted);color:var(--text-main)}.toggle-btn.active{border-color:var(--accent);color:var(--accent);background:#3b82f626}.stat-grid{grid-template-columns:1fr;gap:.5rem;display:grid}.stat-card{background:var(--bg-color);border:1px solid var(--border-color);border-radius:6px;justify-content:space-between;align-items:center;padding:.75rem 1rem;display:flex}.stat-label{color:var(--text-muted);font-size:.75rem}.stat-value{font-size:1rem;font-weight:600;font-family:var(--font-mono);color:var(--text-main)}.success{color:var(--success)}.accent{color:var(--accent)}.code-block{background:var(--bg-color);border:1px solid var(--border-color);font-family:var(--font-mono);color:#e4e4e7;white-space:pre-wrap;border-radius:6px;padding:.8rem;font-size:.75rem;line-height:1.4;overflow-x:auto}.keyword{color:#f472b6}.attr{color:#34d399}.string{color:#fcd34d}.comment{color:#71717a;font-style:italic}.code-disabled{opacity:.35;transition:all .3s}.code-disabled .active-tag{display:none}.size-condition{border:1px solid #0000;border-radius:4px;margin:.1rem 0;padding:.1rem .3rem;transition:all .3s;display:block}.size-condition.active{background:var(--highlight-bg);border-color:var(--highlight-border);color:#fff;box-shadow:0 0 10px #3b82f64d}.active-tag{background:var(--accent);color:#fff;vertical-align:middle;opacity:0;border-radius:8px;margin-left:.5rem;padding:.1rem .3rem;font-size:.65rem}.size-condition.active .active-tag{opacity:1}.modal-overlay{-webkit-backdrop-filter:blur(5px);z-index:1000;background:#000c;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-overlay.hidden{display:none}.modal-content{background:var(--surface-color);border:1px solid var(--border-color);border-radius:12px;max-width:500px;margin:1rem;padding:2rem;box-shadow:0 20px 25px -5px #00000080}.modal-content h2{color:#fcd34d;margin-bottom:1rem;font-size:1.25rem}.modal-content p{color:var(--text-main);margin-bottom:1rem;font-size:.95rem;line-height:1.5}.modal-content ul{color:var(--text-muted);margin-bottom:1.5rem;padding-left:1.5rem;font-size:.9rem;line-height:1.5}.modal-content li{margin-bottom:.5rem}.btn-primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:6px;width:100%;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;transition:background .2s}.btn-primary:hover{background:#2563eb}@media (width<=800px){.layout{flex-direction:column}.sidebar{border-left:none;border-top:1px solid var(--border-color);width:100%}body{height:auto;overflow:auto}}