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#667eea66;z-index:999}.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{transform:translateY(-3px);box-shadow:0 8px 25px #667eea80}@media (max-width: 768px){.hamburger{display:flex}.nav-menu{position:fixed;left:-100%;top:70px;flex-direction:column;background-color:#fff;width:100%;text-align:center;transition:.3s;box-shadow:0 10px 27px #0000000d;padding:2rem 0;z-index:999}.nav-menu.active{left:0}.nav-link{padding:1rem;display:block;border-bottom:1px solid #eee}.hamburger.active .bar:nth-child(1){transform:translateY(9px) rotate(45deg)}.hamburger.active .bar:nth-child(2){opacity:0;transform:scaleX(0)}.hamburger.active .bar:nth-child(3){transform:translateY(-9px) rotate(-45deg)}.nav-actions{gap:.5rem}.lang-btn{padding:4px 8px;font-size:.8rem}.hero-container{grid-template-columns:1fr;text-align:center}.hero-content 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#00000040}.dash-login-header{text-align:center;margin-bottom:2rem}.dash-login-header h1{font-size:2.5rem;color:#667eea;margin-bottom:.25rem}.dash-login-header p{color:#7f8c8d;font-size:.95rem;margin:0}.dash-form-group{margin-bottom:1.25rem}.dash-form-group label{display:block;font-weight:600;font-size:.85rem;color:#2c3e50;margin-bottom:.5rem;text-transform:uppercase;letter-spacing:.5px}.dash-form-group input{width:100%;padding:12px 16px;border:2px solid #e5e7eb;border-radius:10px;font-size:1rem;transition:border-color .3s;box-sizing:border-box;font-family:inherit}.dash-form-group input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea26}.dash-error{background:#fef2f2;color:#e74c3c;padding:10px 14px;border-radius:8px;margin-bottom:1rem;font-size:.9rem}.dash-login-btn{width:100%;padding:14px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow 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