:root{--color-bg: #f9fafb;--color-card-bg: #ffffff;--color-accent: #f97316;--color-accent-hover: #ea580c;--color-text-main: #1f2937;--color-text-sub: #6b7280;--color-border: #e5e7eb;--color-border-input: #d1d5db;--font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;--radius-md: .375rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--color-bg);color:var(--color-text-main);line-height:1.5;font-size:1rem;min-height:100vh;-webkit-font-smoothing:antialiased}#root{min-height:100vh;display:flex;flex-direction:column}.app-header{background-color:var(--color-card-bg);border-bottom:1px solid var(--color-border);padding:1rem 1.5rem;display:flex;align-items:center;justify-content:space-between}.header-title-group{display:flex;align-items:center;gap:.75rem}.app-title{font-size:1.125rem;font-weight:700;color:var(--color-text-main)}.badge{font-size:.75rem;font-weight:500;background-color:#f3f4f6;color:#4b5563;padding:.25rem .625rem;border-radius:var(--radius-full)}.app-container{flex:1;display:flex;flex-direction:column;padding:1.5rem;max-width:1400px;margin:0 auto;width:100%;gap:1.5rem}@media(min-width:768px){.app-container{flex-direction:row;align-items:stretch}}.control-panel{background-color:var(--color-card-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:1.5rem;display:flex;flex-direction:column;gap:1.5rem;width:100%}@media(min-width:768px){.control-panel{width:340px;flex-shrink:0}}.panel-section{display:flex;flex-direction:column;gap:.5rem}.section-label{font-size:.875rem;font-weight:600;color:var(--color-text-main);display:flex;align-items:center;justify-content:space-between}.section-subtext{font-size:.75rem;color:var(--color-text-sub)}.shape-button-group{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem}.btn-shape{padding:.625rem .5rem;font-size:.875rem;font-weight:500;border-radius:var(--radius-md);cursor:pointer;transition:all .15s ease-in-out;display:flex;flex-direction:column;align-items:center;gap:.25rem;background-color:var(--color-card-bg);border:1px solid var(--color-border-input);color:#374151}.btn-shape:hover:not(.active){background-color:#f9fafb;border-color:#9ca3af}.btn-shape.active{background-color:var(--color-accent);border-color:var(--color-accent);color:#fff;box-shadow:var(--shadow-sm)}.btn-shape:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.color-picker-container{display:flex;align-items:center;gap:.75rem}.color-input-wrapper{position:relative;width:2.75rem;height:2.75rem;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--color-border-input);cursor:pointer}.color-input{position:absolute;top:-8px;left:-8px;width:calc(100% + 16px);height:calc(100% + 16px);border:none;cursor:pointer;background:transparent}.color-text-input{flex:1;font-family:monospace;font-size:.875rem;padding:.5rem .75rem;border:1px solid var(--color-border-input);border-radius:var(--radius-md);color:var(--color-text-main);text-transform:uppercase}.color-text-input:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px;border-color:var(--color-accent)}.preset-colors{display:flex;gap:.5rem;margin-top:.25rem}.preset-color-btn{width:1.5rem;height:1.5rem;border-radius:var(--radius-full);border:2px solid #ffffff;box-shadow:0 0 0 1px var(--color-border-input);cursor:pointer;transition:transform .1s ease}.preset-color-btn:hover{transform:scale(1.15)}.preset-color-btn:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.slider-container{display:flex;flex-direction:column;gap:.375rem}.slider-val-badge{font-family:monospace;font-size:.8125rem;color:var(--color-accent);font-weight:600;background:#fff7ed;padding:.125rem .375rem;border-radius:var(--radius-md)}.range-slider{width:100%;accent-color:var(--color-accent);cursor:pointer;height:6px;border-radius:var(--radius-full)}.range-slider:focus-visible{outline:2px solid var(--color-accent);outline-offset:4px}.slider-range-labels{display:flex;justify-content:space-between;font-size:.75rem;color:var(--color-text-sub)}.btn-reset{margin-top:auto;padding:.625rem 1rem;font-size:.875rem;font-weight:500;background-color:#fff;color:#374151;border:1px solid #d1d5db;border-radius:var(--radius-md);cursor:pointer;transition:all .15s ease;display:flex;align-items:center;justify-content:center;gap:.5rem}.btn-reset:hover{background-color:#f9fafb;border-color:#9ca3af;color:var(--color-text-main)}.btn-reset:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.canvas-wrapper{flex:1;min-height:420px;background-color:var(--color-card-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);position:relative;overflow:hidden;display:flex}.canvas-container{width:100%;height:100%;position:absolute;top:0;left:0}.canvas-hint{position:absolute;bottom:1rem;right:1rem;background-color:#ffffffd9;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid var(--color-border);border-radius:var(--radius-full);padding:.375rem .875rem;font-size:.75rem;color:var(--color-text-sub);pointer-events:none;display:flex;align-items:center;gap:.375rem}