:root{--primary-color: #2563eb;--primary-dark: #1d4ed8;--primary-light: #3b82f6;--secondary-color: #64748b;--accent-color: #f59e0b;--success-color: #10b981;--danger-color: #ef4444;--bg-dark: #0f172a;--bg-light: #f8fafc;--bg-card: #ffffff;--bg-hover: #f1f5f9;--text-primary: #1e293b;--text-secondary: #475569;--text-muted: #64748b;--text-light: #f8fafc;--border-color: #e2e8f0;--border-radius: 12px;--border-radius-sm: 8px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--transition: all .3s cubic-bezier(.4, 0, .2, 1);--transition-fast: all .15s ease}*{margin:0;padding:0;box-sizing:border-box}a{color:inherit;text-decoration:none}html{scroll-behavior:smooth}body{font-family:Inter,Segoe UI,system-ui,sans-serif;line-height:1.6;color:var(--text-primary);background:#fff;min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:2rem 1.5rem}.topbar{background:#000;position:sticky;top:0;z-index:1000;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.topbar-content{max-width:1200px;margin:0 auto;padding:0 1.5rem;display:flex;justify-content:space-between;align-items:center}.menu-bar{width:32px;height:24px;position:relative;cursor:pointer;display:flex;flex-direction:column;justify-content:space-around;transition:var(--transition)}.bar{height:3px;width:100%;background-color:var(--primary-light);border-radius:1px;transition:var(--transition);transform-origin:center}.menu-bar:hover{background-color:transparent}.menu-bar.change{transform:rotate(-45deg) translate(-6px,6px);background-color:var(--accent-color);opacity:0}.attention-icon{cursor:pointer;font-size:1.3rem;padding:.5rem;border-radius:50%;transition:var(--transition);display:flex;align-items:center;justify-content:center;width:40px;height:40px;color:var(--primary-light)}.attention-icon:hover{background-color:#ffffff1a}.menu-icon{cursor:pointer;font-size:1.3rem;padding:.5rem;border-radius:50%;transition:var(--transition);display:flex;align-items:center;justify-content:center;width:40px;height:40px;color:var(--primary-light)}.menu-icon:hover{background-color:#ffffff1a}.navbar{background:transparent;box-shadow:var(--shadow-lg);position:sticky;top:61px;z-index:999}.navbar .nav{list-style:none;display:flex;justify-content:center;gap:0;max-width:1200px;margin:0 auto;padding:0 1.5rem}.navbar .nav>li{position:relative;color:var(--text-light);text-transform:uppercase;font-size:.85rem;font-weight:500;letter-spacing:.05em;cursor:pointer;transition:var(--transition);padding:1rem 1.5rem;border-bottom:3px solid transparent}.navbar .nav>li:hover{color:var(--primary-light);background:#ffffff0d;border-bottom-color:var(--primary-light)}.navbar .dropdown{list-style:none;position:absolute;top:100%;left:0;background:var(--bg-card);border-radius:var(--border-radius-sm);box-shadow:var(--shadow-lg);min-width:220px;opacity:0;visibility:hidden;transform:translateY(-10px);transition:var(--transition);z-index:1000;border:1px solid var(--border-color)}.navbar .nav>li:hover>.dropdown{opacity:1;visibility:visible;transform:translateY(0)}.navbar .dropdown li{padding:.75rem 1.25rem;border-bottom:1px solid var(--border-color);font-size:.9rem;color:var(--text-secondary);transition:var(--transition-fast);cursor:pointer}.navbar .dropdown li:hover{background:var(--primary-color);color:var(--text-light);padding-left:1.5rem}.navbar .dropdown li:last-child{border-bottom:none}section{background:var(--bg-card);border-radius:var(--border-radius);box-shadow:var(--shadow);padding:2rem;margin-bottom:2rem;border:1px solid var(--border-color);transition:var(--transition)}section:hover{box-shadow:var(--shadow-lg)}.section-title{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:1.5rem;padding-bottom:.75rem;border-bottom:2px solid var(--primary-color);display:flex;align-items:center;gap:.75rem}.section-title:before{content:"";width:4px;height:24px;background:var(--primary-color);border-radius:2px}.form-group{display:flex;flex-direction:column;gap:.5rem;flex:1;min-width:200px}label{font-size:.9rem;font-weight:500;color:var(--text-secondary)}.select-wrapper{position:relative}.select-wrapper:after{content:"▼";position:absolute;right:1rem;top:50%;transform:translateY(-50%);color:var(--text-muted);pointer-events:none;font-size:.8rem}select{width:100%;border:2px