/* 🎨 ENHANCED ANIMATIONS */
@keyframes gradientShift {
    0%, 100% { background: linear-gradient(135deg, #667eea 0%, #764ba2 30%, #f093fb 60%, #43e97b 100%); }
    25% { background: linear-gradient(135deg, #764ba2 0%, #f093fb 30%, #43e97b 60%, #667eea 100%); }
    50% { background: linear-gradient(135deg, #f093fb 0%, #43e97b 30%, #667eea 60%, #764ba2 100%); }
    75% { background: linear-gradient(135deg, #43e97b 0%, #667eea 30%, #764ba2 60%, #f093fb 100%); }
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    animation: floatPattern 25s linear infinite;
}

@keyframes floatPattern {
    0% { transform: translateY(0px) translateX(0px); }
    25% { transform: translateY(-15px) translateX(8px); }
    50% { transform: translateY(0px) translateX(15px); }
    75% { transform: translateY(15px) translateX(8px); }
    100% { transform: translateY(0px) translateX(0px); }
}

.login-container::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
    border-radius: 50%;
    top: 15%;
    left: 5%;
    animation: floatingOrb1 20s ease-in-out infinite;
}

@keyframes floatingOrb1 {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.4; }
    50% { transform: translate(80px, -50px) scale(1.3); opacity: 0.7; }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(60px) scale(0.85);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-25px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(3deg); }
}

@keyframes logoPulse {
    0%, 100% { box-shadow: 0 10px 30px rgba(102, 126, 234, 0.5); }
    50% { box-shadow: 0 15px 40px rgba(102, 126, 234, 0.7); }
}

@keyframes titleGlow {
    0%, 100% { text-shadow: 0 0 8px rgba(102, 126, 234, 0.4); }
    50% { text-shadow: 0 0 20px rgba(102, 126, 234, 0.7); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(25px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shakeError {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-8px); }
    75% { transform: translateX(8px); }
}

@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translateY(-10px);
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}