:root{--bg-color: #121212;--card-bg: #1e1e1e;--text-color: #ffffff;--accent-color: #007AFF;--slider-thumb-size: 24px}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background-color:var(--bg-color);color:var(--text-color);display:flex;justify-content:center;min-height:100vh}.App{width:100%;max-width:500px;padding:20px;box-sizing:border-box}.hexmix-container{display:flex;flex-direction:column;gap:20px}header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #333;padding-bottom:10px}header h1{margin:0;font-size:1.5rem;font-weight:700;letter-spacing:-.5px}.date{font-size:.9rem;color:#888}.game-area{display:flex;gap:20px;justify-content:center;margin:20px 0}.swatch-container{display:flex;flex-direction:column;align-items:center;gap:10px}.swatch{width:120px;height:120px;border-radius:16px;box-shadow:0 4px 12px #0000004d;border:2px solid #333;display:flex;align-items:center;justify-content:center;font-weight:700;font-family:monospace;text-shadow:0 1px 2px rgba(0,0,0,.5)}.swatch-label{font-size:.8rem;text-transform:uppercase;letter-spacing:1px;color:#888}.controls{background-color:var(--card-bg);padding:20px;border-radius:16px;display:flex;flex-direction:column;gap:15px}.slider-group{display:flex;align-items:center;gap:10px}.slider-group label{width:20px;font-weight:700}.slider-group.r label{color:#ff4d4d}.slider-group.g label{color:#4dff4d}.slider-group.b label{color:#4d4dff}input[type=range]{flex:1;-webkit-appearance:none;background:transparent}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;height:var(--slider-thumb-size);width:var(--slider-thumb-size);border-radius:50%;background:#fff;cursor:pointer;margin-top:-10px;box-shadow:0 2px 6px #0000004d}input[type=range]::-webkit-slider-runnable-track{width:100%;height:4px;cursor:pointer;background:#333;border-radius:2px}.slider-group.r input[type=range]::-webkit-slider-runnable-track{background:linear-gradient(to right,#300,red)}.slider-group.g input[type=range]::-webkit-slider-runnable-track{background:linear-gradient(to right,#030,#0f0)}.slider-group.b input[type=range]::-webkit-slider-runnable-track{background:linear-gradient(to right,#003,#00f)}.value{width:30px;text-align:right;font-family:monospace;font-size:.9rem}.feedback-icon{width:20px;text-align:center}.mix-button{margin-top:10px;padding:15px;background-color:var(--text-color);color:var(--bg-color);border:none;border-radius:12px;font-size:1rem;font-weight:700;cursor:pointer;transition:transform .1s}.mix-button:active{transform:scale(.98)}.mix-button:disabled{opacity:.5;cursor:not-allowed}.history{display:flex;flex-direction:column;gap:10px}.guess-row{display:flex;align-items:center;gap:10px;padding:10px;background-color:var(--card-bg);border-radius:8px}.guess-num{color:#666;font-size:.8rem}.guess-color{width:30px;height:30px;border-radius:6px;border:1px solid #444}.guess-feedback{flex:1;display:flex;gap:10px;justify-content:center;font-family:monospace}.guess-acc{font-weight:700;color:var(--accent-color)}.modal-overlay{position:fixed;inset:0;background-color:#000c;display:flex;align-items:center;justify-content:center;z-index:100}.modal{background-color:var(--card-bg);padding:30px;border-radius:20px;text-align:center;width:90%;max-width:300px;box-shadow:0 10px 30px #00000080}.share-button{background-color:#2ecc71;color:#fff;border:none;padding:12px 24px;border-radius:8px;font-size:1rem;font-weight:700;cursor:pointer;margin-top:20px;width:100%}.close-button{background:transparent;border:1px solid #444;color:#888;padding:8px 16px;border-radius:8px;margin-top:10px;cursor:pointer;width:100%}