solid var(--border-color);padding:.75rem 1rem;font-size:.95rem;color:var(--text-primary);border-radius:var(--border-radius-sm);background:var(--bg-card);transition:var(--transition);-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer}select:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #2563eb1a}.btn{background:var(--primary-color);color:var(--text-light);border:none;border-radius:var(--border-radius-sm);cursor:pointer;font-weight:500;padding:.75rem 1.5rem;font-size:.95rem;transition:var(--transition);display:inline-flex;align-items:center;gap:.5rem;justify-content:center;min-height:44px}.btn:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow)}.btn:active{transform:translateY(0)}.btn-secondary{background:var(--secondary-color)}.btn-secondary:hover{background:#475569}.btn-outline{background:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-outline:hover{background:var(--primary-color);color:var(--text-light)}.selection-group{display:flex;gap:1rem;align-items:flex-end;flex-wrap:wrap;margin-top:1.5rem}.controls{display:flex;gap:1rem;align-items:center;flex-wrap:wrap;margin-top:1rem}.selected-currencies{background:var(--bg-hover);border-radius:var(--border-radius-sm);padding:1.5rem;margin-top:1.5rem;border:2px dashed var(--border-color)}.selected-list{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1rem}.tag{background:linear-gradient(135deg,var(--primary-color),var(--primary-light));color:var(--text-light);padding:.5rem 1rem;border-radius:50px;font-size:.85rem;font-weight:500;display:inline-flex;align-items:center;gap:.5rem;box-shadow:var(--shadow-sm);transition:var(--transition-fast)}.tag:hover{transform:scale(1.05);box-shadow:var(--shadow)}.tag:before{content:"●";font-size:.6rem;color:#ffffffb3}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px;margin-bottom:2rem}.card{background:#fff;border-radius:10px;box-shadow:0 4px 6px #0000001a;padding:1.5rem;transition:transform .3s ease,box-shadow .3s ease}.card:hover{transform:translateY(-5px);box-shadow:0 6px 12px #00000026}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.currency-name{font-size:1.2rem;font-weight:700;color:#2c3e50}.currency-code{background-color:#3498db;color:#fff;padding:.3rem .6rem;border-radius:4px;font-size:.9rem}.currency-value{font-size:1.5rem;font-weight:700;margin-bottom:.5rem;color:#27ae60}.currency-change{font-size:.9rem;color:#7f8c8d}.card-body{display:flex;flex-direction:column;gap:.75rem}.quote-row{display:flex;justify-content:space-between;align-items:center;padding:.5rem 0;border-bottom:1px solid var(--border-color)}.quote-row:last-child{border-bottom:none}.label{font-size:.9rem;color:var(--text-secondary)}.value{font-size:1rem;font-weight:600;color:var(--text-primary)}.card-footer{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border-color);font-size:.8rem;color:var(--text-muted)}.loading{display:flex;align-items:center;justify-content:center;padding:3rem}.spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top:3px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}table{width:100%;border-collapse:collapse;margin-top:1.5rem;font-size:.9rem;background:var(--bg-card);border-radius:var(--border-radius-sm);overflow:hidden;box-shadow:var(--shadow)}thead{background:linear-gradient(135deg,var(--primary-color),var(--primary-dark))}th{padding:1rem;text-align:left;font-weight:600;color:var(--text-light);border-bottom:2px solid var(--primary-dark)}td{padding:1rem;border-bottom:1px solid var(--border-color);color:var(--text-secondary)}tbody tr{transition:var(--transition-fast)}tbody tr:hover{background:var(--bg-hover)}tbody tr:last-child td{border-bottom:none}.last-update{text-align:center;color:var(--text-muted);margin-top:2rem;padding:1rem;font-size:.9rem;background:var(--bg-card);border-radius:var(--border-radius-sm);box-shadow:var(--shadow-sm)}.footer{background:var(--bg-dark);color:var(--text-light);padding:1rem 0}.footer-content{max-width:1200px;margin:0 auto;padding:0 