:root{--bg-base:#0a0b0e;--bg-surface:#111318;--bg-elevated:#1a1c24;--bg-input:#0006;--accent:#3b82f6;--accent-glow:#3b82f640;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--text-tertiary:#94a3b8;--border:#ffffff1a;--border-focus:#3b82f699;--radius-md:8px;--radius-lg:12px;--font-xs:.75rem;--font-sm:.8125rem;--font-base:.875rem;--font-md:1rem}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-base);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:var(--font-base);-webkit-font-smoothing:antialiased;justify-content:center;align-items:flex-start;min-height:100vh;padding:40px 20px;line-height:1.5;display:flex;overflow:auto}.app-shell{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-lg);flex-direction:column;width:100%;max-width:1200px;height:auto;display:flex;overflow:hidden;box-shadow:0 40px 100px #0009}.app-bar{border-bottom:2px solid var(--border);flex-shrink:0;align-items:center;height:56px;padding:0 24px;display:flex}.app-bar .logo{color:var(--text-primary);font-size:1.1rem;font-weight:800}.app-bar .logo span{color:var(--accent)}.app-bar .tagline{font-size:var(--font-xs);color:var(--text-tertiary);margin-left:16px;font-weight:500}.input-bar{border-bottom:1px solid var(--border);background:var(--bg-elevated);flex-shrink:0;grid-template-columns:140px 1.2fr 1fr;gap:16px;padding:12px 24px;display:grid}.field{flex-direction:column;gap:8px;display:flex}.field-label{font-size:var(--font-xs);color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;border-left:3px solid var(--accent);padding-left:10px;font-weight:700}.input,.textarea{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:var(--font-base);padding:10px 14px}.input:focus,.textarea:focus{border-color:var(--accent);outline:none}.workspace{min-height:0;display:flex}.props-panel{border-right:1px solid var(--border);flex-direction:column;gap:16px;width:280px;min-width:280px;padding:20px;display:flex;overflow-y:auto}.prop-section-title{font-size:var(--font-xs);color:var(--text-primary);border-left:3px solid var(--accent);margin-bottom:16px;padding-left:10px;font-weight:700}.tab-group{background:#0000004d;border-radius:8px;margin-bottom:20px;padding:4px;display:flex}.tab-item{text-align:center;font-size:var(--font-xs);color:var(--text-secondary);cursor:pointer;border-radius:6px;flex:1;padding:8px 0;font-weight:600}.tab-item.active{background:var(--bg-elevated);color:var(--text-primary)}.color-grid{grid-template-columns:repeat(2,1fr);gap:10px;display:grid}.color-swatch{cursor:pointer;color:#fff;text-shadow:0 1px 4px #00000080;border:2px solid #0000;border-radius:6px;justify-content:center;align-items:center;height:40px;font-size:10px;font-weight:800;transition:all .2s;display:flex}.color-swatch.active{border-color:#fff;transform:scale(1.05)}.btn-generate{background:var(--bg-elevated);border:1px solid var(--border);width:100%;color:var(--text-primary);font-size:var(--font-sm);border-radius:var(--radius-md);cursor:pointer;margin-top:8px;padding:12px;font-weight:600}.canvas-panel{flex-direction:column;flex:1;align-items:center;min-width:0;padding:16px 24px;display:flex;overflow-y:hidden}.studio-main-group{flex-direction:column;align-items:center;gap:16px;width:100%;max-width:900px;display:flex}.pattern-selector{flex-direction:column;gap:16px;width:100%;display:flex}.pattern-options-row{scrollbar-width:thin;gap:12px;width:100%;padding-bottom:8px;display:flex;overflow-x:auto}.pattern-option{cursor:pointer;flex-direction:column;flex-shrink:0;align-items:center;gap:8px;display:flex}.pattern-option-thumb{aspect-ratio:1.8;background:#000;border:2px solid #0000;border-radius:8px;width:120px;transition:all .2s;overflow:hidden}.pattern-option.active .pattern-option-thumb{border-color:var(--accent);box-shadow:0 8px 20px var(--accent-glow)}.pattern-option-thumb img{object-fit:cover;width:100%;height:100%}.pattern-option-name{font-size:var(--font-xs);color:var(--text-tertiary);font-weight:600}.pattern-option.active .pattern-option-name{color:var(--text-primary)}.canvas-viewport{justify-content:center;width:100%;display:flex}.canvas-frame{aspect-ratio:1200/630;border:1px solid var(--border);background:#000;border-radius:4px;width:100%;max-width:820px;position:relative;overflow:hidden;box-shadow:0 40px 100px #000000b3}.canvas-frame img{object-fit:contain;width:100%;height:100%;display:block}.btn-primary{background:var(--accent);color:#fff;border-radius:var(--radius-lg);cursor:pointer;box-shadow:0 10px 25px var(--accent-glow);border:none;align-items:center;gap:12px;padding:16px 56px;font-size:1rem;font-weight:800;display:flex}.usage-counter{color:var(--text-tertiary);text-align:center;border-top:1px solid var(--border);margin-top:auto;padding-top:20px;font-size:11px}.loading-overlay{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:10;background:#0009;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.spinner{border:3px solid #ffffff1a;border-top-color:var(--accent);border-radius:50%;width:32px;height:32px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}