:root{--font-sans:-apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Icons", "Helvetica Neue", Helvetica, Arial, sans-serif;--bg-black:#000;--bg-system-gray:#1c1c1e;--bg-system-gray-light:#2c2c2e;--text-primary:#f5f5f7;--text-secondary:#86868b;--text-muted:#48484a;--apple-blue:#007aff;--apple-blue-hover:#147efb;--border-color:#38383a;--border-color-light:#2c2c2e;--radius-ios:10px;--radius-macos:12px;--radius-container:18px;--transition-apple:all .2s cubic-bezier(.25, .8, .25, 1)}*{box-sizing:border-box;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-black);color:var(--text-primary);letter-spacing:-.022em;min-height:100vh;line-height:1.47059;overflow-x:hidden}#root{width:100%;min-height:100vh}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-black)}::-webkit-scrollbar-thumb{background:var(--text-muted);border:2px solid var(--bg-black);border-radius:99px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.MuiSlider-root{color:var(--apple-blue)!important}.MuiSlider-thumb{background-color:#fff!important;box-shadow:0 2px 4px #0000004d!important}.MuiSlider-thumb:hover,.MuiSlider-thumb.Mui-focusVisible{box-shadow:0 0 0 8px #007aff29!important}.MuiSlider-track{border:none!important}.MuiSlider-rail{opacity:.2!important;background-color:var(--text-secondary)!important}.mac-window-header{background-color:#1c1c1e;border-bottom:1px solid #2c2c2e;border-top-left-radius:12px;border-top-right-radius:12px;align-items:center;gap:8px;padding:12px 16px;display:flex}.mac-dot{border-radius:50%;width:12px;height:12px;display:inline-block}.mac-dot.close{background-color:#ff5f56}.mac-dot.minimize{background-color:#ffbd2e}.mac-dot.maximize{background-color:#27c93f}.preview-3d-container{background-color:#0c0c0e;border:1px solid #2c2c2e;border-top:none;border-bottom-right-radius:12px;border-bottom-left-radius:12px;width:100%;height:100%;position:relative;overflow:hidden;box-shadow:inset 0 4px 20px #0009}@media (width<=600px){.preview-3d-container{height:320px}}.preset-button{text-transform:none!important;color:#f5f5f7!important;transition:var(--transition-apple)!important;background-color:#2c2c2e!important;border:1px solid #38383a!important;border-radius:20px!important;padding:4px 12px!important;font-size:.8rem!important}.preset-button:hover{background-color:#3a3a3c!important;border-color:#48484a!important}.preset-color-indicator{border:1px solid #fff3;border-radius:50%;width:12px;height:12px;margin-right:6px;display:inline-block}.apple-color-picker{background-color:#1c1c1e;border:1px solid #2c2c2e;border-radius:12px;align-items:center;gap:12px;width:100%;padding:8px 14px;display:flex}.color-circle-input{appearance:none;cursor:pointer;background:0 0;border:none;outline:none;width:24px;height:24px}.color-circle-input::-webkit-color-swatch-wrapper{padding:0}.color-circle-input::-webkit-color-swatch{border:1px solid #fff3;border-radius:50%;box-shadow:0 1px 3px #0006}.slider-value-display{color:#86868b;font-size:.85rem;font-weight:500}.apple-step-card{transition:var(--transition-apple);background-color:#1c1c1e;border:1px solid #2c2c2e;border-radius:12px;align-items:flex-start;gap:16px;padding:16px;display:flex}.apple-step-card:hover{background-color:#2c2c2e;border-color:#38383a}.apple-step-num{color:#007aff;background-color:#007aff1a;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:.85rem;font-weight:700;display:flex}.apple-step-title{color:#f5f5f7;margin-bottom:4px;font-size:.9rem;font-weight:600}.apple-step-body{color:#86868b;font-size:.8rem;line-height:1.4}.highlight-blue{color:#007aff;font-weight:600}