*,:before,:after{box-sizing:border-box}body{min-height:100vh;margin:0;padding:0}#root{width:100%;max-width:100%;min-height:100vh}:root{--color-bg:#fff;--color-primary:gold;--color-primary1:#b246b3;--color-primary2:#ff8a3d;--color-primary3:gold;--color-primary4:#ef4a81;--color-secondary:#ffd23f;--color-accent:#06d6a0;--color-accent1:#f7e1a4;--color-accent2:#bae8ca;--color-accent3:#aee3e6;--color-accent4:#f5c3cc;--color-accent-blue:#118ab2;--color-accent-purple:#7b2d8e;--color-pink:#ff69b4;--color-text:#2d3436;--color-text-light:#636e72;--color-white:#fff;--color-card:#fff8e7;--color-border:#e0d5c1;--color-shadow:#0000001a;--radius-sm:8px;--radius-md:14px;--radius-lg:20px;--radius-xl:28px;--transition:.2s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{background-color:var(--color-bg);color:var(--color-text);background-image:radial-gradient(circle at 15% 85%,#ff6b350f 0%,#0000 50%),radial-gradient(circle at 85% 15%,#06d6a00f 0%,#0000 50%),radial-gradient(circle,#ffd23f0a 0%,#0000 60%);min-height:100vh;font-family:Nunito,Segoe UI,Roboto,sans-serif;overflow-x:hidden}.app{flex-direction:column;max-width:1440px;min-height:100vh;margin:0 auto;padding:0 16px;display:flex}.app-header{background:var(--color-primary4);border-radius:0 0 var(--radius-xl) var(--radius-xl);text-align:center;margin-bottom:20px;padding:24px 32px;position:relative;overflow:hidden;box-shadow:0 4px 20px #ff6b354d}.app-header:before{content:"";background:radial-gradient(circle,#ffffff1a 0%,#0000 70%);width:200%;height:200%;animation:8s ease-in-out infinite shimmer;position:absolute;top:-50%;left:-50%}@keyframes shimmer{0%,to{transform:translate(0)}50%{transform:translate(5%,5%)}}.header-content{z-index:1;position:relative}.logo{justify-content:center;align-items:center;gap:12px;display:flex}.logo-icon{font-size:2.5rem;animation:2s ease-in-out infinite bounce}@keyframes bounce{0%,to{transform:translateY(0)rotate(0)}25%{transform:translateY(-6px)rotate(5deg)}75%{transform:translateY(-3px)rotate(-3deg)}}.logo-text{color:var(--color-primary3);text-shadow:2px 3px #00000026;letter-spacing:1px;font-size:2.5rem;font-weight:800}.header-subtitle{color:var(--color-white);opacity:.95;text-shadow:1px 1px #0000001a;margin-top:8px;font-size:1.1rem;font-weight:600}.header-decoration{pointer-events:none;width:100%;height:100%;position:absolute;top:0;left:0}.decoration-star{font-size:1.5rem;animation:3s ease-in-out infinite twinkle;position:absolute}.star-1{animation-delay:0s;top:12%;left:8%}.star-2{font-size:1.2rem;animation-delay:1s;top:20%;right:10%}.star-3{font-size:1rem;animation-delay:2s;bottom:15%;left:15%}@keyframes twinkle{0%,to{opacity:.5;transform:scale(1)}50%{opacity:1;transform:scale(1.3)}}.app-main{flex:1;align-items:flex-start;gap:20px;min-height:0;display:flex}.sidebar{flex-direction:column;flex-shrink:0;gap:16px;width:300px;display:flex}.sidebar-right{width:200px}.toolbar{background:var(--color-primary1);border-radius:var(--radius-lg);box-shadow:0 4px 16px var(--color-shadow);padding:18px 16px}.toolbar-title{color:var(--color-primary);text-align:center;margin-bottom:14px;font-size:1rem;font-weight:700;display:none}.tool-buttons{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:14px;display:flex}.tool-btn{border-radius:var(--radius-md);background:var(--color-bg);cursor:pointer;transition:all var(--transition);border:0;flex-direction:column;align-items:center;gap:4px;min-width:60px;padding:10px 12px;font-family:inherit;display:flex}.tool-btn:hover:not(:disabled){border-color:var(--color-primary);background:#fff0e6;transform:translateY(-2px);box-shadow:0 4px 12px #ff6b3533}.tool-btn.active{border-color:var(--color-primary);background:var(--color-primary);color:var(--color-primary1);box-shadow:0 4px 12px #ff6b3559}.tool-btn.active .tool-label{color:var(--color-primary1)}.tool-btn:disabled{opacity:.4;cursor:not-allowed}.tool-icon{font-size:1.5rem}.tool-label{color:var(--color-text-light);font-size:.75rem;font-weight:600}.size-control{background:var(--color-bg);border-radius:var(--radius-md);margin-top:10px;padding:12px}.size-control label{color:var(--color-text);text-align:center;margin-bottom:6px;font-size:.85rem;font-weight:600;display:block}.size-control input[type=range]{width:100%;accent-color:var(--color-primary);cursor:pointer}.size-preview{justify-content:center;align-items:center;height:44px;margin-top:8px;display:flex}.size-dot{border-radius:50%;min-width:4px;min-height:4px}.brush-dot{filter:blur(1px)}.action-buttons{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:14px;display:flex}.action-btn{border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition);border:none;justify-content:center;align-items:center;gap:8px;padding:10px 