:root{--primary-color: #667eea;--primary-dark: #764ba2;--secondary-color: #edf2f7;--text-color: #333;--text-muted: #666;--error-color: #e53e3e;--success-color: #38a169}body.theme-stage{--primary-color: #7fcd91;--primary-dark: #5cad70}*{box-sizing:border-box}body{margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:#f8f9fa;color:var(--text-color)}.btn{padding:.6rem 1.2rem;border-radius:8px;font-weight:500;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);border:none;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-size:.95rem;text-decoration:none}.btn-primary{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 15px #667eea59}.btn-secondary{background-color:var(--secondary-color);color:#4a5568}.btn-secondary:hover{background-color:#e2e8f0}.btn-danger{background-color:#fff5f5;color:var(--error-color);border:1px solid #feb2b2}.btn-danger:hover{background-color:#fff5f5;border-color:var(--error-color)}.btn-small{padding:.4rem .8rem;font-size:.85rem}.form-input,.form-textarea{width:100%;padding:.75rem;border:1px solid rgba(0,0,0,.1);border-radius:8px;font-size:1rem;transition:all .3s cubic-bezier(.4,0,.2,1);background-color:#fafafa}.form-input:focus,.form-textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #667eea1a}label{font-weight:500;margin-bottom:.25rem;font-size:.9rem;color:#4a5568}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spinner{width:40px;height:40px;border:4px solid #f3f3f3;border-top:4px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}.glass-panel{background:rgba(255,255,255,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.3);box-shadow:0 8px 32px #1f26870d;border-radius:12px}