:root{--color-text-secondary: #6b7280;--sprite-color: #f59e0b}.sprite-page{font-family:Arial,sans-serif;max-width:1200px;margin:0 auto;padding:var(--spacing-lg);display:flex;flex-direction:column;gap:var(--panel-gap);min-height:100vh}#spriteContainer{display:flex;flex-direction:column;gap:10px}.sprite-header{padding:var(--spacing-md);flex:none}.demo-nav{margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-sm);border-bottom:1px solid var(--color-border)}.nav-back-link{font-size:.85rem;color:var(--color-primary);text-decoration:none;font-weight:500;display:inline-flex;align-items:center;gap:4px;transition:opacity .2s}.nav-back-link:hover{opacity:.8;text-decoration:underline}.title-container{display:flex;align-items:center;gap:var(--spacing-sm)}.main-title-container{display:flex;align-items:center;gap:var(--spacing-sm);flex:1}.header-info{display:flex;flex-direction:column;gap:.5rem}.header-info--title{display:flex;flex-direction:row;gap:.85rem;align-items:center}.main-title{font-size:1.25rem;font-weight:600;margin:0;color:var(--color-primary)}.version-badge{background:var(--color-primary);color:var(--color-surface);padding:.2rem .5rem;border-radius:var(--border-radius);font-size:.8rem;font-weight:500}.copyright{font-size:.8rem;color:var(--color-text-secondary)}.sprite-subtitle{margin-top:var(--spacing-md);padding-top:var(--spacing-md);border-top:1px solid var(--color-border)}.sprite-subtitle .tagline{font-size:1.75rem;font-weight:700;font-style:normal;color:var(--sprite-color);letter-spacing:-.01em}.theme-toggle-container{display:flex;gap:5px;align-items:center}.theme-icon{display:grid;grid-template-columns:1fr;grid-template-rows:1fr;height:24px;width:24px}.theme-icon--moon,.theme-icon--sun{grid-row:1;grid-column:1;width:24px;height:24px;transition:opacity .3s}.theme-icon--moon{opacity:0}.theme-icon--sun{opacity:1}.theme-toggle{display:flex;align-items:center;margin-right:.5rem}.theme-switch{position:relative;display:inline-block;width:40px;height:20px}.theme-switch input{opacity:0;width:0;height:0}.theme-slider{position:absolute;cursor:pointer;top:0;right:0;bottom:0;left:0;background-color:#ccc;transition:.4s;border-radius:20px}.theme-slider:before{position:absolute;content:"";height:16px;width:16px;left:2px;bottom:2px;background-color:#fff;transition:.4s;border-radius:50%}input:checked+.theme-slider{background-color:#2196f3}input:checked+.theme-slider:before{transform:translate(20px)}.sprite-description-panel{padding:var(--spacing-md)}.sprite-description{margin:0;font-size:.9rem;color:var(--color-text);line-height:1.6}.sprite-description code{font-family:Courier New,monospace;font-size:.9em;background:#f59e0b1f;padding:.15em .35em;border-radius:3px;color:var(--sprite-color)}.sprite-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.sprite-btn{display:flex;flex-direction:column;align-items:center;gap:6px;padding:18px 10px 14px;background:var(--color-surface);border:2px solid var(--color-border);border-radius:12px;cursor:pointer;transition:all .2s ease;color:var(--color-text);font-family:inherit;position:relative;overflow:hidden}.sprite-btn:not(:disabled):hover{border-color:var(--sprite-color);background:color-mix(in srgb,var(--sprite-color) 8%,var(--color-surface));transform:translateY(-3px);box-shadow:0 6px 20px #f59e0b26}.sprite-btn:not(:disabled):active{transform:translateY(-1px)}.sprite-btn:disabled{opacity:.5;cursor:not-allowed}.sprite-btn.active{border-color:var(--sprite-color);background:var(--sprite-color);color:#fff;box-shadow:0 0 20px #f59e0b66;transform:translateY(-2px)}.sprite-btn.active .sprite-btn__time{color:#fffc}.sprite-btn__emoji{font-size:2rem;line-height:1;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1))}.sprite-btn.active .sprite-btn__emoji{filter:drop-shadow(0 2px 6px rgba(0,0,0,.25))}.sprite-btn__label{font-size:.85rem;font-weight:600;line-height:1.2}.sprite-btn__time{font-size:.7rem;font-weight:500;color:var(--color-text-secondary);font-family:monospace;letter-spacing:.02em;line-height:1}.sprite-status{padding:12px 16px;background:var(--color-surface-secondary);border-radius:var(--border-radius);border:1px solid var(--color-border);min-height:44px;display:flex;align-items:center}.sprite-status__label{font-size:.875rem;color:var(--color-text);line-height:1.3}.loading-overlay{display:flex;align-items:center;justify-content:center;padding:40px 20px;color:var(--color-text-secondary);font-size:.9rem;gap:10px}.sprite-info{display:flex;flex-direction:column;padding:20px 24px;font-size:.85rem;line-height:1.6;color:var(--color-text)}.sprite-info h3{margin:0 0 12px;font-size:1rem;font-weight:700;color:var(--sprite-color)}.sprite-info p{margin:0 0 14px}.sprite-info p:last-of-type{margin-bottom:0}.sprite-info code{font-family:Courier New,monospace;font-size:.9em;background:#f59e0b1f;padding:.15em .35em;border-radius:3px;color:var(--sprite-color)}.info-code-block{margin:16px 0 0;padding:14px 16px;background:#1e1e2e;border-radius:8px;overflow-x:auto;font-size:.78rem;line-height:1.55}.info-code-block pre{margin:0;padding:0;background:transparent}.info-code-block code{font-family:SF Mono,Fira Code,Cascadia Code,Consolas,monospace;color:#cdd6f4}body.dark-theme{--color-text-secondary: #b0b0b0}body.dark-theme .theme-icon--moon{opacity:1;stroke:#ffb74d}body.dark-theme .theme-icon--sun{opacity:0}body.dark-theme .info-code-block{background:#11111b}body.dark-theme .sprite-description code,body.dark-theme .sprite-info code{background:#f59e0b33}@media (max-width: 800px){.sprite-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 500px){.sprite-page{padding:var(--spacing-sm)}.sprite-grid{grid-template-columns:repeat(2,1fr);gap:8px}.sprite-btn{padding:14px 8px 12px}.sprite-btn__emoji{font-size:1.6rem}.sprite-btn__time{display:none}.sprite-info{padding:14px 16px;font-size:.8rem}}