*{margin:0;padding:0;box-sizing:border-box}:root{--green: #1db954;--bg: #0a0a0a;--card: #141414;--card-hover: #1a1a1a;--selected: #1db95422;--text: #fff;--text2: #a0a0a0;--text3: #666;--error: #ff4757}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6}.container{max-width:1000px;margin:0 auto;padding:2rem;padding-bottom:120px}header{display:flex;align-items:center;gap:1rem;margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:1px solid #222}header h1{flex:1;font-size:1.6rem}.user-info{display:flex;align-items:center;gap:.75rem}.user-avatar{width:36px;height:36px;border-radius:50%}.login-page,.loading-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:80vh;text-align:center;gap:1rem}.tagline{color:var(--text2);font-size:1.2rem}.btn-spotify{background:linear-gradient(135deg,#1db954,#1ed760);color:#fff;border:none;padding:1rem 2.5rem;border-radius:50px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:transform .2s}.btn-spotify:hover{transform:scale(1.05)}.spinner{width:50px;height:50px;border:3px solid #222;border-top-color:var(--green);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error{background:#ff47571a;border:1px solid var(--error);color:var(--error);padding:1rem;border-radius:10px;margin-bottom:1rem}.btn-back{background:none;color:var(--text2);border:none;padding:.5rem 0;cursor:pointer}.btn-back:hover{color:var(--text)}.btn-small{background:#222;color:var(--text2);border:none;padding:.5rem 1rem;border-radius:20px;font-size:.85rem;cursor:pointer}.btn-small:hover{background:#333;color:var(--text)}.btn-primary{background:linear-gradient(135deg,#1db954,#1ed760);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:25px;font-size:1rem;font-weight:600;cursor:pointer}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.selection-section h2{font-size:1.4rem;margin-bottom:.5rem}.subtitle{color:var(--text2);margin-bottom:1.5rem}.selection-actions{display:flex;align-items:center;gap:.75rem;margin-bottom:1.5rem}.selection-count{color:var(--green);font-weight:600;margin-left:auto}.playlists-selection-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem;margin-bottom:2rem}.playlist-select-card{display:flex;align-items:center;gap:1rem;background:var(--card);padding:.75rem;border-radius:10px;cursor:pointer;border:2px solid transparent;transition:all .2s}.playlist-select-card:hover{background:var(--card-hover)}.playlist-select-card.selected{background:var(--selected);border-color:var(--green)}.playlist-select-card img{width:50px;height:50px;border-radius:6px;object-fit:cover}.liked-card{margin-bottom:1rem;background:linear-gradient(135deg,#1a1a2e,#16213e)}.liked-card.selected{border-color:#ff6b6b;background:#ff6b6b1a}.liked-icon{font-size:2rem;width:50px;text-align:center}.playlist-checkbox{width:24px;height:24px;border:2px solid #444;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--green);flex-shrink:0}.playlist-select-card.selected .playlist-checkbox{background:var(--green);border-color:var(--green);color:#fff}.liked-card.selected .playlist-checkbox{background:#ff6b6b;border-color:#ff6b6b}.playlist-no-image{width:50px;height:50px;background:#222;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:1.5rem}.playlist-select-info{flex:1;min-width:0}.playlist-select-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.playlist-select-tracks{font-size:.85rem;color:var(--text2)}.analyze-button-container{position:fixed;bottom:0;left:0;right:0;padding:1.5rem;background:linear-gradient(transparent,var(--bg) 30%);display:flex;justify-content:center}.btn-analyze{background:linear-gradient(135deg,#1db954,#1ed760);color:#fff;border:none;padding:1rem 3rem;border-radius:50px;font-size:1.1rem;font-weight:700;cursor:pointer;box-shadow:0 4px 20px #1db9544d}.btn-analyze:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-bottom:2rem}.hero-stat{background:var(--card);padding:1.5rem;border-radius:16px;text-align:center}.hero-number{display:block;font-size:2.5rem;font-weight:800;background:linear-gradient(135deg,#1db954,#1ed760);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-label{color:var(--text2);font-size:.9rem}.card{background:var(--card);border-radius:16px;padding:1.5rem;margin-bottom:1.5rem}.card h2{font-size:1.2rem;margin-bottom:1rem}.profile-traits{display:flex;flex-direction:column;gap:.75rem}.trait{background:#1a1a1a;padding:1rem 1.25rem;border-radius:10px;border-left:3px solid