16px;font-family:inherit;font-size:.9rem;font-weight:700;display:flex}.action-btn:disabled{opacity:.4;cursor:not-allowed}.action-icon{font-size:1.1rem}.undo-btn{background:var(--color-primary4);color:#fff}.undo-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #118ab24d}.save-btn{background:var(--color-accent);color:#fff}.save-btn:hover:not(:disabled){background:#05b88a;transform:translateY(-2px);box-shadow:0 4px 12px #06d6a04d}.color-palette{background:var(--color-accent3);border-radius:var(--radius-lg);box-shadow:0 4px 16px var(--color-shadow);padding:18px 16px}.palette-title{color:var(--color-accent-purple);text-align:center;margin-bottom:14px;font-size:1rem;font-weight:700;display:none}.palette-grid{grid-template-columns:repeat(6,1fr);justify-items:center;gap:6px;display:grid}.color-swatch{cursor:pointer;width:28px;height:28px;transition:all var(--transition);box-shadow:0 2px 4px var(--color-shadow);border:3px solid #0000;border-radius:50%;padding:0}.color-swatch:hover{box-shadow:0 3px 8px var(--color-shadow);transform:scale(1.25)}.color-swatch.active{border-color:var(--color-text);box-shadow:0 0 0 2px white, 0 0 0 4px var(--color-text);transform:scale(1.3)}.canvas-area{flex:1;justify-content:center;align-items:flex-start;min-width:0;display:flex}.canvas-wrapper{background:var(--color-accent1);border-radius:var(--radius-lg);box-shadow:0 4px 20px var(--color-shadow);justify-content:center;align-items:center;width:100%;min-height:500px;padding:16px;display:flex;position:relative}.canvas-placeholder{justify-content:center;align-items:center;width:100%;min-height:400px;display:flex}.placeholder-content{text-align:center;color:var(--color-text-light)}.placeholder-icon{margin-bottom:16px;font-size:4rem;animation:3s ease-in-out infinite float;display:block}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-12px)}}.placeholder-content p{font-size:1.2rem;font-weight:600}.coloring-canvas{border-radius:var(--radius-sm);touch-action:none;max-width:100%;display:block}.coloring-canvas.hidden{display:none}.coloring-canvas.visible{animation:.3s fadeIn;display:block}@keyframes fadeIn{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}.images-area{margin-top:20px}.image-selector{background:var(--color-accent1);border-radius:var(--radius-lg);box-shadow:0 4px 16px var(--color-shadow);padding:16px}.selector-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.selector-title{color:var(--color-primary1);white-space:nowrap;font-size:.95rem;font-weight:700}.toggle-gallery-btn{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-sm);cursor:pointer;color:var(--color-text-light);transition:all var(--transition);white-space:nowrap;padding:4px 8px;font-family:inherit;font-size:.7rem;font-weight:600}.toggle-gallery-btn:hover{background:var(--color-border)}.gallery-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;display:grid}.gallery-item{border-radius:var(--radius-md);background:var(--color-card);cursor:pointer;transition:all var(--transition);border:0;flex-direction:column;justify-content:center;align-items:center;padding:6px;font-family:inherit;display:flex;overflow:hidden}.gallery-item:hover{border-color:var(--color-primary);transform:translateY(-2px);box-shadow:0 4px 12px #ff6b3533}.gallery-item.selected{border-color:var(--color-primary2);background:var(--color-primary3)}.gallery-item img{border-radius:var(--radius-sm);pointer-events:none;width:100%;height:auto;display:block}.gallery-item-label{color:var(--color-text);text-align:center;margin-top:4px;font-size:.7rem;font-weight:600}.app-footer{text-align:center;color:var(--color-text-light);margin-top:20px;padding:20px;font-size:.9rem;font-weight:600}@media (width<=1100px){.app-main{flex-direction:column;align-items:center}.sidebar{flex-flow:wrap;justify-content:center;width:100%}.sidebar-right{width:100%}.toolbar,.color-palette{flex:1;min-width:240px;max-width:400px}.image-selector{width:100%;max-width:800px}.gallery-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:10px;display:grid}.canvas-wrapper{min-height:300px}}@media (width<=600px){.app-header{border-radius:0 0 var(--radius-lg) var(--radius-lg);padding:16px 20px}.logo-text{font-size:1.8rem}.header-subtitle{font-size:.9rem}.sidebar{flex-direction:column;align-items:stretch}.toolbar,.color-palette{max-width:100%}.tool-buttons{gap:6px}.tool-btn{min-width:54px;padding:8px 10px}.palette-grid{grid-template-columns:repeat(8,1fr)}.action-buttons{flex-direction:row}.action-btn{flex:1;padding:10px 8px;font-size:.8rem}.gallery-grid{grid-template-columns:repeat(auto-fill,minmax(80px,1fr))}}