:root{--bg: #121212;--surface: #1e1e1e;--surface2: #2a2a2a;--primary: #64b5f6;--primary-dark: #1976d2;--on-primary: #000;--text: #e1e1e1;--text-secondary: #9e9e9e;--divider: #333;--error: #cf6679;--spotify: #1db954}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;border:none;border-radius:6px;font-size:.95rem;font-weight:600;padding:.6rem 1.2rem;transition:opacity .15s,filter .15s}button:hover{filter:brightness(1.1)}button:active{filter:brightness(.9)}button:disabled{opacity:.5;cursor:not-allowed;filter:none}.btn-primary{background:var(--primary);color:var(--on-primary)}.btn-spotify{background:var(--spotify);color:#000;display:flex;align-items:center;gap:.6rem;font-size:1rem;padding:.75rem 1.6rem;border-radius:50px}.btn-ghost{background:transparent;color:var(--text-secondary);padding:.4rem .8rem}.btn-ghost:hover{color:var(--text);filter:none;background:var(--surface2)}.page{max-width:800px;margin:0 auto;padding:1.5rem 1rem}.loading,.error-msg{display:flex;align-items:center;justify-content:center;min-height:60vh;font-size:1.1rem;color:var(--text-secondary)}.error-msg{color:var(--error)}.card{background:var(--surface);border-radius:12px;padding:1.5rem;margin-bottom:1rem}.login-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:1.5rem;text-align:center;padding:2rem}.login-page h1{font-size:2rem}.login-page p{color:var(--text-secondary);max-width:360px}.navbar{background:var(--surface);border-bottom:1px solid var(--divider);display:flex;align-items:center;padding:0 1rem;height:56px;position:sticky;top:0;z-index:100}.navbar .brand{font-weight:700;font-size:1.1rem;margin-right:2rem;color:var(--text)}.navbar nav{display:flex;gap:.25rem;flex:1}.navbar nav a{color:var(--text-secondary);padding:.4rem .75rem;border-radius:6px;font-weight:500;font-size:.9rem}.navbar nav a:hover{color:var(--text);text-decoration:none;background:var(--surface2)}.navbar nav a.active{color:var(--primary);background:var(--surface2)}.navbar .logout{margin-left:auto}h2{font-size:1.25rem;margin-bottom:1rem}h3{font-size:1rem;margin-bottom:.75rem;color:var(--text-secondary)}.song-list{display:flex;flex-direction:column;gap:2px}.song-row{display:flex;align-items:center;gap:.75rem;padding:.6rem .75rem;border-radius:8px;transition:background .1s}.song-row:hover{background:var(--surface2)}.song-rank{width:24px;text-align:right;color:var(--text-secondary);font-size:.85rem;flex-shrink:0}.song-art{width:44px;height:44px;border-radius:4px;object-fit:cover;background:var(--surface2);flex-shrink:0}.song-info{flex:1;min-width:0}.song-title{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.song-artist{font-size:.85rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.song-plays{font-size:.85rem;color:var(--text-secondary);white-space:nowrap;flex-shrink:0}.tabs{display:flex;gap:.5rem;margin-bottom:1.25rem;border-bottom:1px solid var(--divider);padding-bottom:.5rem}.tab-btn{background:transparent;color:var(--text-secondary);border-radius:6px;padding:.4rem .9rem;font-size:.9rem}.tab-btn.active{background:var(--surface2);color:var(--primary)}.tab-btn:hover:not(.active){color:var(--text);filter:none;background:var(--surface2)}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}.page-header h2{margin-bottom:0}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:200;padding:1rem}.modal{background:var(--surface);border-radius:12px;width:100%;max-width:480px;max-height:90vh;display:flex;flex-direction:column}.modal-wide{max-width:600px}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;border-bottom:1px solid var(--divider);flex-shrink:0}.modal-header h2{margin:0}.modal-close{font-size:1rem;padding:.25rem .5rem}.modal-body{padding:1.25rem;overflow-y:auto}.modal-results{max-height:340px;overflow-y:auto}.song-checkbox{width:18px;height:18px;flex-shrink:0;accent-color:var(--primary);cursor:pointer}.song-row-clickable{cursor:pointer}.song-row-clickable:hover{background:var(--surface2)}.song-row-manage{align-items:flex-start;padding-top:.75rem;padding-bottom:.75rem}.btn-delete{color:var(--error)!important}.tag-chip-edit{background:transparent;border:1px dashed var(--divider);color:var(--text-secondary);font-size:.75rem;font-weight:400;padding:1px 8px;border-radius:20px;cursor:pointer}.tag-chip-edit:hover{border-color:var(--text-secondary);color:var(--text);filter:none}.tag-row{display:flex;align-items:center;gap:.75rem;padding:.6rem 0;border-bottom:1px solid var(--divider)}.tag-row:last-child{border-bottom:none}.tag-color-dot{width:18px;height:18px;border-radius:50%;flex-shrink:0}.tag-name{flex:1;font-weight:500}.tag-actions{display:flex;gap:.25rem}.tag-form{display:flex;align-items:center;gap:.5rem;margin-bottom:1rem;padding:.75rem;background:var(--surface2);border-radius:8px}.color-input{width:40px;height:36px;border:none;background:none;cursor:pointer;padding:0;flex-shrink:0}.search-input{width:100%;background:var(--surface);border:1px solid var(--divider);border-radius:8px;color:var(--text);font-size:.95rem;padding:.6rem .9rem;margin-bottom:1rem;outline:none}.search-input:focus{border-color:var(--primary)}.tag-chips{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px}.tag-chip{font-size:.75rem;font-weight:600;padding:1px 8px;border-radius:20px;border:1px solid}.stats-controls{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1rem}.stats-toggle-group{display:flex;background:var(--surface);border-radius:8px;padding:3px;gap:2px;align-self:flex-start}.stats-toggle{background:transparent;color:var(--text-secondary);font-size:.9rem;font-weight:600;padding:.35rem 1rem;border-radius:6px}.stats-toggle.active{background:var(--primary);color:#000}.stats-toggle:hover:not(.active){filter:none;background:var(--surface2);color:var(--text)}.tag-filter-row{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:1rem}.tag-filter-chip{background:transparent;border:1px solid var(--divider);color:var(--text-secondary);font-size:.8rem;font-weight:600;padding:3px 12px;border-radius:20px;cursor:pointer;transition:background .1s,color .1s,border-color .1s}.tag-filter-chip:hover{filter:none;background:var(--surface2);color:var(--text)}.tag-filter-chip.active{background:var(--primary);border-color:var(--primary);color:#000}.empty{text-align:center;padding:3rem 1rem;color:var(--text-secondary)}