var(--green)}.artists-list{display:flex;flex-direction:column;gap:.75rem}.artist-row{display:flex;align-items:center;gap:1rem}.artist-rank{width:30px;color:var(--text3);font-weight:600}.artist-name{width:150px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500}.artist-bar-container{flex:1;height:8px;background:#222;border-radius:4px;overflow:hidden}.artist-bar{height:100%;background:linear-gradient(135deg,#1db954,#1ed760);border-radius:4px}.artist-count{width:50px;text-align:right;color:var(--text2);font-size:.85rem}.popularity-buckets{display:flex;flex-direction:column;gap:.5rem}.bucket{display:flex;align-items:center;gap:1rem}.bucket-label{width:140px;font-size:.85rem;color:var(--text2)}.bucket-bar-container{flex:1;height:6px;background:#222;border-radius:3px;overflow:hidden}.bucket-bar{height:100%;background:linear-gradient(135deg,#667eea,#764ba2)}.bucket-count{width:40px;text-align:right;font-size:.85rem;color:var(--text2)}.decades-grid{display:flex;justify-content:space-around;align-items:flex-end;gap:.5rem;height:150px;padding-top:1rem}.decade-item{display:flex;flex-direction:column;align-items:center;gap:.5rem;flex:1}.decade-name{font-size:.8rem;color:var(--text2)}.decade-bar-container{width:100%;height:100px;background:#222;border-radius:6px;display:flex;align-items:flex-end;overflow:hidden}.decade-bar{width:100%;background:linear-gradient(135deg,#1db954,#1ed760);border-radius:6px 6px 0 0}.decade-count{font-size:.75rem;color:var(--text3)}.next-step{text-align:center;background:linear-gradient(135deg,#1a1a2e,#16213e);border:1px solid #333}.next-step p{color:var(--text2);margin-bottom:.5rem}.preview-count{font-size:.9rem;margin-bottom:1rem}.rating-container{padding-top:1rem}.rating-progress{height:4px;background:#222;border-radius:2px;margin-bottom:1rem}.rating-progress-bar{height:100%;background:var(--green);border-radius:2px;transition:width .3s}.rating-stats{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;color:var(--text2);font-size:.9rem}.rating-card{background:var(--card);border-radius:20px;padding:2rem;text-align:center;max-width:400px;margin:0 auto}.rating-album-art{width:200px;height:200px;margin:0 auto 1.5rem;border-radius:10px;overflow:hidden}.rating-album-art img{width:100%;height:100%;object-fit:cover}.no-art{width:100%;height:100%;background:#222;display:flex;align-items:center;justify-content:center;font-size:4rem}.rating-track-name{font-size:1.3rem;font-weight:700;margin-bottom:.5rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.rating-track-artist{color:var(--text2);margin-bottom:1rem}.artist-hint{background:#1a1a2e;padding:.5rem 1rem;border-radius:8px;font-size:.85rem;color:#667eea;margin-bottom:1rem}.audio-player{margin-bottom:1.5rem}.btn-play{background:var(--green);color:#fff;border:none;padding:.75rem 2rem;border-radius:50px;font-size:1rem;font-weight:600;cursor:pointer}.btn-play:disabled,.btn-play.disabled{background:#333;cursor:not-allowed;opacity:.6}.rating-buttons{display:flex;justify-content:center;gap:.5rem;margin-bottom:.5rem;flex-wrap:wrap}.rating-btn{width:40px;height:40px;border-radius:50%;border:none;font-size:1rem;font-weight:700;cursor:pointer;transition:transform .2s}.rating-btn:hover{transform:scale(1.15)}.rating-btn.low{background:#ff6b6b;color:#fff}.rating-btn.mid{background:#ffd93d;color:#000}.rating-btn.high{background:#6bcb77;color:#fff}.rating-labels{display:flex;justify-content:space-between;color:var(--text3);font-size:.85rem;margin-bottom:1.5rem;padding:0 .5rem}.btn-skip{background:none;border:1px solid #444;color:var(--text2);padding:.5rem 1.5rem;border-radius:20px;cursor:pointer}.btn-skip:hover{border-color:var(--text);color:var(--text)}.results-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-bottom:2rem}.result-stat{background:var(--card);padding:1.5rem;border-radius:16px;text-align:center}.result-number{display:block;font-size:2rem;font-weight:800;color:var(--green)}.result-label{color:var(--text2);font-size:.85rem}.score-distribution{display:flex;flex-direction:column;gap:.4rem}.score-row{display:flex;align-items:center;gap:.75rem}.score-label{width:50px;font-size:.85rem;color:var(--text2)}.score-bar-container{flex:1;height:8px;background:#222;border-radius:4px;overflow:hidden}.score-bar{height:100%;background:linear-gradient(90deg,#ff6b6b,#ffd93d,#6bcb77);border-radius:4px}.score-count{width:40px;text-align:right;font-size:.85rem;color:var(--text2)}.playlist-options{display:flex;flex-direction:column;gap:1rem}.btn-create{background:linear-gradient(135deg,#1db954,#1ed760);color:#fff;border:none;padding:1rem 1.5rem;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center}.btn-create span{opacity:.8;font-weight:400}.btn-create.secondary{background:#333}.btn-create:hover{transform:scale(1.02)}.reco-list{display:flex;flex-direction:column;gap:1.5rem}.reco-card{background:var(--card);border-radius:16px;padding:1.5rem}.reco-header{display:flex;align-items:center;gap:1rem;margin-bottom:1rem}.reco-artist-img{width:60px;height:60px;border-radius:50%;object-fit:cover}.reco-header h3{font-size:1.1rem}.reco-reason{font-size:.85rem;color:var(--text2)}.reco-tracks{display:flex;flex-direction:column;gap:.75rem}.reco-track{display:flex;align-items:center;gap:1rem;background:#1a1a1a;padding:.75rem;border-radius:8px}.reco-track-img{width:40px;height:40px;border-radius:4px}.reco-track-info{flex:1}.reco-track-name{display:block;font-weight:500;margin-bottom:.25rem}.reco-audio{width:100%;height:32px}@media (max-width: 768px){.container{padding:1rem;padding-bottom:100px}.hero-stats,.results-summary,.playlists-selection-grid{grid-template-columns:1fr}.artist-name{width:100px}.rating-album-art{width:150px;height:150px}}