1.5rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1.5rem}.footer-brand{font-weight:600;font-size:1.1rem;letter-spacing:.05em;color:var(--text-light)}.footer-nav{display:flex;gap:2rem}.footer-nav a{color:var(--text-light);text-decoration:none;font-size:.9rem;transition:var(--transition);opacity:.8}.footer-nav a:hover{opacity:1;color:var(--primary-light)}.footer-bottom{text-align:center;color:var(--text-muted);font-size:.85rem;margin-top:2rem;padding-top:1.5rem;border-top:1px solid #334155;max-width:1200px;margin-left:auto;margin-right:auto;padding-left:1.5rem;padding-right:1.5rem}.reader-modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#0f172acc;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:2000;animation:fadeIn .3s ease}.reader-modal-content{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--bg-card);padding:2.5rem;border-radius:var(--border-radius);max-width:600px;width:90%;max-height:80vh;overflow-y:auto;box-shadow:var(--shadow-lg);animation:slideUp .3s ease}.reader-modal-close{position:absolute;top:1rem;right:1rem;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-muted);transition:var(--transition);width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center}.reader-modal-close:hover{color:var(--danger-color);background:var(--bg-hover)}.reader-modal h2{margin-bottom:1.5rem;color:var(--text-primary);font-size:1.5rem}.reader-modal p{margin-bottom:1rem;line-height:1.6;color:var(--text-secondary)}.reader-modal strong{color:var(--text-primary)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.text-positive{color:var(--success-color)}.text-negative{color:var(--danger-color)}.badge{display:inline-block;padding:.25rem .5rem;border-radius:50px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.badge-success{background:var(--success-color);color:#fff}.badge-danger{background:var(--danger-color);color:#fff}.historico{width:100%;border-collapse:collapse;margin-top:1rem;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 10px #0000001a}.historico th{background-color:#f8f9fa;padding:12px;text-align:left;font-weight:600;border-bottom:2px solid #dee2e6}.historico td{padding:12px;border-bottom:1px solid #dee2e6}.historico tr:last-child td{border-bottom:none}.positive{color:#28a745;font-weight:600}.negative{color:#dc3545;font-weight:600}.loading{display:flex;justify-content:center;align-items:center;padding:2rem}.spinner{border:3px solid #f3f3f3;border-top:3px solid #3498db;border-radius:50%;width:30px;height:30px;animation:spin 1s linear infinite}.chart-container{background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 2px 10px #0000001a;margin:2rem 0}.chart-wrapper{position:relative;height:400px;width:100%}.currency-tag{display:inline-flex;align-items:center;background:#e3f2fd;padding:5px 12px;border-radius:20px;margin:5px;font-size:14px;border:1px solid #bbdefb}.remove-btn{background:none;border:none;margin-left:8px;cursor:pointer;font-size:16px;color:#666}.remove-btn:hover{color:#f44336}.positive{color:#4caf50;font-weight:700}.negative{color:#f44336;font-weight:700}.error-message{text-align:center;padding:2rem;color:#f44336;background:#ffebee;border-radius:8px}@media (max-width: 768px){.chart-wrapper{height:300px}.historico{font-size:.875rem}.historico th,.historico td{padding:8px}}@media (max-width: 1024px){.cards{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}}@media (max-width: 768px){.navbar .nav{flex-direction:column;gap:0}.navbar .nav>li{width:100%;text-align:center;border-bottom:1px solid #334155}.navbar .dropdown{position:static;width:100%;box-shadow:none;border:none;background:#0000000d}.selection-group,.controls{flex-direction:column;align-items:stretch}.form-group{min-width:auto}.footer-content{flex-direction:column;text-align:center}.footer-nav{gap:1rem}section{padding:1.5rem}.container{padding:1.5rem 1rem}}@media (max-width: 480px){.cards{grid-template-columns:1fr}.section-title{font-size:1.25rem}.reader-modal-content{padding:1.5rem}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translate(-50%,-40%)}to{opacity:1;transform:translate(-50%,-50%)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}