:root{--bg-primary: #0a0a0a;--bg-secondary: #1a1a1a;--bg-tertiary: #2a2a2a;--text-primary: #ffffff;--text-secondary: #b0b0b0;--accent: #00ff88;--danger: #ff4444;--border: #333333}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh}.app{max-width:100%;margin:0 auto;padding:1rem}.header{text-align:center;margin-bottom:2rem}.header h1{font-size:1.5rem;font-weight:700}.total-value{text-align:center;margin-bottom:2rem}.total-value h2{font-size:.875rem;color:var(--text-secondary);margin-bottom:.5rem}.total-value .amount{font-size:2rem;font-weight:700;color:var(--accent)}.investments{display:flex;flex-direction:column;gap:1rem;margin-bottom:5rem}.investment-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:1rem;display:flex;justify-content:space-between;align-items:center}.investment-info h3{font-size:1rem;font-weight:600;margin-bottom:.25rem}.investment-info p{font-size:.875rem;color:var(--text-secondary)}.investment-value{text-align:right}.investment-value .price{font-size:1.125rem;font-weight:600;margin-bottom:.25rem}.investment-value .change{font-size:.875rem;font-weight:500}.investment-value .positive{color:var(--accent)}.investment-value .negative{color:var(--danger)}.add-btn{position:fixed;bottom:1rem;right:1rem;background:var(--accent);color:var(--bg-primary);border:none;border-radius:50px;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;display:flex;align-items:center;gap:.5rem;cursor:pointer;box-shadow:0 4px 12px #00ff884d;min-height:48px}.modal{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.8);display:flex;align-items:center;justify-content:center;padding:1rem;z-index:1000}.modal-content{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:1.5rem;width:100%;max-width:400px}.modal-content h2{font-size:1.25rem;margin-bottom:1.5rem}.form-group{margin-bottom:1rem}.form-group label{display:block;font-size:.875rem;margin-bottom:.5rem;color:var(--text-secondary)}.form-group input{width:100%;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:8px;padding:.75rem;font-size:1rem;color:var(--text-primary)}.form-actions{display:flex;gap:.75rem;margin-top:1.5rem}.btn{flex:1;padding:.75rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;min-height:44px}.btn-primary{background:var(--accent);color:var(--bg-primary)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border)}@media (max-width: 480px){.app{padding:.75rem}}