:root{--bg-color: #050505;--panel-bg: #1a1a1a;--accent-red: #d32f2f;--text-main: #f0f0f0;--text-sub: #a0a0a0}body{margin:0;padding:0;background:var(--bg-color);color:var(--text-main);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow:hidden}.onboarding-container{height:100vh;width:100vw;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;box-sizing:border-box;background:#0a0a0a}.pref-group{width:100%;max-width:320px;display:flex;flex-direction:column;gap:16px;margin-top:20px}.pref-btn{width:100%;padding:18px;border:1px solid #333;background:#1e1e1e;color:#ccc;border-radius:16px;cursor:pointer;text-align:left;transition:all .2s ease;display:flex;flex-direction:column;gap:5px}.pref-btn.active{border-color:var(--accent-red);background:#d32f2f14;color:#fff;box-shadow:0 0 15px #d32f2f26;transform:scale(1.02)}.pref-title{font-size:1rem;font-weight:700}.pref-desc{font-size:.75rem;color:#777}.screen{position:relative;width:100vw;height:100vh;overflow:hidden}.top-bar{position:absolute;top:0;left:0;width:100%;padding:20px;display:flex;justify-content:space-between;align-items:flex-start;background:linear-gradient(to bottom,rgba(0,0,0,.8),transparent);pointer-events:none;z-index:10;box-sizing:border-box}.btn-group-bottom{display:flex;gap:15px;width:100%;max-width:350px;margin-bottom:40px}.action-btn{flex:1;padding:14px;border-radius:20px;font-weight:700;cursor:pointer;border:none}.btn-share{background:#4caf50;color:#fff}.btn-retry{background:transparent;border:1px solid #444;color:#888}.toolbar{position:absolute;bottom:30px;left:50%;transform:translate(-50%);width:90%;max-width:380px;background:#1e1e1ecc;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(255,255,255,.1);border-radius:24px;padding:15px;display:flex;flex-direction:column;gap:12px;z-index:100}.brush-row{display:flex;justify-content:space-between;gap:5px}.color-row{display:flex;justify-content:center;gap:20px;margin-top:5px}.brush-btn{flex:1;background:transparent;border:1px solid #444;color:#888;border-radius:12px;padding:8px 0;font-size:12px;cursor:pointer;display:flex;flex-direction:column;align-items:center}.brush-btn.active{background:#333;color:#fff;border-color:#fff}.brush-icon{font-size:18px;margin-bottom:2px}.color-btn{width:30px;height:30px;border-radius:50%;border:2px solid #444;cursor:pointer}.color-btn.active{border-color:#fff;transform:scale(1.2)}canvas{touch-action:none}.side-tools{position:absolute;right:15px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:15px;z-index:100}.side-btn{width:44px;height:44px;border-radius:50%;background:#1e1e1ecc;border:1px solid rgba(255,255,255,.2);color:#fff;font-size:18px;cursor:pointer;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;justify-content:center;align-items:center;box-shadow:0 4px 10px #00000080;transition:all .2s}.side-btn:active{transform:scale(.9);background:#505050e6}.result-screen{padding:20px;height:100vh;background:#111;overflow-y:auto;display:flex;flex-direction:column;align-items:center}.art-card{width:100%;max-width:350px;background:#000;border-radius:12px;padding:5px;border:1px solid #333;margin-top:20px;margin-bottom:20px;flex-shrink:0}.art-img{width:100%;height:auto;display:block;border-radius:8px}.tab-group{display:flex;gap:10px;margin-bottom:20px;width:100%;max-width:350px}.tab{flex:1;padding:10px;background:#222;color:#888;border:none;border-radius:8px;cursor:pointer}.tab.active{background:#444;color:#fff;font-weight:700}.info-card{background:#1c1c1c;padding:20px;border-radius:12px;width:100%;max-width:350px;border:1px solid #333;margin-bottom:30px}.action-box{margin-top:15px;padding:12px;background:#2e7d3226;border-left:3px solid #4caf50;color:#a5d6a7;font-size:.9rem;white-space:pre-wrap}.med-box{margin-top:15px;padding:12px;background:#2196f326;border-left:3px solid #2196f3;color:#90caf9;font-size:.9rem;white-space:pre-wrap}.retry-btn{width:100%;max-width:350px;padding:12px;background:transparent;border:1px solid #444;color:#888;border-radius:20px;margin-bottom:40px}