.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 29px;border:0;border-radius:var(--radius-pill);font-size:var(--text-base);font-weight:600;font-family:var(--font-primary);text-decoration:none;text-align:center;cursor:pointer;transition:all var(--transition-base);white-space:nowrap;line-height:1}.btn--primary,.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-sm)}.btn--primary:hover,.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(var(--color-primary-rgb),.3)}.btn--primary:active,.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}.btn--secondary,.btn-secondary{background:0 0;color:var(--color-primary);border:2px solid var(--color-primary);padding:13px 27px}.btn--secondary:hover,.btn-secondary:hover{background:var(--color-primary);color:#fff;transform:translateY(-2px)}.btn--white{background:#fff;color:var(--color-primary);border:2px solid #fff;padding:13px 27px}.btn--white:hover{background:rgba(255,255,255,.9);transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn--dark{background:var(--color-footer);color:#fff}.btn--dark:hover{background:var(--color-footer-dr);transform:translateY(-2px)}.btn--success{background:var(--gradient-success);color:#fff}.btn--success:hover{background:var(--color-success);transform:translateY(-2px)}.btn--warning{background:var(--gradient-warning);color:#fff}.btn--warning:hover{background:var(--color-warning);transform:translateY(-2px)}.btn--teal{background:var(--gradient-teal);color:#fff}.btn--teal:hover{background:var(--color-teal-dark);transform:translateY(-2px)}.btn--gold{background:var(--gradient-gold);color:var(--color-text-dark)}.btn--gold:hover{background:var(--color-gold-dark);color:#fff;transform:translateY(-2px)}.btn--sm{padding:9px 18px;font-size:var(--text-sm)}.btn--md{padding:13px 25px;font-size:var(--text-base)}.btn--lg{padding:16px 36px;font-size:var(--text-lg)}.btn--xl{padding:18px 43px;font-size:var(--text-xl)}.btn--block{width:100%;display:flex}.btn:disabled,.btn--disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.btn--icon{padding:11px;width:43px;height:43px;border-radius:50%}.btn--icon.btn--sm{padding:7px;width:32px;height:32px}.btn--icon.btn--lg{padding:14px;width:50px;height:50px}.btn-group{display:inline-flex;gap:var(--space-sm);flex-wrap:wrap}.btn-group .btn{margin:0}.btn .arrow{transition:transform var(--transition-base)}.btn:hover .arrow{transform:translateX(4px)}.link-btn{display:inline-flex;align-items:center;gap:7px;color:var(--color-primary);text-decoration:none;font-weight:600;font-size:var(--text-base);transition:all var(--transition-base)}.link-btn::after{content:"→";transition:transform var(--transition-base)}.link-btn:hover{gap:11px}.link-btn:hover::after{transform:translateX(4px)}.btn-whatsapp{background:var(--color-whatsapp);color:#fff}.btn-whatsapp:hover{background:var(--color-whatsapp-dark);transform:translateY(-2px)}.btn-facebook{background:var(--color-facebook);color:#fff}.btn-facebook:hover{background:var(--color-facebook-dark);transform:translateY(-2px)}.btn-linkedin{background:var(--color-linkedin);color:#fff}.btn-linkedin:hover{opacity:.9;transform:translateY(-2px)}.btn-instagram{background:var(--color-instagram);color:#fff}.btn-instagram:hover{opacity:.9;transform:translateY(-2px)}.btn-twitter{background:var(--color-twitter);color:#fff}.btn-twitter:hover{opacity:.9;transform:translateY(-2px)}.btn-youtube{background:var(--color-youtube);color:#fff}.btn-youtube:hover{opacity:.9;transform:translateY(-2px)}.btn-support{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 25px;border-radius:var(--radius-pill);font-size:var(--text-base);font-weight:600;text-decoration:none;border:0;cursor:pointer;transition:all var(--transition-base);color:#fff}.btn-support--volunteer{background:#e74c3c}.btn-support--volunteer:hover{background:#c0392b;transform:translateY(-2px)}.btn-support--instructor{background:#3498db}.btn-support--instructor:hover{background:#2874a6;transform:translateY(-2px)}.btn-support--specialist{background:#27ae60}.btn-support--specialist:hover{background:#1e8449;transform:translateY(-2px)}.btn-support--donation{background:#f39c12}.btn-support--donation:hover{background:#d68910;transform:translateY(-2px)}.btn-support--corporate{background:#9b59b6}.btn-support--corporate:hover{background:#7d3c98;transform:translateY(-2px)}.btn-support--social-media{background:#16a085}.btn-support--social-media:hover{background:#138d75;transform:translateY(-2px)}.btn-outline-white{background:0 0;color:#fff;border:2px solid #fff;padding:13px 27px}.btn-outline-white:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}.btn-inverse{background:#fff;color:var(--color-primary)}.btn-inverse:hover{background:rgba(255,255,255,.9);transform:translateY(-2px)}